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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
“Insect Pins” for pinning Pinning block Spreading board Preserving or display boxes
Pinning of insectsTypes of pins.Height of insect on pinsPosture of insect on pinWhere to pinLabeling etc
• “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.
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.
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
Smaller should be mounted on card pointsCard 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.
Through the right side of the thorax with the wings spread. Through the left side of the body with the wings folded
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.
Pin through the right side of thorax, a little behind the forewingsIn flies set wings with thefront edges at 45° to thebody.
• Pin through the V shaped shield (scuttelum), to the right of middle line• Do not spread wings
Order Neuroptera: antlion, lacewings,and dobsonfliesPinned through the rightside of pronotumFirst margin of rear wingsat right angle to the body
• 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
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
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 :53-652. Paulson, G. S., (2005) (Handbook to the constructin and use of insect collection and rearing devices) Springer Dordecht, The Netherlands - pp:92,933. Oman, P. W., and Cushman, D.,(Collection and preservation of insects)U.S. department of agriculture . pp:15-214. Borror, D. J., and White, R. E., 1970 (insects) Houghton Mifflin Company. New York. pp:4-15