Post on 14-Jun-2015
transcript
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