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WildBeesofEasternNorthAmericaAguidetocommonpollinators&flowers
Katherine Odanaka, Josh HallSabine Nooten & Sandra Rehan
The Rehan Lab focuses on wild bee research. Wehave special interest in pollinator biodiversity,behaviour, and evolution. This guide joins othereducational books published to explore the regionalnative bee faunas of New England, California and theGreat Lakes region. Our mission is to provideinformation about wild bees in eastern NorthAmerica including information on their diversity,nesting biology, ecology, and flower associations toincrease our understanding and awareness ofpollinators and the services they provide.
The information contained in this field guide is foreducational purposes only. Any references tocommercial products or trade names do not implyendorsement by the Rehan Lab or bias against thosenot mentioned.
This guide was produced by the Rehan Lab in 2019
Any opinions, conclusions or recommendations in thispublication are those of the authors and do not reflectthe view of the Foundation for Food and AgricultureResearch (FFAR)
(coverimagephotocredit:AlexWild)Augochloropsis metallica onTradescantiaohiensis
WildBeesofEasternNorthAmerica
Aguidetocommonpollinators&flowers
ByKatherineOdanaka,JoshHall,SabineNooten&SandraRehan
Fundingprovidedby:FoundationforFoodandAgricultureResearch
FFARGrant#549038
ReviewedbySamDroege,USGS
JoanMilam,UMassAmherst
SpecialthankstoMollyJacobsonforphotographs
1
1Introduction 22Howtousethisguide 53Beebiology 64Beesandflowers 135Beemimics 166Commonbeespecies 217Floweringplantsforbees 628 Beeconservation 1049 Keepingthebees 10710Resources 11111Index 112
2
Contents
ThisbookwasproducedtogiveabriefintroductiontothewildbeesofeasternNorthAmerica.Weproviderelevantinformationregardingtheirbiologyandpicturesofcommonlyencounteredwildbeesandnativewildflowersidealforbees,aswellasinformationdetailingwildbeedeclinesthroughouteasternNorthAmerica.
Withinthisguidewehavealsoincludedhelpfulandeasywaystoidentifycommonlyencounteredbeesandsomefrequentbeemimics.
Introduction
Currentpollinatorconservationpracticesencouragetheplantingofwildflowerstoprovidebothnestingandforagingresources.Inthisguide,weprovideseasonallyavailablewildflowersthatarefrequentlyvisitedbybees.Wehaveincludedasectiondetailingtheclosetiesbetweenhumansandwildbees,outlininghowdependentweareontheirecologicalservicesandwhyitisimportanttoconservepollinators.
SabineNooten
3
4
EasternNorthAmericanClimatePe
el,M
.C.eta
l.[CCBY
-SA3.0]W
ikim
ediaCom
mon
s
TheclimateofeasternNorthAmericavariesgreatlywithlatitude.Thisbookfocusesonwidespreadbeesandwildflowers,mostlyfoundinthesubtropicalandtemperateclimates.Thefarnorthernregions(darkgreenandgrey)haverespectivesubarcticandtundraclimates,withextremelycoldwintersandcoldsummers.Thenorthernregions(colouredblueand
turquoise)arecategorized‘humidcontinental’,withshortersummersandcolderwinters.
Köppen climate type
Mostofsouthernstates(colouredbrightgreen)areconsideredtohavea‘humidsubtropicalclimate’withhotsummersandmildwinters.
Theplantsfeaturedinthisguideareabriefsummaryofmanycommonspeciesfoundinthewildandingardensthatareattractivetobees.Theyaresortedinitiallybybloomseasonandthenalphabeticallybytheircommonname.
Thisguideisdesignedtobeanidentificationtoolforanyoneinterestedinbees.Therearethreemainsections:1.beemimics,2.commonspeciesofbees,3.floweringplantsthatprovidebeeswithpollenandnectar.Inaddition,weincludeinformativesectionsaboutrecentbeedeclinesandwhatwecandotoconservethebees.Thebeespeciesaresortedintofamiliesandthenlistedbygenera.Thiswillhelptodistinguishthespeciesbytheiroftentimesminutedifferences.Photographsofeachspecieshavealsobeenincludedtoaidinidentification.
Sabine
Noo
ten
Megachile sp.onsmoothoxeye
Howtousethisguide
5
Somebeespecies,suchasmembersofthegenusAugochlorella, areabrilliant,metallic,race-cargreen.Otherscomeinstrikingpatternsofred,yellow,andblack,suchasmanyofthecuckoobees.BeebehaviourBeesexhibitawidevarietyofbehavioursandnestingstrategiesduetotheirvastdiversity.Oneofthemostunderstoodofallbeesisthenon-nativehoneybeeknownfortheircomplexsocialbehaviour.Honeybeesareeusocial withonequeenandthousandsofworkersalllivinginasinglehive.
Thereareover20,000beesfoundworldwideandabout4,000ofthosespeciesarefoundinNorthAmerica.AcrosseasternNorthAmerica,thereareanestimated770beespecies.Thesebeesappearinavarietyofsizes,shapes,andcolours.ThelargestbeefoundinNorthAmericaisthelargecarpenterbee.
PatrickSchu
ltheiss
Agapostemon virescensBicoloredstriped-sweatbee
Beebiology
6
Uponhatching,thecleptoparasitic beelarvakillsthehostlarvaandfeedsuponitspollenball.Thesebeesarecalledcuckoobeesbecauselikethecuckoobird,adultssneaktheireggsinthenestsofotherspecies.
Incontrast,thevastmajorityofwildbeesaresolitary,inwhichasinglefemalebeeconstructsandprovisionsherownnestwithoutthehelpofotherbees.Therearesomebeesthatwillformlargecommunal aggregations,thatis,femaleswillcometogetherinoneareaandbuildtheirnestsincloseproximitytogether.Otherbeesformcooperativecolonies,muchlikehoneybees,completewithqueensandworkers.Thesecoloniesdonotgrownearlyaslargewithonlydozensofworkersatmost.Thesecolonieslastjustoneseasonbeginninginthespringandendinginthefallwhenthebeesdieoff.Thereareanumberofcleptoparasitic bees.Thesebeesdonotcollecttheirownpollennordotheycreatetheirownnest.Instead,theyenterthenestofanotherbeeandlaytheireggsinnestcells.
MollyJa
cobson
Nomada luteoloides,acuckoobee
7
LifecycleBeesareholometabolous insects,undergoingacompletemetamorphosis.Theyhavefourlifestages:egg,larva,pupa,andadult.Mostsolitarymotherbeesbuildasinglecell,provisionitwithaballmadeofpollenandnectar,layasingleeggonit,andsealthecell.Thisiscalledmassprovisioning.Theeggthenhatchesintoalarva,whichlooksmorelikeapalecaterpillarthanabee.Thelarvahasnoeyesorlegsandspendsitstimedevouringthepollenballandgrowing.Oncethethepollenballisconsumed,thelarvadefecates,molts,andentersthepupal stage.Pupaelooklikebeeshavingeyes,legsandbodysegments,gainingcolourationuntiltheymolt torevealtheirwingsasanadultbee.
CullenFranchino
Lifecycleofthesmallcarpenterbee(Ceratinacalcarata)
8
NestingBeesexhibitarangeofdifferentnestingtypes,i.e.theybuildnestsintheground,rockcrevices,snailshells,plantstems,orinhardwoods.Mostbeesdigasimpleburrowintothegroundthatcontainsafewindividualcells,eachstockedwithpollenandasingleegg.Speciesmaybeattractedtocertainkindsofsoils;somepreferclaysoilsandotherswillonlybefoundneardunesandembankments.Thedepthofnestsdugintothegroundcanreachanywherefromafewcentimetrestoafewmetresbelowthesurface.Otherbeesprefertonestinanexistingcrevice,e.g.bumblebeesnestinabandonedrodentholes,clumpsofgrass,andevencompostpilesoroldmattresses.Stems,rottinglogs,andburrowsmadebyotherinsectsareusedbysomebeespeciestobuildtheirnests.
MollyJa
cobson
GroundnestingbeeColletesvalidus
9
Sand
raReh
an
Crosssectionofbeenestintheground
Osmiacornifrons (male)emergingfromstemnest
Smallcarpenterbeespreferdead,brokenstemsofsumacandraspberryasnestsites.Thesebeescannotchewthroughtheexteriorbarkofastemandrequireexposedpithfrompruning,mowing,burning,orgrazingtomakenestingsitesavailable.Femalestunnelinthepithystemsfromafewcentimetrestoametrelong.Largecarpenterbeesformtheirnestsbyboringintomanmadehardwoods.Inpre-colonialtimes,carpenterbeeslivedindeadlogsandtreetrunks.Otherstemnestingbeeswillfindandusepre-existingcavitiesmadebybeetlesandotherinsects.Masonorleaf-cutterbees,willthenlinethoseburrowswithbitsofleaves,flowerpetals,mud,orevendownyplantfibersinordertopartitiontheirnest.
10
CullenFranchino
Ceratinacalcaratasmallcarpenterbee
KatherineOdanaka
Likesize,shapeisalsovariablerangingfromslendermaskedandminingbeestorobustbumble,carpenterandwoolcarderbees.Beescomeinmanydifferentcolours,fromredsandbrowns,metallicgreensandblues,toblackandyellow.Aneasywaytodistinguishawaspfromabeeisbytheamountofhairontheinsect’sbody.Somebeesarequitehairywhileothershavesparsepatches,butallbeeshavebranchedhairsontheirbodies.Waspsaregenerallypredatorsfeedingtheiroffspringotherinsectsorspiderswhilebeestypicallyfeedonpollenandnectar.
BeeidentificationBeescomeinmanydifferentshapesandsizes.Theyrangefromlessthan2mmtoabout40mminsize.ThelargestspeciesfoundinNorthAmericaarelargecarpenterbeesandqueenbumblebees,bothreaching30-40mmlong.Manybeesaremuchsmaller,likethemetallicsweatbeesthatareabout6mminlength.
MollyJa
cobson
XylocopavirginicaEasterncarpenterbee
11
BeeanatomyLikeallinsects,beeshavesixlegsandtheirbodiesaredividedintothreemainsections:head,thorax,andabdomen.Femalebeeshavebranchedhairsthataretypicallydenseonhindlegsandabdomen.Beeshavefourwingsandlongslenderantennae.Fliesonlyhavetwowingsandshorter,stubbyantennae.Waspsalsohavefourwingsandlongantenna,butaretypicallylesshairythanbees.
