leaf butterfly

noun

any of various butterflies of the genus Kallima, of southern Asia, the East Indies, and Australia, having wings that resemble dead leaves.

Origin of leaf butterfly

First recorded in 1880–85

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

For example, many animals such as the quail, the rabbit, or the leaf-butterfly are protectively colored.
Being Well-Born
Michael F. Guyer