So fixed was its instinctive knowledge that its safety depended on its immovability, that it allowed me to pick it up and replace it among the ants without making a single effort to escape.

This species closely resembles a green leaf."[70] Caterpillars also exhibit a considerable amount of detailed resemblance to the plants on which they live.

Grass-feeders are striped longitudinally, while those on ordinary leaves are always striped obliquely.

Some very beautiful protective resemblances are shown among the caterpillars figured in Smith and Abbott's _Lepidopterous Insects of Georgia_, a work published in the early part of the century, before any theories of protection were started.

The plates in this work are most beautifully executed from drawings made by Mr.Abbott, representing the insects, in every case, on the plants which they frequented, and no reference is made in the descriptions to the remarkable protective details which appear upon the plates.