12
CullenFranchino
Ceratina calcarataForeleg
Head
Antennae
Forewing
HindWing
Abdomen
MidLeg HindLeg
Thorax
FloweringplantsBeesaregenerallythoughttohaveappearedonearthmillionsofyearsagoduringtheCretaceousperiod.Atthesametime,floweringplants,knownasAngiosperms,expandedwidelyinshape,formandsize.Thisgroupofplantswerethefirsttouseflowersforreproduction.Stamensproducepollenthatwhendepositedonthepistil,fertilizereproductivecellswhichdevelopintoseedsthatproducethenextgenerationofplants.Thissystemreliesonspreadingpollenbywind,waterormobileanimals-pollinators,thelatterbeingmoreefficient.
BeesandFlowers
JoshHall
Lilium sp.
Attractingpollinatorsiscostlyforplants.Flowersproducepollen,oils,andnectarasarewardforpollinationservices.Animalsfeedonthenectarandsimultaneouslydistributethepollencollectedfromotherplants.Insects,beesespecially,arethemostefficientandeffectivepollinators.
13
Adultbeesfeedonnectar,whiletheiroffspringeatamixtureofnectarandpollen.Manybeeshavedevelopedspecializedmechanismsontheirlegsorabdomenscalledscopaeorcorbiculaetocollectandstorepollen.Scopaearecomposedoflong,stiffhairsthathavemanyminisculebranchestoholdlargequantitiesofpollen.Formostspecies,thescopae areonthelegs,butsomespecieshavescopae locatedatthesidesandundersideoftheabdomen(right).Bumblebeesandhoneybeesdonothavescopae.Insteadtheyhavepollenbasketscalledcorbiculaethatareflatareasontheirhindlegs(left).Bumblebeespackamixtureofpollenandnectarontotheircorbiculaetotakebacktotheirnest.
Beesandplants
Sabine
Noo
ten
Sabine
Noo
ten
Bombussp.&Hoplitissp.onwildbergamot(Monarda fistulosa)
14
Throughtheprocessofco-evolution,beesbecamethemostspecializedandeffectiveanimalpollinators.Beesdevelopedawidearrayofnectarfeedingandpollencarryingfeatures,whileflowersdevelopedmanydifferentshapesandsizestoattractpollinators.Mostbeesaregeneralists,meaningthattheyvisitanytypeofflowertheycangetnectarfrom.Whereasotherbeeshavebecomesospecializedthattheyonlyvisitoneorafewtypesofflowers.Thesebeesarefittinglycalledspecialists.Oneexampleisthesquashbee,Eucera pruinosa.Thisbeeissospecializedthatitisonlyfoundonplantsinthecucurbitfamily,e.g.squashesandmelons.Squashblossomsopenintheearlymorninghours.Malesquashbeesoftenspendthenightinsidetheclosedsquashflowerwaitingtomatewithfemalesarrivingearlyinthemorningtopollinatesquashflowers.
MollyJa
ckob
son
Eucera pruinosaspecialistsquashbee 15
PatrickSchu
ltheiss
Lasioglossumpilosum(male)- generalist
16
Sand
raReh
an
Toxomerus germinatus
Therearemanyotherinsectsthatarefrequentfloralvisitorsthat,likebees,feedonnectarandtransportpollen.Theseincludeflies,wasps,ants,beetlesandbutterflies.Someofthemlookremarkablylikebeesandtheyaredescribedinthefollowingpages.
Beemimics&otherpollinators
FlowerfliesSyrphidae
TheSyrphidae,orflowerflies,frequentlyvisitflowerstocollectnectar.Syrphidsareoftenmistakenforbees.Manyofthemmimicbeeswiththeirdarkbandingandyellowcolouration.Theirtwowings,shortantennae,andlargeeyesdistinguishthemfrombeesandwasps.
17
Sabine
Noo
ten
Philanthus gibbosus
HummingbirdMothSphingidae
Sandwasps,beewolves &others
MollyJacobson
Hemaris diffinis
Thesemothsaresometimesmistakenasbumblebeemimicsduetotheirsizeandcolouration.Theyareattractedtomanyflowers,includingblueberry,andareoftenseenhoveringinflight.
Diggerwasps(Crabronidae)arecloselyrelatedtobees.Mostlynestingintheground,thesewaspsprovisiontheirlarvaewithotherinsects,unlikebeesthatprovisionwithpollen.Preyitemswillvaryamongstthedifferentspecies,andsomeofthesewaspsevenhuntbees.
18
Vespidwasps Vespidae
Thisgroupincludesthepaperwasps,yellowjacketsandhornets.AsmembersoftheVespidae,thesewaspsareeusocialandhaveaqueen,likethehoneybee.Theseeusocialspeciescanbeaggressivewhenthecolonyisdisturbedandaremuchmorelikelytostingthanbees.Paperwaspscanbeseenscavengingorhuntingwherefoodispresentandarewidelymisidentifiedasbees.Theyareespeciallyattractedtopicnicsandoutdoorgatherings,inordertofindmeatprovisionsfortheirlarvae.Adultwaspsareomnivoresandcanalsocommonlybeseentakingnectarfromflowers.
MollyJa
cobson
Dolichovespula sp.
Wikiped
ia.org
Awaspnest
19
TomM
urray;Bugguide.ne
t
Chauliognathuspensylvanicus
BeeFlies Bombyliidae
SoldierbeetlesCantharidae
BobWeb
ster;B
ugguide.ne
t
Systoechus vulgaris
Beefliescanbefoundinspring,hoveringoverthegroundandnectaring atflowers.Theirhairybodiespickuppollen.Asbeefliesmoveamongflowers,theypollinatetheplants.Beefliesfiretheireggsintobeenestsandtheirlarvaeareparasitesofbees.
Commonlyfoundongoldenrodsduringthesummer,theseblackandorangebeetlesfeedonpollenandnectarasadults.Duetotheirfrequentpresence,theyareavidpollinatorsofflowers
20
MollyJa
cobson
Laphria sp.
Robberflies Asilidae
LocustBorerCerambycidaeMegacyllene robiniae
Robberfliesarepredatory,largebodiedfliesandafewgeneracontainspeciesthatareexceptionalbumblebeemimics.Thepresenceofonlytwowings,shortantenna,largeeyes,andlongmouthpartssetsthesefliesapartfromthebeestheyimitate.
MJH
atfie
ld;stevenanz.com
Megacyllene robiniae
Adultsoftheselong-hornedbeetlesarecommonlyfoundongoldenrodinlatesummertakingnectarandpollenfromtheflowers.Duetotheircolouration,sometimestheyaresometimesmistakenforbees.TheirlarvaenestinthebarkofBlackLocustdeciduoustrees.
21
Thereareanestimated770wildbeespeciesineasternNorthAmerica,anexhaustivelistwouldgobeyondthescopeofthisguide.Herewefocusonaselectionofthemostcommonlyencounteredspecies.Beesaregroupedbyfamilyandthenbygenus.Aparticularlycuriousgroupofbees– thecuckoobeesaredescribedattheendofthissection.
Commonbeespecies
AllmembersofthefamilyAndrenidaelinetheirundergroundnestsinawaterproofsubstancetoreducemoistureandmould.Femalesmassprovisiontheiroffspringwithaballofpollenandnectaronwhichtheylayasingleegg.Uponhatching,larvaefeedonthepollenball,pupateandemergethatfallornextspring.
CullenFranchino
Andrenasp.
MiningbeesAndrenidaeAndrena
22
ThegenusAndrena, commonlyreferredtoasminingbees,isoneofthemostdiverse,withover1400speciesworldwideandabout130speciesineasternNorthAmerica.Miningbeesaresolitaryandnestinsimpleburrowstheydigintheground.Thedepthoftheburrowsrangebetweenafewcentimetrestooverametre.ThereisonegenerationofAndrena peryear.Theadultsofmostspeciesflyonlyforsixweeks.SomespeciescomeoutinsummerorfallwhileotherAndrena speciesareamongthefirstbeestoemergeintheearlyspring,sometimesoccurringevenwhensnowisstillpresentandflowersarejuststartingtobloom.
Miningbeescontinued
Miningbeescanbeeitherfloralgeneralistsorspecialists.ManyfruitcropsarepollinatedbygeneralistspringflyingAndrenaspecies,suchastheappleblossomontheright.
KatherineOdanaka
Appleblossom-Malus pumila
Andrenawilkella isanintroducedlarge,commonbeefoundacrosseasternNorthAmerica.Ithasablackbodyandthickyellowhaircoveringthebackofitshead,thorax,andlegswhichitusestogatherlargeamountsofpollen.Itsmostcommonlyfoundonintroducedcrownvetch.
23
Miningbeescontinued
MollyJa
cobson
Andrenacarlini
Rebe
ccaDe
w
Andrenawilkella
Andrenacarlini is alarge,darkspecies thatismostactiveinthelatespringandearlysummerandisabroadgeneralist.Ithasablackbodyandpaleyellowhairsonitsthorax.ThisbeeissimilartoA.vicina,butcanbedistinguishedbythesolidblackhaironitshindlegs.
24
Andrenavicina isamediumsizedbee,commonthroughoutsouthernCanadaandnorthernUS.
ItismostcommonlymistakenforA.carlini, butisdistinguishedbyhavinglonger,denserandlighterthoracichair.
A.vicina actsasabroadgeneralistthroughoutthespringandsummerandcanbefoundpollinatingcropslikeappleandblueberry.
KatherineOdanaka
Andrenavicina
MiningbeescontinuedMollyJa
cobson
25
Apismellifera, commonlyknownastheEuropeanhoneybee,wasintroducedtotheUSinthelate1600’s.Itiseusocialinnature,creatinglargecoloniesincavitiesandmanmadehiveswithasinglereproductivequeenandmanyworkersanddrones.Thisbeehasauniquecolourpattern:multiplebandsofdarkbrownandamberacrossitsabdomen,whileitsheadandthoraxareblack.Honeybeesareactivethroughouttheyearinareaswhereitiswarmenoughtosupportthem.Theentirecolonypersiststhroughthewinterunlikenativebeespecies.Honeybeeworkershaveauniquelybarbedstingerandcanonlystingonce,dyingshortlythereafter.Thisspeciesisalsotheonlyoneknowntocausehumanallergicreactions.Honeybeesaregeneralistpollinatorsfeedingonmanydifferentflowers.TodatetheyarethemostmassproducedcommercialcroppollinatorworldwideandtheonlybeespeciesinAmericanorthofMexicothatmakeshoney. Cé
liaBo
rdier
Apis mellifera
Honeybees ApidaeApis
laterintheseason.Theyareoftenobservedforagingonlateseasonplants.Somebumblebeespeciesarecommerciallyusedtopollinatecrops,suchastomatoesandblueberries,duetotheirabilitytobuzztheirflightmusclesatthefrequencyneededforpollentobereleasedbytheflower.
