The milkweed butterfly larvæ on milkweed,

The potato beetle on potato vines,

The eastern swallow-tail butterfly on parsnip or carrot plants,

The tussock-moth on horse-chestnuts,

The promothea moth on lilac bushes,

The cabbage-butterfly on cabbage or mustard plants,

The red-spotted purple, banded purple, and viceroy butterfly larvæ on willow and alder,

Cocoons of tussock-moth and tiger-moth under bark, logs, and rubbish in early autumn.

Larvæ of the emperor-moth (cecropia) may be found wandering about, apparently aimlessly, in September; but they are searching for suitable places for attaching their cocoons to orchard and forest trees.

After the leaves have fallen from shrubs and trees, cocoons can be found more easily on the naked twigs or in withered, rolled-up leaves that are fastened by the silk of the cocoon to the branches.