7/23/2019 Beetles Keys

1/1

1st abdominal segment divided by

hind coxae {concealed in Haliplidael

Carabidoe, p. 152

Cicindelidae, p. 151

Dytiscidoe, p. 154

Haliplidae, p. [ 52

Gyrinidae, p. 154

Omophronidae, p. 152

Rhysodidae,

p.

5

Antennae threadlike or

beadlike

Head nearly or quite concealed

by pronotum from dorsal view

Chrysomelidae, p. 198

I Lampyridoe, p. 162

Anthicidae, p. 181

Mordellidae, p. 185

Lycidae, p. 163

Elmidae, p. 172

Dascillidae, p.

17 0

Helodidoe, p. 170

Leptodiridae, p. 158

Eucnemidoe, p. 168

Throscidoe, p. 168

Ptinidoe, p. 188

Mandibles directed downward

or posteriorly

Pronotum keeled laterally

Head with

beak or snout

Curculionidae, p.

20 2

*Bruchidae, p. 200

Anthribidae, p. 202

Brentidae, p. 201

Salpingidae, p. 182

Antennae with a distinct club of

various kinds Bo next page)

No abdominal segments

exposed beyond FW

Antennoe serrate, pectinate,

or plumose

Elateridae, p. 166

B uprestidae,

p. 169

Lampyridae, p. 162

*Mordellidae, p. 185

Lycidae, p. 163

Ptilodactylidae, p. 170

Rhipiphoridae, p. 184

Pyrochroidae, p. 183

Eucnemidae, p. 168

Throscidae, p. 168

Heod not concealed from dorsal view

Mandibles directed anteriorly

Tenebrionidae, p. 186

Cantharidae, p. 162

Alleculidae, p. 187

Cucujidae, p. 176

Daseillidae, p. 170

Lagriidae, p. 186

Salpingidae, p. 182

Key to the Principal Families of Coleoptera

t h e

most common families

less common families

no symbolleost common

I st abdominol segment not divided 6y

hind coxae

Head lacking beak or snout

Antennae threadlike, serrate,

or otherwise, and

ot

dubbed

I or more complete abdominal

segments visible beyond FW

Staphylinidae

.

60

*Bruchidoe, p. 200

Scaphidiidae, p. 159

Pselaphidae, p. 160

Rhipiphoridae,

p.

18 4

Malachiidae, p.

6

Dasytidae, p. 164

Chrysomelidae, p. 198

Cerambycidae, p. 196

Tenebrionidae, p,

186

Cantharidae, p. 162

Melandryidae, p. 188

Lycidae, p. 163

Helodidae, p.

17 0

Dasytidae, p. 164

Psephenidae, p. 172

Pranotum

rounded laterally

Chrysamelidae, p. 198

Cerambycidae, p. 196

Meloidae, p. 184

Anthicidae, p. 181

Cleridae, p. 16 5

Euglenidae, p.

181

Pediiidae, p. 183

Mandibles directed forward

Tenebrionidae,

p. 186

Hydrophilidae, p. 156

Cucujidae, p, 176

Languriidae, p. 17 5

Silphidae, p. 15 8

Erotylidae, p. [ 76

Derodontidae, p. 174

Silvanidae, p. 178

Colydiidae,

p. 180

Mycetophagidae, p. 101

Scorabaeidae, p. 192

Lucanidae, p. 190

Passalidae, p. 191

Sandalidae, p. 166

Ostomidae, p. 164

Cleridae, p. 165

Heteroceridae, p. 172

No abdominal segments exposed

beyond FW

Very compact, nearly or quite

sphericol from dorsal view

Coccinellidoe, p. 180

Chrysomelidae, p. 198

Dermestidae, p. 164

*Erotylidae,

p 17 6

*Hydrophilidae, p. 156

*Nitidulidoe, p. 177

*Phalacridae, p. 178

Leiodidae, p. 158

Byrrhidae, p. 173

Anobiidae, p. 188

Head not concealed from dorsal view

Antennal club asymmetrical

*Hydrophilidae,

p. 156

*Silphidae, p, 168

Ostomidae, p. 164

Psoidae, p. 190

Dryopidae, p. 172

Elmidae, p. 172

Heteroceridae, p. 17 2

Cleridae, p. 165

Pronotum not narrower than

FW at base

Antennal dub symmetrical

Pronotum narrower than FW at base

*Cucujidoe, p. 176

Derodontidae, p. 7

Cleridae, p. 165

Lathridiidae,

p.

17 8

Lyctidae, p

190

Mandibles directed downward

Chrysomelidae, p. 198

Hydrophilidae, p. 156

Anthicidae, p. 181

Erotylidae, p. 176

Throscidae, p. 168

Mycetophagidae, p. 181

Cryptophagidae, p.

17 5

Mycetaeidae, p. 179

Endomychidae, p. 180

Leptodiridae, p.

158

Key to the Principal

Familias of Coleoptera contd.)

Last 3 or 4 or more) antennal seg-

erminal antennal segments

ments markedly prolonged laterolly

ot prolonged laterally

1 or more abdominal segments

visible beyond FW

Staphylinidae, p. 160

*Nitidulidae, p. 177

*Histeridae, p.

15 6

*Silphidae, p. 158

*Bruchidae, p. 200

Pselaphidae, p. 160

Scaphidiidae, p. 159

Monotamidae, p. 174

Elongate or linear, not spherical

from dorsal view

Heod nearly or quite concealed

6y pronatum from dorsal view

Chrysomelidae, p. 198

Dermestidae, p. 164

*Mordellidae, p. 185

*Anthicidae, p. 181

Anobiidoe, p. 188

Bostrichidae, p. 189

Cisidae, p. 164

Scolytidae,

p.

204

Mycetophagidae, p. 181

Leptodiridae, p. 158

Byturidae, p. 178

Throscidae, p. 168