PINNING OF INSECTS

PRESENTED BY: HINA AMIR

Contents

Steps of insect collection

Equipments for pinning(description)

Pinning of different insects(order)

Arrangement

Steps of Insect collection

• Capturing by different techniques• Killing them by the help of killing jar• Relaxing insects• Pinning insects• Labeling insects• Storing insects

Why pinning required

• Before displaying --posture should be maintained• To avoid breakage• To demonstrate each part clearly• To make collection neat and clean

Equipments

“Insect Pins” for pinning Pinning block Spreading board Preserving or display boxes

Pinning of insects

Types of pins.Height of insect on pinsPosture of insect on pinWhere to pin Labeling etc

TYPES OF PINS• “Insect pins” should be used to avoid rust and

to adjust the insect properly• Insect pins come in various sizes ranging from 000 to 7• Smaller the no…… the thinner the pin. • Sizes 1-3 best size for most insects.

Height of insects

• All parts of insects should have uniform distance from the top of the pin.

• A good distance is 8-10 mm or about 2/3 or 1/4 of the way up the pin.

Pinning block

The use of a pinning block will help in obtaining proper height and positioning.

7.5 cm long and 2.5 cm wide

The first step is 0.6 cm high, the second 1.2 cm and the third 2.2 cm high.

Pinning block

Posture on Pins

• Legs and antennae should not be projected into lifelike positions.

• Legs should be tucked under the insect’s body • Antennae should be in horizontal manner

Pinning Small InsectsSmaller should be mounted on card points Card points are slender triangles of paper.With the help of glue attach the insect from

right side

Soft-bodied insects such as caterpillars, mayflies, silverfish and others cannot be pinned.

POINTING

Through the right side of the thorax with the wings spread.

Through the left side of the body with the wings folded

ORDER ODONATADRAGONFLIES AND DAMSELFLIES

Order Coleoptera:(Beetles)

• Pin through right elytra(wing)• Do not spread the wings

Order Orthoptera:Grasshoppers, katydids and crickets

Pin through the right side of the pronotum. Set only the wings on left side.

ORDER DIPTERA:FLIESORDER HYMENOPTERA: SAWFLIES, BEES,

WASPS AND ANTS

Pin through the right side of thorax, a little behind the forewings

In flies set wings with the front edges at 45° to the body.

HEMIPTERA:TRUE BUGS

• Pin through the V shaped shield (scuttelum), to the right of middle line

• Do not spread wings

Order Neuroptera:antlion, lacewings,and dobsonflies

Pinned through the right side of pronotumFirst margin of rear wings at right angle to the body

ORDER LEPIDOPTERA: BUTTERFLIES AND MOTHS

• Pin through right side of thorax

• Hind margin of front wing at right angles to the body

• Rear wing arranged so only a small notch between front and rear wings

ARRANGEMENT

1- place insect in the center of spreading board2- Place two strips of papers along both wings3- Raise forewing to adjust it perpendicularly4- Raise hind wing to reduce notch between

two wings.5- Support the abdomen with the help of pins by

making V shape below abdomen

SUMMARY

1. Gibb, T, J,. and Oseto, C. Y.(2006) Arthropod collection,and identification and identification(laboratory and field techniques) ISBN 13:978-0-12-369545-1 .United States of America- pp :53-65

2. Paulson, G. S., (2005) (Handbook to the constructin and use of insect collection and rearing devices) Springer Dordecht, The Netherlands - pp:92,93

3. Oman, P. W., and Cushman, D.,(Collection and preservation of insects)U.S. department of agriculture . pp:15-21

4. Borror, D. J., and White, R. E., 1970 (insects) Houghton Mifflin Company. New York. pp:4-15

References