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Orb Web
Weavers
Larinioides cornutus
Family Araneidae (typical
orbweavers) |
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 Larinioides
cornutus are usually provided for web-weaving experiments and science
projects where, for example, a student may want to investigate the effects
of chemicals on web building and structure.
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Products
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Juveniles |
Juvenile spiders, about 1-2 mm long without legs, tend to make
more regular webs take less space in environmental chambers. They only need
spaces about 6" in diameter for their webs and fed with fruit flies.
Small juvenile
Small juvenile
with cage
The cage is a clear PVC container, 6" in diameter and 2" deep.
1 dozen small
juveniles
1 dozen small
juveniles with 1 dozen cages
Orb web
experiment starter kit
The starter kit includes 12 spiders, 12 cages, fruit flies and
other supplies. |
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Adults |
The body length is approximately 1 cm. Adults need a larger
space, about 12-16" in diameter and the webs are stronger and easier to see.
They may also be fed with fruit flies, but will do better with houseflies and
other larger insects.
Adult female
Adult male |
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Preserved Specimens |
Preserved adult
female, in glycerin
Preserved adult
male, in glycerin |
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Description
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Larinioides cornutus is a common orbweaver,
frequently found near water in trees and bushes, under bridges or along road
guards. It is a relatively small and cryptic spider with an adult body
length of about 1 cm and camouflage coloring of different shades of light to
dark browns to black.
It is a very hardy
spider, which is easy to keep in captivity, readily adapts to wide variety
of conditions and is tolerant of mistakes.
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Hazards
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Larinioides are not hazardous
spiders. Like most spiders, they can bite and have venoms with
"pharmacologically active components". However, we do not know of any case
where their bites have caused serious problems and do not expect to hear of
anything more than mild local reactions or some local pain from bites.
Infection is possible. Any bites should be washed with soap and
water and protected with a non-occlusive wrapping (bandage that breaths).
Antibiotic ointments may also help to prevent the bite from becoming infected.
Some people may have allergic reactions to bites or may be
sensitive to dust and debris in the cages. Cages should be cleaned frequently,
particularly if they are kept at high humidity, which can promote the growth of
molds and fungi.
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