Encore Appearance

I’m not a big fan of winter, to say the least. If autumn just graded back into spring I wouldn’t dread its coming so much. But as the situation is where I live, it signals the end of the lively summer and ushers in the comparatively lifeless season of cold and snow. This was on my mind when I went for a walk a few weeks ago.  I wasn’t expecting to see any more insect life to speak of this season when I came across dozens of these beautiful Virginia Ctenucha Moth (Ctenucha virginica) caterpillars on a trail in the Biocore Prairie.

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It was already the first week of November and I had it in my head that as far as invertebrates go, 2018 was a wrap and in the can. I guess that warmish day was enough to entice them out for some last-minute feeding before they bedded down for the winter.

Different species of butterflies and moths overwinter in different stages of development depending on the species. Some hide out in the adult form, some form a pupa to while away the seasons. Still others, like this species of day-flying moth overwinter in the larval stage huddled under leaf litter or another safe place. When the weather is amenable they will become mobile again.

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The well-known Wooly Bear caterpillar like this one I found near the trail full of  Ctenuchas is another species that spends winter as a caterpillar. It’s the larva of the Isabella Tiger Moth and, no, the width of its brown stripe has nothing to do with predicting the severity or length of the coming winter. Sorry. I’ve found them running around at the end of December and if I remember correctly it didn’t feel particularly warm when I did.

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The adult Virginia Ctenucha moth is quite eye-catching and a treat to find flying around the prairie. It has beautiful dark wings that set off its golden orange head and metallic blue body.

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I photographed the individual above hanging upside down on common milkweed for a while before I realized it was dead, possibly the victim of an ambush bug that had already fled the scene of the crime. It did give me the opportunity to see that stunning blue body better.

I returned to the same location of the caterpillar party the next day and again found the multitude of yellow-and-black beauties crawling around and munching on grass, but the day after that I could only locate one. Still, the whole experience was a good reminder that despite some appearances, there is still life out there, just waiting for the right time to get busy again carrying on.

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