COLLECTING AND STUDYING INSECTS
-prepared by Bastiaan M. Drees, Professor and Extension Entomologist
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Insects are and abundant and important class
of animals that often compete with man for resources and habitat.
Most insects, however, are not pests. Many species are extremely beneficial to man.
- Honeybees pollinate crops and provide honey and wax
- Silkworms provide silk
- Many people include insects as part of their diet.
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Insects serve as food for wildlife, including many
birds and fish. They are an important part of the food chain
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As natural enemies of insect pests, parasites and
predators keep pest populations in check
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The study of insects, called entomologv, has provided
much information about the process of evolution, genetics,
animal behavior, ecology and physiology (chemical processes).
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Methods of culturing/attracting insects for study (and profit!)
- Bee hives
- Ant farms
- Crickets, fish bait (catalpa moth caterpillars)
- Fruit flies and others
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Attracting insects: lights, carbon
dioxide, pheromones, butterfly gardens, etc.)
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Methods of collecting insects (NOTE:
regulations apply regarding collecting insects from state and federal parks
and endangered species. Be aware of no trespassing signs.)
- Hand picking or trapping in jars
- Traps
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Jars with the inside lips covered with
vaseline and mineral oil mixture
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Yellow sticky traps (colored cardboard or cup
coated with sticky substance like Tanglefoot®
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Pheromone or dry ice (carbon dioxide
attractant) lure traps
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Malaise traps (tent-like traps)
Insects fly into the netting
and fly up into the "tent" where they can be removed
by hand or with a collecting attachment.)
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Beating insects from resting perches onto
card board, cloth, insides of umbrellas, etc.
- Butterfly (aerial) nets, sweep nets, aquatic nets
- Vacuum devises and aspirators
- Light traps, "black" light traps
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Berlese funnel (light hung over a funnel in which
soil, litter is placed. Insects are forced to migrate
down into a jar of alcohol underneath the funnel)
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Methods of killing insects
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Killing jars charged with cyanide (old method),
ethyl acetate, nail polish remover or other toxicant
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Placing insects in containers (jars, plastic bags)
and freezing or heating (> 1350F) them
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"Pickling" soft-bodied insects
- Alcohol
- Preservative fluids (KAAD, etc.)
- Boiling or blanching larvae and then preserving them in alcohol
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Insecticides
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Preserving insects
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Dry storage of hard-bodied insects
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Tightly closing collection boxes containing
moth balls (paradichlorobenzine) or other toxicant
to prevent book lice or dermestid beetles
from eating specimens. Avoid moist storage conditions.
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Envelopes can store large numbers of
specimens in small spaces until ready for study or display
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"Shadow boxes" need no preservative as long as
insects are displayed in indirect light
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Liquid storage of preserved specimens in 70% alcohol or glycol
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Slide mounted insects
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Displaying insects
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Dried insects can be relaxed and mounted or re-mounted
on insect pins or in "shadow" boxes/
domes, etc. by placing dried specimens in a tight-fitting
box containing a moistened paper towel
for a few days. Fungal growth in the relaxing chamber can be
prevented using a disinfectant
substance like Lysol®, "relaxing fluid" or
chlorocresol (sold commercially). Dried insects are
brittle. Care should be taken to avoid jarring them.
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Mount insects according to conventions described in
entomology text books or other literature
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Sunlight causes most insect colors to fade.
Only insects that produce colors by prism effects caused by
their exoskeletons (bodies) or scales do not fade over time.
SOURCES OF SUPPLIES FOR MAKING INSECT COLLECTIONS
American Biological Supply Company, 1330 Dillon Heights Ave., Baltimore, Maryland 21228
BioQuip Products, Inc. 2321 Gladwick Street, Rancho Dominguez, CA 90220
Phone: (310) 667-8800 Fax: (310) 667-8808 email: info@bioquip.com
web: www.bioquip.com
Great Lakes IPM, 10220 Church Rd., NE, Vestaburg, Michigan 48891
The Butterfly Company, 51-17 Rockaway Beach Boulevard, Far Rockaway, New York 11691
INSECT REFERENCES FOR THE BEGINNER
General:
The Insects Peter Farb. 1962. 192 pp. Life Nature Library,
Time, Inc., New York.
The Common Insects of North America
L. A. Swan & C.S. Papp. 1972. 750 pp. Harper & Row,
Publishers, New York.
How to Know the Insects R.G. Bland & H.E. Jacques.
1978. 409 pp. Wm. C. Brown Company, Dubuque,
Iowa.
An Introduction to the Study of Insects
D.J. Borrer, C.A. Triplehorn & N.F. Johnson. 1989. 875 pp.
Saunders College Publishing, Philadelphia.
Field Guides:
The Audubon Society Field Guide to North American Insects and Spiders.
L. Milne & M. Milne. 1980.
989 pp. Alfred A. Knopf, New York.
Golden Guide Series. H.S. Zim, Editor.
Peterson Field Guides. R.T. Peterson, Editor.
Simon & Schuster's Guide to Insects. R.H. Arnett, Jr. &
R.L. Jacques, Jr. 1981. 512 pp. Simon & Shuster, New York.
The information given herein is for educational purposes
only. Reference to commercial products or trade names is made
with the understanding that no discrimination is intended and
no endorsement by the Cooperative Extension Service is implied.
Educational programs conducted by the Texas Agricultural
Extension Service are open to all people without regard to race,
color, sex, disability, religion, age or national origin.
BMD-3/94
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Last modified: March 18, 1998