26
ThegenusBombus isthegroupcommonlyreferredtoasthebumblebees.Theyarelargebeesthataredenselycoveredinblack,yellowandoccasionallyorangehairs.Bumblebeescangenerateheatbyvibratingthemusclesthatcontroltheirwingswhichenablesthemtoflyincoldtemperatures.Becauseofthisability,bumblebeesarefoundfarthernorthandinhigherelevationsthanotherbees.Theyarealsoimportantpollinatorsofearlyspringcropsbecausetheywillflyincolderandwetterweatherthanmanagedhoneybees.Coloniesareestablishedbyqueensintheearlyspring,usuallyinabandonedrodentburrowsandcrevices.Smallerworkersareproducedinspring- summerwhilemalesarepresent
Sabine
Noo
ten
Bombussp.
BumblebeesApidaeBombus
27
Thetwo-spottedbumblebee,Bombusbimaculatus,isverycommonthroughouteasternNorthAmerica.ItisactivefromMarchtoSeptember,itisthefirstbumblebeeoutinspringandactsasageneralistpollinatorforalargevarietyofplants.Thetwo-spottedbumblebeeisoftenmistakenforitscloserelatives,thecommoneasternbumblebee(B.impatiens) andthebrown-beltedbumblebee(B.griseocollis).Femalescanbedifferentiatedbytheirlongerfaceandthepresenceoftwoyellowpatchesontheabdomen;malesarehighlyvariableinpatterning,oftenwithextensiveyellowcolouration.
Bombus bimaculatus
Bumblebeescontinued
Sabine
Noo
ten
28
MollyJa
cobson
Bombus griseocollis (male)
Thebrown-beltedbumblebeeB.griseocollisreceivedthisnamefromthebrownstripeacrossitsabdomenbelowthefirstyellowstripe.Thisdistinguishesitfromothersimilarspecies.Thisbumblebeeiscommoningardens.Thebrown-beltedbumblebeeiscommonacrossNorthAmericaandisactivefromFebruarytoAugust.Likeitsrelatives,itactsasaverybroadgeneralistpollinator,feedingonamultitudeofflowers.
MollyJa
cobson
Bumblebeescontinued
29
Thecommoneasternbumblebee,B.impatiens,canbeidentifiedbythesingleyellowbandacrossitsabdomen.Asthenamesuggests,itisthemostpopulousbumblebeeacrosseasternNorthAmerica.Thisbumblebeeisveryadaptable,allowingittoactasapollinatorformanyplants.Assuch,itisfrequentlyusedcommerciallyfortomatoesandotherbuzzpollinatedcrops.Coloniescanbepurchasedforfarmerstosupplementpollinationfortheircrops.B.impatiensisaspeciesincreasinginnumbersoverrecentyearsandisnotcompromisedbythemanydiseasesthoughttohavecontributedtothelocalextinctionoftherustypatchbumblebee,B.affinis.
Sabine
Noo
ten
Bombus impatiens
Bumblebeescontinued
KatherineOdanaka
30
Theperplexingbumblebee,B.perplexus,canbefoundthroughoutnorthernNorthAmericabutisuncommonorabsentinthesouthernstates.ThethreeyellowstripesacrosstheabdomenofthemalemakesthemappearmuchmoreyellowthanothercommonlyencounteredBombus species.ActivefromApriltoSeptember,thisbeecanbefoundaroundforests,orchards,andevensomebogs.Theperplexingbumblebeeisageneralistpollinatorandwillvisitmanydifferentkindsofplantsincludingblueberryandraspberry.
Bumblebeescontinued
MollyJa
cobson
Bombusperplexus(male)
KatherineOdanaka
Blueberry(Vaccinium corymbosum)
31
Thelargecarpenterbee,Xylocopavirginica, isthelargestNorthAmericanbeespecies(~40mmlong).Itburrowsintomanmadewoodenstructures,butitdoesnotdigdeepandonlycausesstructuraldamageifaggregationsareimmense.Thisbeeisageneralistpollinator,feedingonmanyflowersduringsummer.Itisblackwiththick,yellowhairsonthethorax,andcanbemistakenasabumblebee.Thelargecarpenterbeecanbeidentifiedbyitsshinyblackandbroadabdomen.Males,whichhaveaivorysquareontheirface,exhibitaggressiveandterritorialbehaviourtowards
MollyJa
cobson
Xylocopa virginica
eachother.Theywillconfrontpresumedthreatsbyapproachingandflyingaroundtheintruderinanattempttochasethemaway.Malecarpenterbeeswillnotbiteandallmalebeesareincapableofstinging.Femaleshavesolidblackfacesandarecapableofstinging,butarenotaggressiveorterritorial.
LargecarpenterbeeApidaeXylocopa
32
ThebeesinthegenusCeratina areknownasthesmallcarpenterbees.Theydigoutthesoftcentre-thepith- ofoldsticksandstemstocreatetheirnests.Raspberryandsumacaretheirpreferredplantstobuildnests.Smallcarpenterbeesbuildcellsalongthelengthofthestick,layingoneeggineachcellwithawallofwoodshavings,heldtogetherwithmandibularsecretionstomakeapaste,in-betweenthem.Theyaredarkcolouredwithametallicsheenandwaterbottleridgeshapedabdomen.Thesmallcarpenterbee,C.calcarata,iscommonthroughouteasternNorthAmerica.Itisbluetoblue-greenwithaveryreflectivesurfaceandisactivefromearlyspringtolatefall.Malesandfemalesofthisspeciescanbeeasilydistinguished;themaleshaveasmallwhitepatchontheirfaceintheshapeofanupsidedownTandfemaleshaveasmalllineorspot.Asageneralist,thisbeeisvaluedforitsabilitytopollinateawidevarietyoffloweringplantsandcrops,suchasraspberry.
CullenFranchino
Ceratinacalcarata
SmallcarpenterbeeApidaeCeratina
33
BeesinthegenusMelissodesarecommonlyreferredtoasthe“long-hornedbees”becauseofthelengthyantennaeofthemales.Manyofthebeesinthisgrouparespecialistpollinatorsthatfocusonlyononetypeofflower.Long-hornedbeesaresolitarily,groundnestingbees,andtheyareactivethroughoutthesummer.Thickhairsonthelegs,thoraxandheadarecommontoMelissodes.Thetwo-spottedlong-hornbeeM.bimaculata hasacompletelyblackbodyandveryhairyhindlegs.Thelegsarehairywithmostlypaleorwhitecolouration.
MollyJa
cobson
Melissodesbimaculata
Thisbeeisactivethroughoutthesummerandisageneralistpollinator.Thepollinationdonebytwo-spottedlong-hornbeecomplementsthatofthesquashbee,Eucera pruinosa, bothessentialtosummerbloomingcropslikemelonsandsquash.
Long-hornedbeesApidaeMelissodes
34
Theorangesunflowerbee,Melissodestrinodis,isamediumsizedbeewithvibrantyellow-orangecolouredhairsonablackbody.Thedensehairsthicklycoveringthelegs,head,andthoraxareconsistentwithothermembersofthegenus.Thesparselaterallinesacrosstheabdomen,givesthisbeeastripedappearance.
MollyJa
cobson
Melissodestrinodis
Anne
Ewert
Helianthusannuus
ThemainsourceofpollenforthisspeciesisthegenusHelianthus,morecommonlyknownassunflowers.Althoughtheyaregeneralistspollinators,iftherearesunflowersintheareatheyarestronglyattractedtothem.
Longhornedbeescontinued
35
Theeasterncucurbit(orsquash)bee,Eucerapruinosa, iscommonthroughoutthesummerandearlyfallthroughoutNorthAmericaandMexico.Thismediumsized,blackbeehasthickyellowhairsandwhitestripesontheabdomen.Itisaspecialistpollinatorforplantsinthegourdfamily(Cucurbitaceae)whichincludesmanypopularvegetableslikesquash,pumpkins,zucchiniandsomemelons.Femalesquashbeesdigburrowstonestneartheseplants.Malesarecommonlyfoundsleepingintheflowersingroups.
MollyJa
cobson
Eucera pruinosa
SquashbeesApidaeEucera (formerly Peponapis)
36
Thecommonnameofcellophanebeescomesfromawaterproofliquidsecretionthatmembersofthisgenususetolinethewallsoftheirburrows.Whendriedthisliquidresemblesthecrinkly,waxylookofcellophane.Thecellophanebeesaremediumtolargesizedground-nestingbeesandareoneofthefirstbeestoemergeinearlyspring.CellophanebeesofthegenusColletes arehairy,muchlikeAndrena species.Bycontrast,Hylaeuscellophanebeesarealmosthairlessandhaveawasp-likeappearance.
CellophanebeesColletidaeColletes
Sabine
Noo
ten
Colletessp.
Cellophanebeesaresolitarynesters,butsomeColletes specieshaveapreferencetonestinsandysoilswhichoftenresultsinlargeaggregations.
Mostspeciesarefoundinavarietyofsoiltypesanddonotformaggregations.
37
Cellophanebeescontinued
Colletesinaequalis
MollyJa
cobson
ThecellophanebeeColletesinaequalisisacommonground-dwellingbeethatemergesearlyinspring.Becausethisbeeisafloralgeneralistandappearsveryearlyintheseason,itvisitsearlyspringbloomingflowersandtrees.C.inaequalisarecommoninappleandblueberryorchards.
KatherineOdanaka
Appleorchard
38
Theblueberrycellophanebee,Colletesvalidus,isamedium-sizedbeewithafacethatischaracteristicallylongerthanwide.Ithasablackbodywithlateralstripesofwhitehairsrunningacrosstheabdomenandpaleyellowhairscoveringitsthorax.ItisthoughttobeaspecialistonthecommerciallygrownNorthAmericanhighbushblueberryVacciniumcorymbosum.
MollyJacobson
Colletesvalidus
CellophanebeescontinuedKatherineOdanaka
Vaccinium corymbosum
39
Maskedbeesalsoproducecellophanetolinetheirnests,butaremuchsmallerandmostlyhairless.Theyliveinpre-existingholesandaresolitary.Insteadofcarryingpollenonbranchedhairslikemostbees,Hyaleus beesstorepolleninternallyintheircrop,asimilarstructuretoourstomach.Theyeatthepollenandthenregurgitateitwhenneeded.Becauseoftheirsmallsizeandhairlessbodies,theycanbemistakenforwasps.ThecommonlyfoundyellowfacedmaskedbeeHylaeus modestus isasmallblackbeewithvibrantyellowpatchesonthehead,thorax,andlegs.
MollyJa
cobson
Hylaeus modestus
Theyellowfacedmaskedbeeisabroadfloralgeneralist,activefromMaytoSeptemberandcanbefoundthroughouteasternNorthAmerica.
