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Wooley Bear Caterpiller - Isabella Tiger Moth
Arctiidae
Pyrrharctia isabella
Type: Insect

Effect: Neutral
Thunder
Thunder

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Arctiidae Family
Pyrrharctia Genus


Location / Where this Creature is found:

This moth is found throughout the United States and in parts of Canada and Mexico.

Description

Wingspan 1 5/8-2" (40-50 mm). Fore wings yellow-brown with a series or row of small black dots. Hind wings slightly paler, slightly pinkish with several indistinct gray dots. Abdomen has 3 black spots above on rear edge of each segment. Caterpillar, to 2 1/8" (55 mm), is black, covered with stiff bristles, and has a broad band of red-brown bristles around the middle.
The adult moth is dull yellow to orange with a robust, furry thorax and small head. Its wings have sparse black spotting and the proximal segments on its first pair of legs are bright reddish-orange.

The banded woolly bear larva emerges from the egg in the fall and overwinters in its caterpillar form. It survives winter freezes by producing a cryoprotectant in its tissues. Once the weather warms, the larva devours all the grass and weeds it can, pupates, and becomes an adult, which then lives through the summer. It is the larvae of this species which are the subject of common folklore, which has it that the forthcoming severity of a winter can be predicted by the amount of black on the caterpillar; this is the most familiar woolly bear in North America. But in fact, larvae produced in the same clutch of eggs can vary from mostly red to mostly black, even when reared under the same conditions, and this variability invalidates any actual temperature-related trends that may otherwise be evident. In fact, the orange band will grow towards the ends of the body, with the black bands decreasing in size, as the larva matures

General information about Wooley Bear Caterpiller - Isabella Tiger Moth :

Folklore of the eastern United States and Canada holds that the relative amounts of brown and black on the skin of a woolly bear caterpillar (commonly abundant in the fall) are an indication of the severity of the coming winter. It is believed that if a woolly bear caterpillar's brown stripe is thick, the winter weather will be mild and if the brown stripes are narrow, the winter will be severe. In reality, hatchlings from the same clutch of eggs can display considerable variation in their color distribution, and the brown band tends to grow with age; if there is any truth to the aphorism, it is highly documented
The annual Woollybear Festival occurs each October in Vermilion, Ohio. The family event, started in 1973, features a woolly bear costume contest in which kids, even pets, are dressed up as various renditions of the woolly bear caterpillar.
There also is an annual Woolly Worm Festival that occurs in Beattyville, Kentucky. It started in 1987, and features many food booths, live music, a "Woolly Worm Race" in which people race the Woolly Bear caterpillar up vertical strings.
There is also an annual Woolly Worm Festival that occurs in Banner Elk, NC. It began in 1977 and celebrated its 30th anniversary in 2007. The festival includes booths with crafts, food, and races. The winning Woolly Worm predicts the winter weather for the following winter.






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Wooley Bear Caterpiller - Isabella Tiger Moth


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