Caterpillar Parts Viz |top| -

"Now look here, viz. the prolegs —stubby, unjointed fleshy protrusions on segments three through six, plus the last segment. See the tiny hooks? Crochets . They act like Velcro, anchoring the animal to silk pads or rough bark. Without them, it would fall at the first breeze."

The Specs of the Specimen

"Along the abdomen, viz. a row of tiny dots— spiracles . Air enters here, travels through tracheal tubes, and delivers oxygen directly to the tissues. No lungs. No blood circulation for gas exchange. Just plumbing." caterpillar parts viz

"And lastly, viz. the anal prolegs and the terminal opening. Waste exits as frass —those little dark pellets. Curiously, some caterpillars fire their frass meters away to hide their scent from predators." "Now look here, viz

"Three segments behind the head. Each bears a pair of jointed true legs , complete with a tiny claw. These are the caterpillar's only permanent appendages. Watch how it uses them to grip a stem—like a mountaineer on a cliff." Crochets