MaskedbeesColletidaeHyaleus
40
Thebandedsweatbeesarenamedduetothewhitebandsontheirabdomensandtheirattractiontohumanperspiration.Itisthoughtthattheyusethesaltfornutrition.MembersofthegenusHalictusarewide-spreadacrosstheNorthernHemisphere.Theyaresomeofthemostcommonbeesinanygivenarea,makingthemimportantpollinatorsoffloweringplants.MostHalictus speciesareeusocial,withqueensandworkers,formingcoloniesinundergroundburrows,similartobumblebees.Colonieshaveavaryinsize,commonly10-20beesandupto200individuals.
MollyJa
cobson
Halictus ligatus onoxeyedaisy(Leucanthemum vulgare)
BandedsweatbeesHalictidaeHalictus
41
MollyJa
cobson
Halictusconfusus
Sabine
Noo
ten
Halictus ligatus
ThesweatbeeHalictusligatusismediumsized(7-8mm)andblackwithlightcolouredhairsonthethorax.Whitebandsstretchacrosstheabdomen.Thisbeehasalargehead.Thiseusocial,generalistbeepreferscompositeflowersandiswidespreadacrossNorthAmericaincludingMexico.
Thesouthernbronzefurrowbee,Halictusconfusus,issmallanddullgreenwithboldwhitebandsonitsabdomen.Thisbeeisabroadgeneralistpollinatorthatformssocialcoloniesingroundburrows.ItcanbefoundacrossNorthAmericaduringspringandsummermonths.
Bandedsweatbeescontinued
42
MollyJa
cobson
Halictus rubicundus
Bandedsweatbeescontinued
ThesweatbeeHalictusrubicundusisamedium-sizedbeewithablackbodywithbandsofhairontheirabdomenthatappearaswhitestripes.ItcanbedistinguishedfromH.ligatusbythelackofthetriangularshapedpointed,spine-likeprojectionatthebaseofitscheekandmuchnarrowerhead.Thissweatbeehasaworldwidedistributionandcanbefoundonmultiplecontinents,includingNorthAmerica,Europe,andAsia.Itisactivefromearlyspringtolatesummerandactsasageneralistpollinator.Likeothersinthisgroup,itiseusocialandlivesinsmallcoloniesinnestsbeneaththesoil.
43
ThegeneraAgapostemon,Augochloropsis,Augochlorella,andAugochlora arecommonlygroupedtogetherandcalledthegreensweatbees.Thesevibrantlycoloured,race-cargreenspeciescanlookverysimilar.Thefemalesofallgeneraareentirelygreen,exceptforthebicolouredstripedsweatbee,Agapostemonvirescens.Agapostemonvirescensisamediumsized,metallic,greenbeethatiscommonacrosssouthernCanadaandthenorthernUS.Thisspeciesnestscommunallywithuptotwodozenfemalessharinganestentrance,buteachindividualbuildsandprovisionsitsownbroodcells.
DifferentfromotherAgapostemon species,malebicolouredstripedsweatbeeshavebeenfoundtonestwithfemales.GreensweatbeesarebroadgeneralistpollinatorsactivethroughoutthewarmseasonfromMaytoOctober.
Sand
raReh
an
Agapostemon virescensBicoloredstriped-sweatbee
GreensweatbeesHalictidaeAgapostemon&similar
BothA.sericeus andA.texanus aremediumsizedbeeswithallgreenfemales.MalesofbothspecieshavegreenheadsandthoracesandstripedabdomensthathavetheappearanceoffemaleA.virescens.Thehuesofgreencanbemoreyellowormorebluedependingonthegeographicallocationoftheindividual.A.texanusismorewidespreadacrossNorthAmericathanA.seriecus.Bothspecies areknowntonestinthegroundwheremultiplefemalesshareasingleentrance.Insidethenest,eachfemalehastheirowncellwheretheystockfoodandtakecareoftheiryoung.
SteveNanz;steven
anz.com
Agapostemon sericeus
MollyJa
cobson
Agapostemontexanus
44
Greensweatbeescontinued
45
Célia
Bordier
Augochlora pura
ThegreensweatbeeAugochlora pura isasmall,shinybeeoftenfoundinwoodedareaswhereitnestsinpre-existingcavitiesinrottingwood.Interestingly,whilenormallygreen,therehavebeenindividualsfoundwithdeepblueandbrightyellowovertones.Thesebeesnestsolitarily,butdependingonnestingresourceavailability,femalesmaynestincloseproximity.Somenestshaveevenbeenfoundtowindbetweeneachother.Asageneralist,thisgreensweatbeepollinatesawidevarietyofflowersduringspringandsummerseason.Itisacommonvisitortogardens.
Greensweatbeescontinued
46
ThemediumsizedbrilliantgreenbeeAugochloropsis metallicaisfoundacrossNorthAmerica.Thisgeneralistpollinatornestsinthegroundandisactiveduringsummer.Itcanbedistinguishedfromothergreensweatbeesbyits‘D’shapedtegula (wingattachmentcover).
MollyJa
cobson
Augochloropsis metallica
Célia
Bordier
Augochlorella aurata
Augochlorella aurata isasmallmetallicgreenbee,sometimeswithblue,yellow,orcopperhues.ThisgeneralistpollinatorisfoundfromtheRockyMountainstotheeasterncoastbetweenMaytoOctober.Theyprimarilynestsocially,butoccasionallysolitarilyincoolerclimates.
Greensweatbeescontinued
47
Lasioglossum isoneofthemostwidespreadandnumerousgenerainNorthAmericaandcanbefoundfromspringthroughlatefall.Thereareroughly300speciesinNorthAmericaandabout120speciesineasternNorthAmerica.Theyrangefrom3-12mminsize.Membersinthisgenusrangeincolourfromblackanddulltogreenandmetallicspecies.Manyappearsimilarincolourandshapeandarechallengingtotellapart- evenforexperts.WhilemanyspeciesofLasioglossum aresolitary,somearesocialandformeusocialcolonies.
MollyJa
cobson
Lasioglossumtegulare
Célia
Bordier
SmalldarksweatbeesHalictidaeLasioglossum
Thesmall,darksweatbeeLasioglossumpilosum isaverycommonbee.Thisgoldengreenbeeissmallinsizeandhasdensewoollyhairscoveringmostofitsbody.ItisfoundthroughouteasternNorthAmericabetweenMarchandOctober.Asabroadgeneralistpollinator,ithasbeenrecordedvisitingover80differentfloweringplantspecies.Itnestsinthesoil.
48
TomM
urray;Bugguide.ne
t
Lasioglossumpilosum
Smalldarksweatbeescontinued
49
BeesinthegenusAnthidium arealsoknownaswoolcarderbees.Thenamederivedfromthefemale’sabilitytousetheirlarge,sharpjawstogathersoftplantfiberstoinsulatetheirnests.AboutfivespeciesofAnthidium canbefoundineasternNorthAmerica,twoofwhichareinvasive.AparticularlystrikingbehaviourthatsetsAnthidiumapartfromotherbeesisthatmalesterritoriallydefendapatchofflowers.Becauseoftheiraggressivenature,malesareknowntokillotherbeesthathappentowanderintotheirterritory.Mostwoolcarderbeespeciescanberecognisedbytheirdistinctyellowandblackcolourationsandbrightlycolouredeyes.Despitethiscolourationtheyshouldnobeconfusedwithwasps– seephotobelowforcomparison.
MollyJa
cobson
Anthidiummanicatum(bee)
Philanthus ventilabris(wasp)
WoolcarderbeesMegachilidaeAnthidium
50
MollyJa
cobson
Anthidiummanicatum
TheEuropeanwoolcarderbee,Anthidiummanicatum,isamediumsizedbeewithblackandyellowcolouration.ItwasintroducedtotheUSfromEuropeinthe1960’sandquicklycolonizedthecontinent.Thisbeere-usesoldnestingsitesandcavities,makingiteasytospread.
Woolcarderbeescontinued
Theoblongwoolcarderbee,Anthidiumoblongatum,isblackwithyellowbandsalongitsheadandabdomen.TheyaregenerallysmallerthanA.manicatum.OriginallyfromEurope,itisfoundthroughouteasternNorthAmericaduringsummerandautumn.Thisbeeisattractedtobird’sfoottrefoil,Lotuscorniculatus.
MollyJa
cobson
Anthidiumoblongatum
51
ThegenusMegachile arecommonlyknownasleaf-cutterbees.Femalebeeschewoffpiecesofleavesandpetalstoincorporateintotheirnests.Unlikemanybees,femaleswilloftenmakemultiplenests.Thesebeesnestreadilyinpre-existingcavitiesandcanbeattractedtogardensbyinstallingbeehotels.TheyemergeearlyinspringandareactivethroughSeptember.Usuallygeneralistpollinatorssomeareextremespecialists,suchasM.pugnata thatusessunflowersandrelatedspecies.Thealfalfaleaf-cutterbeeMegachilerotundata,isanimportantcroppollinatorforexample,alfalfaandcarrots.Thisbeeisthesmallestmemberofitsgroup.OriginallyfromEuropeandnotnativetoNorthAmerica,itisnowquitecommonandnaturalizedinmanypartsoftheworld.
MollyJa
cobson
Megachile rotundata
Leaf-cutterbeesMegachilidaeMegachile
52
Megachileinimica sayi isasubspeciesofthemorewidespread‘hostileleaf-cutterbee’,M.inimica.NativetoNorthAmerica,thisbeeisastrongspecialistonplantsfromthefamilyAsteraceae,includingsunflowers.Itdiffersinlegcolour(black)fromitssouthernrelativethatextendsitsrangeintoSouthAmerica.
MollyJa
cobson
Megachile inimica sayi
MollyJa
cobson
Megachile mendica
Megachile mendica isamedium-sized,blackbeewithwhitehairsonitshead,thorax,andabdomen,forminglateralbandsonthelatter.ItisperhapsthemostcommonnativeMegachile species.Itnestsinthesoilandcanbefoundduringsummerandautumn.Thisspeciesusesleaforflowerclippingstolineitsnests.
Leaf-cutterbeescontinued
53
BeesinthegenusOsmia areknownasmasonbeesbecausetheyusemudandothersimilarsubstancesinnestconstruction.Theyaresmalltomediumsizedwitharobustbuild.Usuallyemergingintheearlyspring,theybuildsolitarynestsinpre-existingundergroundburrows,crevassesinwood,stone,concrete,andknowntooccupyoldsnailshells.Somemason bees,liketheblueorchardbee(Osmialignaria)andthehorn-facedbee(O.cornifrons),areusedcommerciallyintheagriculturalsectoraspollinatorstoenhanceproductionoffruitsandnuts.
