banded tussock moth caterpillar on oak leaf, in sun

arthropod back banded black branch bristles bristly bug bugs bushy caterpillar crawl furry fuzzy hairy halysidota insect insects larva leaf lepidoptera moth oak pileous piliferous plant poison poisonous shaggy slither slithering spines spiny stubbly sunlit sunny tessellaris tufted tufts tussock whiskered white woolly