This page has now been replaced by a page of
caterpillars
of northern Illinois, which contains more photos, which are of better
quality than the ones on this page.
Chain O' Lakes park
is an area with woods, open fields and lakes about ten miles west of where
I was living in the appropriately named Lake County.
On the day that I
was there, I was lucky enough to come across three caterpillars which are
definitely more interesting than what comes to mind when most people think
"caterpillar".
The first one, the
caterpillar of the
Great
Spangled Fritillary butterfly, couldn't have been easier to spot, crossing
a wide-open sealed path in bright sunlight.
This caterpillar
eats only plants in the violet family.
Of course, if you're
as well armed as this fellow, you can walk around whenever and wherever
you want! Take a close look and you'll see that it even has
spines on its spines! And no, I didn't check if the spines
are sharp - people think that caterpillars are innocuous little critters,
but in fact many of them are very toxic and can make you pay for messing
around with them, even if you don't eat them.
This Virginia Ctenuchid moth caterpillar is so hairy that you can hardly tell
which end is the front and which is the back, but just in case you were
wondering, I think the head is on the left hand side.
The picture above
is a view from the top, this one is a view from the side. You
can see that it's got a couple of bright white racing stripes on either
side.
Here's my favorite one, an Eastern Tent caterpillar. They're called
tent caterpillars because when the young hatch from their eggs they gather
together in the branch of a tree and spin a tent out of silk, which they
use as protective housing. The Eastern Tent caterpillar is
very attractive, but it's one of the most destructive caterpillars in America,
capable of stripping trees completely bare.
It almost looks
like a lion with a shaggy mane! Its eyes seem like they're
made of black velvet, not like ordinary insect eyes at all.