KatherineOdanaka
Osmia lignaria
MasonbeesMegachilidaeOsmia
Sabine
Noo
ten
Osmiacornifrons
54
TheblueorchardbeeOsmialignaria isanativespeciesofOsmia.Thismediumsizedbeeisrecognizedbyitsmetallicbluecolourandamixofblackandwhitehairsonthebody.ItisageneralistthroughoutNorthAmericathatoccursinspringandusuallydiesoffbytheendofJune.
MollyJa
cobson
Osmia lignaria
Thehorn-facedbee,O. cornifrons,originallycamefromJapanandwasintroducedinthelate1970’sastoenhancecroppollination.Thisbeehasadarkbodylooselycoveredwithlongredbrowntopalehair.Femalescanberecognizedbyhornlikeprotrusionsonthelowerendoftheirface.
MollyJa
cobson
Osmiacornifrons
Masonbeescontinued
55
CullenFranchino
Hoplitisproducta
ThemasonbeegenusHoplitisisasmalltomediumsizedbeevaryinginsizefrom6-13mm.TheyaresmalleranddarkerincolourationthanOsmia.Likeothermasonbeestheyalsouseamixofsubstratestomakemudpartitionsfornestconstructionortowraptheireggsinaprotectiveenvelope.InterestinglyHoplitis havebeenobservedinnestsbuiltinstemsbysmallcarpenterbees,genusCeratina.Todate,onecanonlyspeculateiftheyco-inhabitorusurpedthenest.Hoplitisbeesareknowntoreturntothesamenesttheywerebornintomaketheirownnests.
MollyJa
cobson
Hoplitits sp.
MasonbeesMegachilidaeHoplitis
56
Althoughmostbeesvisitflowerstocollectpollentoprovisionnestcells,thereareafewgenerawhodonot.Instead,thesethievesrelyonthepollencollectinglabourofotherbees.Calledcuckoobees,orcleptoparasites,thesebeesbehavesimilarlytocuckoobirds,whichlayeggsinthenestsofotherbirdsandforcetheotherbirdtocareforthecuckoobirdoffspring.Cleptoparasitism inbeeshasevolvedatleast27times,eachinadifferentlineageandthislifestyleisfoundacrossthedifferentbeefamilies.Manyofthecuckoobeescomeinstrikingpatternsofredsandyellowsgivingthemaverywaspishlook.Cuckoobeesaremostfrequentlyencounteredhoveringnearthegroundornectaring atflowers.
MollyJa
cobson
Nomada sp.
Cuckoobees parasiticbees
57
Thereareanestimated75speciesofNomadaineasternNorthAmerica.MostofthemparasitizethenestsofAndrena,althoughtherearerecordsofthemusingothergeneraincludingAgapostemon.
MollyJa
cobson
Nomada sp.
Cuckoobees ApidaeNomada
TheNomada areamongthemostcommonlyencounteredofthecuckoobees.Thesebeesaregenerallyhairlessandcomeinavastarrayofredsandyellows.InNorthAmerica,theyaretheonlybeeobservedtobeentirelyredincolour.
©Ch
arleyEiseman;w
ww.charle
yeise
man.com
Nomadasp.
Large aggregationsofAndrena willattractfemaleandmaleNomada. Theycanbeseenhoveringinandnearhostnestsites.
58
MollyJa
cobson
Nomada luteoloides
LikemostNomada,N.luteoloides isdarkbrownandyellowincolour.ItiswidespreadacrosseasternNorthAmerica.Femalescanbeobservedhoveringalongthegroundsearchingforhostnestswhilemalesarecommonlyseennectaring atflowersthroughoutthespring.
Cuckoobees ApidaeNomada andHolcopasites
Holcopasites isastrikinggenusofparasiticbeefromthefamilyApidae.Theyhaveredabdomensandablackthoraxwitharoughtexture.Atonly6mminbodylength,thesebeesareoftenoverlooked.TherearethreespeciesineasternNorthAmericaandoftenparasitisethenestsoftheCalliopsisandotherandrenidbees.
MollyJa
cobson
Holcopasites calliopsidis
59
Triepeolus isanothergenusofparasiticbee.Theyhavebodieswithdistinctivewhitehairpatterns,blackorbrightredlegsandlargebodiesthatmakesthemeasytoidentify.TheyarestrikinglysimilarincolourationandappearancetofellowcleptoparasiticgenusEpeolus.Triepeolus isanestparasiteofsweatbees,NomiaandDieunomia,andeucerine bees,includingmembersofthegenusMelissodes.Thesebeesarefoundduringthesummerandfallmonthsnectaringatavarietyofdifferentflowers.
MollyJa
cobson
Triepeolus nr.donatus
CuckoobeesApidaeTriepeolus
60
ThegenusSphecodes isanothertypeofcuckoobee.Themembersofthisgenusparasitizeothersweatbeespecies,suchasthesmalldarkLasioglossumsweatbees.TheyhavebeenobservedparasitizingspeciesofothergeneraincludingtheminingbeesAndrenaandCalliopsis,andColletes cellophanebees.SomespeciesofSphecodes aresocialparasites.Theparasiticfemalesremaininthenestwiththehost.Littleresearchhasbeendoneonthesebees,andmuchoftheirbiologyisstillamystery.
Sabine
Noo
ten
Sphecodes sp.
CuckoobeesHalictidaeSphecodes
61
Coelioxys isagenusofparasiticbeesthatcanbeidentifiedbytheirextremelypointedabdomen.Thesebeesareusuallyblackwithwhitestripesontheabdomenandsomespecieshaveredlegsandcolourfuleyes.TheyarefoundthroughoutNorthAmerica.ThemostcommonhostsofthisgenusaretheMegachileleaf-cutterbees,buttheyhavealsobeenknowntoparasitizeAnthophora nests.Theirparasitichatchlingsusepowerfuljawstoattackahosteggorlarvaandcutitinhalf.
MollyJa
cobson
Coelioxys octodentatus
CuckoobeesMegachilidaeCoelioxys
Flowersprovideallofthefoodbeesneedtosurvive.Beesobtainproteinfrompollenandsugarfromfloralnectar.Havingadiversityandabundanceofflowersinbloomfromearlyspringthroughautumnisnecessarytoprovideadequatenutritionforbeestofeedthemselvesandtheiroffspring,inadditiontoprovidingnestingsubstrateforsomebeespecies.Inthefollowingpageswehighlightsomenativeandnon-nativeherbaceousflowersthatsupportbees.Plantingnativespeciesisrecommended,butweincludecommonflowersandmanynon-nativesthatarewellestablishedineasternNorthAmerica.Thesearesortedbyseasonalbloomtimeandthenlistedalphabeticallybasedonthecommonname.
62
SabineNooten
Floweringplantsforbees
63
MollyJa
cobson
Flowertype:Aradialwhiteflowerwith8-12petalsandyellowcentre
Flower diameter:3cm
Foliage:Asingleleafandfloweroneachstem,leavesbasalsimpleorlobed
Height: 20-50cm
Location:Woodlands
Growthconditions:● Sun- shadeto
partshade● Soil- loam● Moisture-
moist
SpringBloomingPlantsBloodrootSanguinariacanadensis
Beeforagers:CuckoobeesMiningbeesSweatbees
NativetoNorthAmerica
64
Flowertype:Large,flatclustersofvibrantorangeflowerswithfiveuprightpetalsandfivedownwardfacingpetals
Flowerdiameter: 3cm
Foliage:Lance-shapedleavesthatgrowfrom5-12cmalongslender,hairystems
Height:30-100cm
Location:Fields
Growthconditions:● Sun- fullsun● Soil- sandy● Moisture– dry
SpringBloomingPlantsButterflyweed Asclepiastuberosa
Beeforagers:BumblebeesCarpenterbeesCuckoobeesGreenbeesLeaf-cutterbeesMiningbeesResinbeesSweatbees
Sabine
Noo
ten
NativetoNorthAmerica
SpringBloomingPlantsCarolinaspring-beautyClaytoniacaroliniana
65
Flowertype:Fivepalepinkorwhitepetals
Flowerdiameter: 1-2cm
Foliage:singlepairofopposite,simpleleaves
Height:10-30cm
Location:Floodplain,forestedges,forests
Growthconditions:● Sun– partshade● Soil- any● Moisture-
medium
Samue
lFreli;W
ikiped
ia.org
Beeforagers:CuckoobeesGroundbeesMiningbeesSmallcarpenterbeesSweatbees
NativetoNorthAmerica
66
Flowertype:Compositeflowerhead,brightyellow
Flowerdiameter:1-10cm
Foliage:Leavesgrowbasally,longerthanwide,toothedorlobed
Height:5-40cm
Location:disturbedareas,fieldsandmeadows,abundantweed
Growthconditions:● Sun- shadetofull
sun● Soil- sand,loam,
clay● Moisture- medium
Célia
Bordier
SpringBloomingPlantsCommondandelionTaraxacumofficinale
Beeforagers:BumblebeesCarpenterbeesHoneybeesMiningbeesSweatbees
Non-native
67
Célia
Bordier
Flowertype:White,five-petaledflowerssurroundingadensegroupofyellowstamens
Flowerdiameter:2-5cm
Foliage:Leavesdividedin3leaflets,coarselytoothed,plantsgrowfromstemsrisingfromrunnersalongtheground
Height:10-20cm
Location:Dry,openspaces,forestedges
Growthconditions:● Sun- partshade
tofullsun● Soil- any● Moisture- dry
SpringBloomingPlantsCommonstrawberryFragariavirginiana
Beeforagers:CarpenterbeesCuckoobeesMasonbeesMiningbeesSweatbees
NativetoNorthAmerica
70
Flowertype:Lightpurple,fivepetaledflowersthatgrowinsmallclustersfromasinglestem
Flowerdiameter:2-5cm
Foliage:Slenderbutsturdystemslinedwith8cmlong,oval-shapedleavesandforminginlargegroupsontheforestfloor
Height: 15-25cm
Location:Woodlands
MollyJa
cobson
SpringBloomingPlantsCreepingphloxPhloxstolonifera
Beeforagers:Beeswithlongtonguesincluding-Bumblebees-Leafcutters-Masonbees
Growthconditions:● Sun- shadeto
partsun● Soil- any● Moisture-
mediumtomoist
NativetoNorthAmerica
69
Sabine
Noo
ten
Flowertype:Denseclustersofbrightyellowflowers
Flowerdiameter:1cm
Foliage:Coarselytoothedbasalleaveswithalargelobeattheend,upperleavesegg-shaped
Height: 30-60cm
Location:Roadsidesandmeadows,common
Growthconditions:● Sun- shade
tofullsun● Soil- any● Moisture-
medium
SpringBloomingPlantsGardenyellowrocketBarbarea vulgaris
Beeforagers:CellophanebeesCuckoobeesHoneybeesMiningbeesSweatbees
Non-native
70
Height:30-60cm
Location:Prairie,meadow,openwoodlands,pastures
Growthconditions:● Sun- fullsun● Soil- sand,loam● Moisture- any
level
FanWen
;Wikiped
ia.org
SpringBloomingPlantsLanceleafcoreopsisCoreopsislanceolata
