With the first day of fall officially come and gone, it is now time for autumn leaves, falling acorns, migrating geese and surprisingly enough caterpillars. More than a few species are searching around for places to hole up and pupate over the winter until the arrival of spring when they can emerge as butterflies or moths beginning the cycle of reproduction all over again.
A few years ago, I was sweeping off the driveway when I spotted what at first appeared to be a walking green cigar. This proved to be a Polyphemus caterpillar nearly three inches long. He was moving along at a pretty good clip but fortunately I was able to grab a ruler and snap a decent picture of him. The Polyphemus moth (which he will eventually metamorphose into) is a large nocturnal moth with large eye spots on both wings. Named after the legendary cyclops, these moths are rarely seen but I was fortunate enough to discover one of their offspring.
These caterpillars are harmless, except to tree leaves, relying on their green coloration to hide them from predators looking for fat juicy bugs to nom. Others, like the monarch caterpillar, rely on a foul taste to deter predators, sporting bright colors to warn off anyone looking for a meal. Yucky but harmless.
But there are other caterpillars which are not quite so harmless. Many, like the gypsy moth caterpillar, are covered with irritating hairs which can produce rashes on susceptible people. Tussock caterpillars, like the one pictured below, also have irritating hairs which can cause problems for the sensitive, though they are not really that poisonous.
While these insects may be interesting to look at, it is best to just look and not touch.
But the one you absolutely, positively should not touch under any circumstances is the flannel moth caterpillar. Like the one below they look strangely like a toupee someone has lost. But don’t be fooled.
These silly looking creatures sport highly poisonous stinging hairs which contain venom producing an unpleasant result if you are unfortunate enough to get stuck by one. Many people report it feels worse than a bee or wasp sting causing intense pain for the unlucky victim. Some are sensitive enough so they have wound up in the emergency room. I have not come across any references to fatal allergic reactions but the potential is always there. Look but don’t touch!
For those who are wondering what the coming winter may bring, some may take a look at the wooly bear caterpillar.
While this fellow sports stiff body hairs, the wooly bear is not toxic in any way. If you disturb them, they will curl up into an innocuous looking ball and lie still until it thinks the coast is clear. For some reason people have seized upon these little critters as a way to forecast the weather. If the brown band is wide, it foretells a mild winter. If it is narrow, then a rough winter is on the way. At the risk of bursting people’s bubbles, studies have not borne this out. In fact, I have seen wooly bears in the same year with differing widths in their brown bands. So unless you want to make out that one of them is a fibber, the caterpillars are a better sign that winter is just simply on the way than as to what kind of winter it will be.
So what is a good sign a cold winter may be on the way? Why, union suits pulled from storage and stuck out on the line to air out in preparations for blustery conditions of course! What else? Just a different kind of wooly.
Happy fall!