INSECTS and SPIDERS

Spectacularly diverse, often colorful
classes of animals, some much beloved,
that play such significant, but often
overlooked roles in our lives. Presented in
magnificent closeups with detailed texts.

CAMOUFLAGE, MIMICRY & COLORATION
How color patterns protect fragile insects from predators. Camouflage, mimicry and protective coloration. 2 programs. 40 slides. Extensive guides.
EP #453X SLIDES
$72.50

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SAVE $12.50 ON 2 SLIDE SET BUNDLE ORDER EP #453X.....$72.50
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CAMOUFLAGE AND MIMICRY IN INSECTS Order #453..........$42.50

Illustrates and explains camouflage, mimicry and Batesian mimicry in the insect
world. Teaches students to be observant. Impressive close-up photos include a noctuid
moth, geometer moth, band-winged grasshopper, anglewing butterfly, broad-winged
katydid, walkingstick, thornbug, brown lacewing larva, caddisfly larva, toad bug, ambush
bug, crab spider, sphinx moth, viceroy and monarch butterflies, clear-winged moth,
syrphid flies, robber fly. 20 slides and guide.

CONTENT SAMPLE: 21046 Here we see a creature which for obvious reasons is
known as the walkingstick (family Phasmatidae). Many well-camouflaged insects occasionally
give away their presence by their movements. Walkingsticks, however, go into a motionless
trance during the day and often appear as though they are dead, even when being handled. The
technique of playing dead is employed by a number of other insects and is often a successful
means of defense because many predators will only eat live food. After nightfall, the walking
sticks come out of their lethargic stupor to feed on the leaves of trees. A few species are able to
change colors slightly, becoming lighter during the day.

Walking sticks are members of a large order, the Orthoptera, which includes grass-
hoppers, katydids, crickets and praying mantis.

REVIEWS: “...the slides are well chosen. A unique feature of the Batesian segment is
that the mimic and model are shown on the same slide, enabling...easy comparisons. Teachers
and naturalists...will find the program useful.” Previews.
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PROTECTIVE COLORATION AND MIMICRY Order #454........$42.50

Protective coloration protects an animal because predators are limited in the
time they can spend searching for prey. Mimicry protects an animal because predators
cannot afford to waste effort sampling objects unlikely to be edible. Both phenomena are
illustrated and described in detail. With a comprehensive discussion of the evolution of
mimicry and protective coloration, the adaptive responses of predators to mimics and
cryptic prey, and recent scientific advances in understanding these systems. 2O slides
and guide.

REVIEWS: "The quality of each slide is outstanding...definitely recommended for
academic high school and college level biology classes." Previews.
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~0072-014~ Stick caterpillar. photo by Charles R. Belinky, Ph.D.

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