Flowertype:Rayanddiskflowers;rayflowershavefourlobesattips
Flowerdiameter:2-5cm
Foliage:Multipleerectstems;opposite,sessile,linearoblongleaves
NativetoNorthAmerica
Beeforagers:BumblebeesHoneybeesLong-hornedbees
Flowertype:Blue-purplepeaflowersindense15-45cmcone-shapedterminalclusters
Flowerdiameter:2cm
Foliage:Long,sturdystemwithlong-stalkedcompoundleaveswith12-18oblongleafletsradiatingfromacentralpoint
Height:60-120cm
Location:Fieldsandroadsides
Growthconditions:● Sun- partshade
tofullsun● Soil- any● Moisture- any
level
71
DustyDu
rant
SpringBloomingPlantsLarge-leavedlupineLupinuspolyphyllus
Beeforagers:BumblebeesCarpenterbeesSweatbeesMasonbeesLeaf-cutterbees
NativetoNorthAmerica
72
Sabine
Noo
ten
Flowertype:Largecompositeflowerwithreddishpurpleraysandanorange-reddisk
Flowerdiameter:5-10cm
Foliage: Erectstem,lowerleavestoothedandegg-shapedonlongstalks
Height: 30-120cm
Location: Openforestsandprairies
Growthconditions:● Sun- partto
fullsun● Soil- sand● Moisture-
dry
SpringBloomingPlantsPurpleConeflowerEchinaceapurpurea
Beeforagers:BumblebeesCarpenterbeesDiggerbeesLeaf-cutterbeesLong-hornedbeesMiningbeesSweatbees
NativetoNorthAmerica
73
Célia
Bordier
Flowertype:Whitetopaleblueflowerswithfourfusedpetalssurroundingayellowcentre
Flowerdiameter:1cm
Foliage:slenderstem,leavesatbaseoblongintufts,atstemtinyandopposite
Height:5-20cm
Location:Grassymeadows,fields,andopenwoods
Growthconditions:● Sun- fullsun● Soil- any● Moisture–
moist
SpringBloomingPlantsQuakerladyHoustoniacaerulea
BeeForagers:Sweatbees
NativetoNorthAmerica
74
Sabine
Noo
ten
Flowertype:Dense,flatclustersofwhiteflowersFlowerdiameter:1cmFoliage: Leavesentire,largeshrubwithred-colouredyoungbranchesHeight:1-4mLocation: Wetplaces,marshesandshorelines
SpringBloomingPlantsRed-osierdogwoodCornussericea
Growthconditions:● Sun- partshade● Soil- any● Moisture- moist
Beeforagers:Miningbees(specialists)AndrenafragilisAndrenaintegraAndrenaperisimulataAndrenaplatyparia
NativetoNorthAmerica
75
Flowertype:Sparseclustersoffive-petaled,purpleflowersontheapicesofstems
Flowerdiameter:3cm
Foliage: Leavesdeeplydividedintotoothedlobesonslenderstems
Height:30-90cm
Location:Woodlandedgesandmoistmeadows
Growthconditions:● Sun- shadeto
partshade● Soil- any● Moisture- moist
MollyJa
cobson
SpringBloomingPlantsSpottedgeraniumGeranium maculatum
Beeforagers:BumblebeesCarpenterbeesCuckoobeesMasonbeesMiningbeesSweatbees&aspecialistbee=Andrenadistans
NativetoNorthAmerica
76
Sabine
Noo
ten
Flowertype:Small,long-stalkedclustersofyellowflowerswithfivepetals
Flowerdiameter:1cm
Foliage:Leavesdividedin3s,similartoclover,longslenderstems,branchingvariablyandmostlyupright
Height:7-38cm
Location:Fields,meadows,andopenwoodlands
Growthconditions:● Sun- fullsun● Soil- any● Moisture- dry
SpringBloomingPlantsYellowwoodsorrel Oxalisstricta
Beeforagers:CarpenterbeesSweatbees
NativetoNorthAmerica
77
Sabine
Noo
ten
Flowertype:Brightyellowpeaflowersinterminalumbels
Flowerdiameter:1cm
Foliage:Slenderstemswithcompoundleaves,3pointyleafletsatthetopand2atthebase
Height:5-50cm
Location:Fieldsandroadsides
Growthconditions:● Sun- fullsun● Soil- any● Moisture- any
level
SummerBloomingPlantsBird’sfoottrefoilLotuscorniculatus
Beeforagers:BumblebeesLeaf-cutterbeesMasonbeesMiningbeesSweatbeesAnthidiumoblongatum(specialist)
Non-native
78
Flowertype:Narrowspikeswithsmalltubularpurpleflowers
Flowerdiameter:1cm
Foliage:Squarestemswithopposite,simpleleaves
Height:60-150cm
Location:Meadows,woods,prairies,ditches,andpastures
Growthconditions:● Sun- fullor
partialsun● Soil- sand● Moisture- moist
CodyHou
gh;W
ikiped
ia.org
SummerBloomingPlantsBluevervainVerbenahastata
Beeforagers:BumblebeesCarpenterbeesCuckoobeesMaskedbeesMiningbeesSweatbees NativetoNorthAmerica
79
Flowertype:Clustersoffive-petaled,brightyellowflowerswithspotsonthemargins
Flowerdiameter:1cm
Foliage:simple,oppositeleaves;1-4cmlong
Height:2-6m
Location:riverandlakeshores,swamps,wetlandmargins
Robe
rtH.M
ohlenb
rock;W
ikiped
ia.org
SummerBloomingPlantsCanadianSt.John’swortHypericumcanadense
Growthconditions:● Sun- sun● Soil- wet● Moisture- moist
Beeforagers:BumblebeesSweatbees NativetoNorthAmerica
80
Sabine
Noo
ten
Flowertype:Dense,sphericalclustersofpinktopurpleflowerswithfiveupwardandfivedownwardfacingpetals
Flowerdiameter: 1cm
Foliage:Thick,hairystemswithlarge,short-stalkedleavesthatreleaseathickwhitesubstancewhenbroken
Height:60-180cm
Location:Fieldsandroadsides
Growthconditions:● Sun- fullsun● Soil- any● Moisture- moist
SummerBloomingPlantsCommonmilkweedAsclepiassyriaca
Beeforagers:BumblebeesMiningbeesSweatbees
NativetoNorthAmerica
81
DustyDu
rant
Flowertype:Terminalheadsofsmall,dense,brightred-pinkflorets,moreelongatethanotherclover
Flowerdiameter:1-5cmheight
Foliage:Leavestrifoliate,leafletshairywithbilobedapexalonguprightslenderstems
Height:25-50cm
Location:Forestedges,fields,androadsides
Growthconditions:● Sun- fullsun● Soil- any● Moisture- moist
SummerBloomingPlantsCrimsoncloverTrifoliumincarnatum
Beeforagers:BumblebeesCarpenterbeesHoneybeesMasonbeesMiningbeesSweatbees
Non-native
82
Flowertype:Tightgroupofpinktopurplefloretsattheapex
Flowerdiameter:2-5cm
Foliage:Anerect,hairystemwithmanyspinedwings,leaveslong,alternate,deeplylobed;leavesgreenontopandwhiteunderneath
Height:5-18cm
Location:Colonizesmoisttodrysoils;pastures,oldfields,roadsides,forestedge
Growthconditions:● Sun- fullsun● Soil- any● Moisture- any
level
GeorgeFM
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SummerBloomingPlantsFieldthistleCirsiumdiscolor
Beeforagers:BumblebeesCarpenterbeesLeaf-cutterbeesMaskedbeesMiningbeesSweatbees
NativetoNorthAmerica
83
Flowertype:Deep,tubular,whiteflowersmadeoftwolips
Flowerdiameter:1-3cm
Foliage:Slenderstemswithlongtaperingleaves,ellipticleavesatbase
Height:90-150cm
Location:Meadows,fields,andforestedges
Growthconditions:● Sun- parttofull
sun● Soil- sandand
loam● Moisture- any
level
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SummerBloomingPlantsFoxglovebeardtonguePenstemondigitalis
Beeforagers:BumblebeesCarpenterbeesDiggerbeesLeaf-cutterbeesMasonbeesSweatbeesWool-carderbees
NativetoNorthAmerica
84
Wikiped
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Flowertype:Dense,small,whiteflowers;two-lippedpetals
Flowerdiameter:2cm
Foliage:Narrow,opposite,simpleleaves;Leaves6cmlong
Height:90cm
Location:Meadows,forestedges,anddisturbedhabitats
Growthconditions:● Sun- partialto
fullsun● Soil- any● Moisture- all
SummerBloomingPlantsMountainmintPycnanthemum virginianum
Beeforagers:BumblebeesCuckoobeesMasonbeesMiningbeesSweatbeesNativetoNorthAmerica
85
Flowertype:Flatyellowflowerwithfiveovaltoheart-shapedpetals
Flowerdiameter:1cm
Foliage:Alternateandcompoundleaves;leaflets5cmlong
Height:30-90cm
Location:fields,roadsides,wasteareas,disturbedsoil
Growthconditions:● Sun- partto
fullsun● Soil- loam● Moisture-
medium
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SummerBloomingPlantsRoughcinquefoilPotentillanorvegica
Beeforagers:BumblebeesMaskedbeesSweatbees
NativetoNorthAmerica
86
Forestand
Kim
Starr;W
ikipeida.org
Flowertype:Yellowflowerswithfiveirregularpetals
Flowerdiameter:1cm
Foliage:Hairless,multiplestems;alternate,oblongleaves;leaves3-6cmlong
Height:30-60cm
Location:Rivers,ponds,woods,prairies,thickets,roadsides
Growthconditions:● Sun- sun● Soil- sandy● Moisture- moist
SummerBloomingPlantsSensitivepartridgepeaChamaecristanictitans
Beeforagers:BumblebeesMasonbeesMiningbeesSweatbeesNativetoNorthAmerica
87
Flowertype:Fivebroadroundedpetalswithwavyedges;pinktodeeprose;numerousyellowstamens
Flowerdiameter:5-8cm
Foliage:Shrubwithoutpricklesalongitsstems;leavesarealternateandcompound;leafletsare2-4cmlong
Height:1-2m
Location:Woodlandedges,prairie,lakeshores
Growthconditions:● Sun– sun;part
shade● Soil- clay● Moisture-
mediumtodry
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SummerBloomingPlantsSmoothroseRosablanda
Beeforagers:BumblebeesCarpenterbeesMaskedbeesMasonbeesSweatbeesNativetoNorthAmerica
88
Flowertype:Orangeflowerswiththreelobedcorolla
Flowerlength:2cm
Foliage:Ovate,alternateleaves,13cmlong
Height:60-150cm
Location:Woodlands,alongrivers,androadsideditches
Growthconditions:● Sun- parttofullsun● Soil- any● Moisture- moist
D.Gordo
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SummerBloomingPlantsSpottedjewelweedImpatienscapensis
Beeforagers:BumblebeesLongtonguedbees
NativetoNorthAmerica
FritzGeller-Grim
m;W
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89
