Hickory Tussock Moths are active in the daytime. They are found in deciduous woods in a range that runs diagonally across the continent from northeast to south-central—from Nova Scotia and Ontario to Texas and a bit west, nicking Wisconsin. After a male and female find each other in late spring, large masses of eggs (from 50 to several hundred) are deposited on the undersides of leaves. Often, when eggs are laid en masse, the resulting caterpillars also feed en masse. HTMs are leaf skeletonizers (they eat the green stuff in-between the leaf veins).