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Orgyia leucostigma, the white-marked tussock moth, is a moth in the family Erebidae.The species was first described by James Edward Smith in 1797. The caterpillar is very common especially in late summer in eastern North America, extending as far west as Texas, California, and Alberta.
The forest tent caterpillar moth (Malacosoma disstria) is a moth found throughout North America, especially in the eastern regions. Unlike related tent caterpillar species, the larvae of forest tent caterpillars do not make tents, but rather, weave a silky sheet where they lie together during molting.
As caterpillars, they have a wide range of color phenotypes but show consistent adult coloration. [3] With a wide geographic range throughout Central and North America, H. lineata is known to feed on many different host plants as caterpillars and pollinate a variety of flowers as adults. [4] [5]
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Eupackardia calleta ranges across southern Texas, Mexico, Guatemala, Arizona, and New Mexico. [2] In the southeastern mountains of Arizona they are mostly seen from July to August. In central Arizona to Mexico they are seen from October to January, and in South Texas they are seen from September to November as well as March to April. [4]
Young buck moth caterpillars are completely black in color with the spiracles (these are small holes that act as an opening to their respiratory system) appearing as pale brown color with a black edge. [9] [10] On the other hand, the more adult/older caterpillars appear a lot lighter than the youth with some even looking to be white in ...
The caterpillars appear humpbacked, having a small head, swollen first and second abdominal segments, and a last abdominal segment which is tapered and rounded. They are dark green with yellow stripes along the top and sides of the body, and have two black tubercles on the top of the thorax .
Immediately after feeding the caterpillars return to the tent and aggregate in sunlight to facilitate the digestive process. Thus, eastern tent caterpillars are central place foragers. In contrast, the forest tent caterpillar is a nomadic forager that establishes a series of temporary resting sites during the course of its larval development.