Flowertype:Pyramidshapedclusters;densepinktorosepurpleflowers
Flowerdiameter:1.5cm
Foliage:Reddishbrown,hairystemslinedwithtoothed,ovateleaves
Height:60-120cm
Location:wetlands;sandymarshes;shorelines
Growthconditions:● Sun– Sun● Soil- loam● Moisture- moist
SummerBloomingPlantsSteeplebushSpiraea tomentosa
Beeforagers:BumblebeesCarpenterbeesMaskedbeesMiningbeesSweatbeesNativetoNorthAmerica
Steven
G.Joh
nson
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90
Flowertype:Compositeflowerwithmanyslender,whitefloretsinaroundhead
Flowerdiameter:1cm
Foliage:Leavesinleafletsofthreeswithdistinctlight-colouredmarkings
Height:15-60cm
Location:Fields,roadsidesandmeadows
Growthconditions:● Sun- fullsun● Soil- clay● Moisture- moist
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SummerBloomingPlantsWhitecloverTrifoliumrepens
Beeforagers:BumblebeesHoneybeesMasonbeesMiningbeesSweatbees Non-native
91
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Flowertype:Smallelongateclustersofwhitetopale-pinkflowerswith5petals
Flowerdiameter:1cm
Foliage:Finelytoothed,lance-shapedleavesalternatingalongthestem
Height:60-180cm
Location:Wetlandsandfreshwatershorelines
Growthconditions:● Sun- shadetofull
sun● Soil- any● Moisture-
mediumtowet
SummerBloomingPlantsWhitemeadowsweetSpiraeaalba
Beeforagers:BumblebeesCarpenterbeesMiningbees
NativetoNorthAmerica
Flowertype:Denseroundedclusterofpurplish-pinktubularflowersaroundagreencentraldisk
Flowerdiameter:4cm
Foliage:Toothed,lance-shapedleaves;oppositealongunbranchedsquarestems
Height:60-90cm
Location:Hillsidesandforestedges
Growthconditions:● Sun- parttofullsun● Soil- any● Moisture- medium
todry
92
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AutumnBloomingPlantsWildbergamotMonardafistulosa
Beeforagers:BumblebeesCarpenterbeesLeaf-cutterbeesLong-hornedbeesResinbeesSweatbeesWool-carderbees
NativetoNorthAmerica
93
WyattShe
ll
Flowertype:Largecompositeflowerwithacone-shaped,blackcentraldisksurroundedbythin,yellowrayflorets
Flowerdiameter:5-10cm
Foliage:Thinlytoothedleavesalongacoarsebristlystem
Height:30-90cm
Location:Openspaces
Growthconditions:● Sun- fullsun● Soil- sand● Moisture- any
level
AutumnBloomingPlantsBlack-eyedSusanRudbeckiahirta
Beeforagers:BumblebeesCarpenterbeesCuckoobeesLeaf-cutterbeesLong-hornedbeesSweatbeesAndrenarudbeckia(specialist)NativetoNorthAmerica
94
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Flowertype:Curvedone-sidedclustersofsmallyellowflowersatbranchtips
Flowerdiameter:<1cm
Foliage:Leaveslanceshaped,sharplytoothed,uniforminsize,smoothstemnearthebase,downyabove
Height:30-150cm
Location:Fieldsandroadsides
Growthconditions:● Sun- parttofullsun● Soil- any● Moisture- medium
todry
AutumnBloomingPlantsCanadagoldenrodSolidagocanadensis
Beeforagers:BumblebeesCarpenterbeesCellophanebeesCuckoobeesDiggerbeesMaskedbeesMiningbeesSweatbees
NativetoNorthAmerica
95
D.Gordo
n,E.R
obertson
;Wikiped
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Flowertype:Compositeflowersmadefrommanybrightyellowflorets,onlongstalks,oftenmorethanonecrownperstalk
Flowerdiameter:3cm
Foliage:Simpleandalternateleaves;leavesare2-15cminlength
Height:30-90cm
Location:Fields,beaches,woodsandwoodlandedges
Growthconditions:● Sun- shadeto
fullsun● Soil- loam● Moisture- moist
AutumnBloomingPlantsCanadahawkweedHieraciumcanadense
Beeforagers:BumblebeesLeaf-cutterbeesSweatbees
NativetoNorthAmerica
96
MollyJa
cobson
Flowertype:Denseclustersofsmall,whiteflowersattheapexofthehighestbranches
Flowerdiameter:1cm
Foliage:Bristlystemwithlarge,toothedlowerleavesonoppositesidesandconnectedaroundthestem
Height:1-2meters
Location:Openwoodsandprairies
Beeforagers:BumblebeesMaskedbeesMiningbeesSweatbees
AutumnBloomingPlantsCommonbonesetEupatoriumperfoliatum
Growthconditions:● Sun- partshadeto
fullsun● Soil- sandandclay● Moisture-
mediumtomoist
NativetoNorthAmerica
97
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Flowertype:solitarycrownswithmanywedge-shaped,three-toothed,yellowpetalsaroundacentral,knob-shapeddisk
Flowerdiameter:2-5cm
Foliage:Slenderstemswithtoothed,lance-shapedleavescomingoffinwings
Height:30-180cm
Location:Moistmeadowsandshorelines
Growthconditions:● Sun- fullsun● Soil- clay● Moisture-
moist
AutumnBloomingPlantsCommonsneezeweedHeleniumautumnale
Beeforagers:BumblebeesCarpenterbeesLeaf-cutterbeesLong-hornedbeesMaskedbeesSweatbees
NativetoNorthAmerica
98
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Flowertype:Compositeflowerwith50-100whiterayfloretsandayellowcentraldisk
Flowerdiameter:1cm
Foliage:Hairystemwithlanceshaped,toothedhairyleavesthroughoutitslength
Height:30-150cm
Location:Fields,roadsidesanddisturbedareas
Growthconditions:● Sun- parttofull
sun● Soil- any● Moisture- moist
AutumnBloomingPlantsEasterndaisyfleabaneErigeronannuus
Beeforagers:BumblebeesCarpenterbeesCuckoobeesLong-hornedbeesMaskedbeesSweatbees
NativetoNorthAmerica
99
Flowertype:40-50purplerayssurroundingayellow-redcentraldisk
Flowerdiameter:2-5cm
Foliage:Lance-shaped,claspedleavessurroundingastemcoveredinbristlyhairs
Height:60-240cm
Location:Fieldsanddampmeadows
Beeforagers:BumblebeesCarpenterbeesSweatbees
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cobson
AutumnBloomingPlantsNewEnglandAsterAsternovae-angliae
Growthconditions:● Sun– partshade
tofullsun● Soil- sand,loam,
clay● Moisture- moist
NativetoNorthAmerica
100
Rebe
ccaDe
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Flowertype:Compositeflowerinroundheadswithslender,purpletodarkpinkflorets
Flowerdiameter:1cm
Foliage:Leavesinleafletsofthreeswithawhite,crescentshape
Height:15-60cm
Location:Fieldsandmeadows
Growthconditions:● Sun- fullsun● Soil- loam● Moisture- moist
AutumnBloomingPlantsRedcloverTrifoliumpratense
Beeforagers:BumblebeesHoneybeesMasonbeesMiningbeesSweatbeesNon-native
101
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Flowertype:Compositeflowerwithlong,yellowrayfloretsandacone-shaped,browncentraldisk
Flowerdiameter: 5cm
Foliage:Large,egg-shapedleaveswithlongstalksandcoarseteethoppositeatsmoothstem
Height:60-150cm
Location:Openwoodsandthickets
Growthconditions:● Sun- fullsun● Soil- sand● Moisture- moist
AutumnBloomingPlantsSmoothoxeyeHeliopsishelianthoides
Beeforagers:BumblebeesCuckoobeesLeaf-cutterbeesLong-hornedbeesMiningbeesSweatbees
NativetoNorthAmerica
102
Flowertype:Yellowflowersincurvedone-sidedclustersatcentralstemandbranches
Flowerdiameter:1cm
Foliage:Lance-shaped,lightly-toothedleavesalongagreyanddownystem
Height:60-200cm
Location:Dry,openspaces
Growthconditions:● Sun- parttofull
sun● Soil- sand,loam,
clay● Moisture- moist
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AutumnBloomingPlantsTallgoldenrodSolidagoaltissima
Beeforagers:BumblebeesCarpenterbeesDiggerbeesMaskedbeesMiningbeesSweatbees
NativetoNorthAmerica
103
Flowertype:Flowerspikeswithlong,irregular,tubularflowers;colourcanbepurple,pink,andoccasionallywhite
Flowerdiameter:1cm
Foliage:Leavesareoppositeandsimplewithtoothededgesandapointedtip;stemsaresquareandcoveredinshorthairs
Height:60-120cm
Location:Woods;alongstreamsandrivers
Growthconditions:● Sun- parttofullsun● Soil- any● Moisture- moist
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AutumnBloomingPlantsPurplegianthyssopAgastachescrophulariifolia
Beeforagers:BumblebeesCarpenterbeesLeaf-cutterbeesLong-hornedbeesResinbeesSweatbeesWool-carderbees
NativetoNorthAmerica
HabitatlossThelargestthreatfacingbeesishabitatlossduetothedestructionofnaturallandscapes.Inprotectedandrestoredenvironments,beeshaveaccesstoavarietyofdifferentfloweringplantsthattheycanforageon,anddifferentsubstratesthattheycanusetoconstructnests.
Globally,wehaveseendramaticdeclinesofwildbees.InNorthAmericaalone,eightnativebeeshavebeenplacedontheendangeredspecieslist,sevenofwhicharemaskedbeesfromHawaii.Themostnotable,andonlybeetobefoundincontinentalNorthAmerica,istherustypatchedbumblebee.Formostbeestherearenostatusassessmentsandwehavemuchtolearn.Thereisnotonespecificcauseforwildbeedecline,ratherthedeclineswearewitnessingareacomplexinteractionbetweenmanydifferentfactors.Thesefactorsinclude:
1. Habitatloss2. Climatechange3. Invasivespeciesanddisease
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Bee conservation
104
bloom.Ifthetimingisoff,beesmayemergetooearlyortoolateandtheflowerstheyfeedonwillhavealreadyfinishedtheirbloomingcycle.Changesinemergenceofbothflowersandbeesismostdetrimentaltopollenandnectarspecialists.
