hickory tussock moth caterpillar

allergic america and aposematic awareness back biodiversity bug caryae caterpillar chemical close coloration connecticut control dangerous defense england gardening hairs halisidota handle harmful hickory identification indicates insect irritating lophocampa moth nature new north nuisance painful pattern pest poisonous protection reaction setae spring sting summer that this tiger touch toxic tussock venomous warning wildlife yard york