Humanactivities,suchassubstantialmonoculturesandexpansiveagricultureandurbanization,impactthenaturalenvironmentmakingitdifficultforbeestofindenoughresourcestosurvive.Oneoftheeasiestwaystoreducethelossofwildbeesistoprovidenativefloweringplantsforthemtoforageon.Forotherwayswecanhelpnativebeesflourishcanbefoundinthe“KeepingtheBees”sectionofthisbooklet.
GlobalclimatechangeChangesintemperatureandrainfallcancauseproblemsforbees.Forexample,beesemergeatthesametimethattheirpreferredflowersstartto
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Bombusgriseocollis
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Introducedspeciesanddisease
Introducedbeeandplantspeciescancausemanyproblems.Non-nativeplantsandpollinatorsmayout-competenativespeciesanddrivewildspeciesawayfromtheirnaturalenvironments.Additionally,introducedspeciesofplantsandanimalsmaybringdiseasesthatcandecimatenativepopulationswhichlackresistancetotheseforeignpathogens.Exoticbeeandplantspeciescanspreadrapidly,outcompetingnativepopulations.
KatherineOdanaka
Theoblongwoolcarderbee(Anthidiumoblongatum)and thebird’sfoottrefoil (Lotuscorniculatus)areboth
introducedspecies.
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Beesandotherpollinatorsareessentialforthesurvivalofalmosteveryterrestrialecosystem.ItisestimatedthatthesesmallworkerscontributebillionsofdollarsworthofworktotheagriculturalsectorinNorthAmerica.Therearemanythreatstothesespecies,andmakingsurewedoeverythingwecantoconservethemisvitalfortheirpersistence.Helpingoursix-leggedneighboursisnotjustajobforscientistsandresearchers;everyonecanandshouldgetinvolved.HereweprovideinformationonafewwaysthatyoucansupportthenativebeesofNorthAmerica!
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grassprovidenofoodforpollinatorsandalsomakethedistancesbetweennestingandforagingareastoolargetosupportsomespeciesofbees.Onewaytohelpsolvethisproblemistoleavea“softedge,”ametreofun-mowedlawnalongtheoutskirtstoallowflowerstobloomandprovidebeeswithafoodsource.
PesticidecontrolHerbicidescankillplantsthatbeescanforageon.Fungicidestargetfungibutarealsoharmfultobees.Insecticidesareusedtokillinsectsandthesechemicalscanalsoaffectthenativebees.Theuseofherbicides,fungicides,andinsecticidesonlawns,gardensandcropsisunhealthyforeverymemberof
MowingChanginglawncarehabitsisoneoftheeasiestwaystosupportlocalbeespecies.Expansive,well-kemptlawnsmightlookappealingtosomelandscapers,butthishurtsthebeecommunityinmultipleways.Largetractsofmowed
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thecommunity:pollinators,plants,andotheranimals(includinghumans).Pleasedonotuseunlessabsolutelynecessarybecausetheykillinsects,includingbees.BeehotelsAsshowninthisfieldguide,manyofthenativebeespeciesinNorthAmericaconstructtheirnestsinpre-existingcavitiesorburrowintothesoftcentresofdeadwoodmaterials.Abeehotelissimplyacollectionofsuitablesticksforthesebeestocreatetheirnests.Drilledholesinuntreatedwood,stickswithpithycentres,andhollowedsticksofbamboocancreateagreatplaceforavarietyofbeestothrive.Beehotelsthrivewhenplacedinfullsunandprotectedwitharooftokeepthenestsdry.
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Examplesofbeehotels109
Wildflowergardens
Notonlyarewildflowergardensattractivetothehumaneye,theyhelptocreatebuffetsforbees.Especiallyinurbanareaswherefloweringplantscanbefewandfarbetween,patchesofflowerscanhelptomaintainbeepopulations.Someornamentalflowersareunabletobepollinatedbythenativebeepopulations,soitisimportantandmuchmorebeneficialtousewildflowersthatbloomnaturallyinthesurroundingarea.Thesegardensnotonlyprovidesustenance,butcanmakeanemptyspacemuchmorebeautiful.
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Wildflower garden
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Resources
GoBotany.NewEnglandWildflowerSociety,2018.gobotany.newenglandwild.org
HolmH.2014.PollinatorsofNativePlants.PollinationPress.
LadyBirdJohnsonWildflowerCenter.TheUniversityofTexasatAustin,2018.www.wildflower.org/plants/
Newcom L.1977.Newcomb’sWildflowerGuide.Little,BrownandCompany.
PlantsForAFuture.PlantsForAFuture,2012.pfaf.org/user/Default.aspx
WilsonJS&Carril OM.2016.TheBeesInYourBackyard.PrincetonUniversityPress.
111
IndexofpollinatorsandwildflowersPollinators
112
Agapostemon 43,57Agapostemon sericus 44Agapostemontexanus 44Agapostemon virescens 6,43Andrena carlini 23Andrena spp. 21,22,36,57,60Andrena vicina 24Andrena wilkella 23Anthidiumspp. 49Anthidium manicatum 49,50Anthidium oblongatum 50,106Anthophora 61Apis 25Apis mellifera 25Augochlora 43Augochlora pura 45Augochlorella 43Augochlorella aurata 46Augochloropsis 43Augochloropsis metallica 46Bandedsweatbee 40Beefly 19Beewolf 17Bicoloredstripedsweatbee 43Blueorchardbee 53,54
113
Bombus 14,26Bombusbimaculatus 27Bombusgriseocollis 27,28,105Bombusimpatiens 27,29Bombusperplexus 30Bombusspp. 14,26Bombusterricola 104Bombyliidae 19Brown-beltedbumblebee 27,28,105Bumblebee 9,11,14,26Calliopsis 58,60Cantharidae 19Cellophanebees 36,60Cerambycidae 20Ceratina calcarata 8,10,12,32Ceratina 32,55Chauliognathus pensylvanicus 19cleptoparasitic bee 7Coelioxys 61Colletes 36,60Colletes inaequalis 37Colletes validus 9,38Commoneasternbumblebee 27,29Crabronidae 17Cuckoobee 21,56Diggerwasp 17Dolichovespula sp. 18
114
EasternCarpenterBee 6Eucera 15,33,35Eucera pruinosa 15,33,35Europeanwoolcarderbee 50Flowerflies 16Greensweatbee 43Halictus 40Halictus confusus 41Halictus ligatus 40,41Halictus rubicundus 42Hemaris diffinis 17Holcopastites 58Honeybee 6,7,14,25Hoplitis 14,55Hornet 18Horn-facedbee 53,54Hummingbirdmoth 17Hylaeus 36,39Hylaeus modestus 39Laphria sp. 20Largecarpenterbee 10,11,31Lasioglossum 47,60Lasioglossum pilosum 15,48Lasioglossum tegulare 47Leaf-cutterbee 10,51,61Locustborer 20Long-hornedbee 33
115
Maskedbee 39Masonbee 53,55Megachile inimica sayi 52Megachile mendica 52Megachile rotundata 51Megachile sp. 5Megacyllene robiniae 20Melissodes 33,59Melissodes bimaculata 33Melissodes trinodis 34Miningbee 11,21,22,60Nomada luteoloides 7,58Nomada spp. 56,57Oblongwoolcarderbee 50,106Orangesunflowerbee 34Osmia 53Osmiacornifrons 10,53,54Osmialignaria 53,54Paperwasp 18Perplexingbumblebee 30Philanthus gibbosus 17Philanthus ventilabris 49Robberfly 20Sandwasp 17Smallcarpenterbee 8,10,32,55Smalldarksweatbee 47Soldierbeetle 19
116
Southernbronzefurrowbee 41
Sphecodes 60
Sphingidae 17
Squashbee 15,35
Sweatbee 11,59,60
Syrphidae 16
Systoechus vulgaris 19
Toxomerus germinatus 16
Triepeolus 59
Triepeolus donatus 59
Two-spottedlong-hornbee 33
Two-spottedbumblebee 27
Vespid wasp 18
Woolcarderbee 49
Xylocopa 31
Xylocopa virginica 11,31
Yellowjacket 18
Wildflowers
117
Agastachescrophulariifolia 103Apple 22Asclepias syriaca 80Asclepias tuberosa 64Asternovae-angliae 99Barbarea vulgaris 69Bird's-foottrefoil 50,77,106Blacklocust 20Black-eyedSusan 93Bloodroot 63Blueberry 30,38Bluevervain 78Butterflyweed 64Canadagoldenrod 94Canadahawkweed 95CanadienSt.John'swort 79Carolinaspringbeauty 65Chamaecrista nictitans 86Cirsiumdiscolor 82Claytoniacariliniana 65Commonboneset 96Commondandelion 66Commonmilkweed 80Commonsneezeweed 97
118
Commonstrawberry 67Coreopsislanceolata 70Cornus sericea 76Creepingphlox 70Crimsonclover 81Easterndaisyfleabane 98Echinaceapurpurea 72Erigeronannuus 98Eupatoriumperfoliatum 96Fieldthistle 82Foxglovebeardtongue 83Fragariavirginiana 67Gardenyellowrocket 69Geraniummaculatum 75Heleniumautumnale 97Helianthusannuus 34Heliopsis helianthoides 101Hieracium canadense 95Houstonia caerulea 73Hypericumcanadense 79Impatienscapensis 88Lanceleaf coreopsis 70Large-leavedlupine 71Liliumsp. 13Lotuscorniculatus 50,77,106Lupinus polyphyllus 71Maluspumila 22
119
Monardafistulosa 14,92Mountainmint 84NewEnglandAster 99Oxalisstricta 76Penstamon digitalis 83Phloxstolonifera 70Potentillanorvegica 85PurpleConeflower 72Purplegianthyssop 103Pycanthemum virginianum 84Quakerlady 73Redclover 100Red-oiser dogwood 74Rosablanda 87Roughcinquefoil 85Rudbeckia hirta 93Sanguinaria canadensis 63Sensitivepartridgepea 86Spottedjewelweed 88Smoothoxeye 5,101Smoothrose 87Solidago altissima 102Solidago canadensis 94Spiraea alba 91Spiraea tomentosa 89Spottedgeranium 75Steeplebush 89
120
Tallgoldenrod 102
Taraxacum officinale 66
Trifolium incarnatum 81
Trifolium pratense 100
Trifolium repens 90
Vacciniumcorymbosum 30,38
Verbana hasta 78
Whiteclover 90
Whitemeadowsweet 91
Wildbergamot 14,92Yellowwoodsorrel 76
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