a. and sb. [ad. mod.L. Lithosiid-æ (see below), f. generic name Lithosia (Fabricius), f. Gr. λίθος stone + -IA1. See -ID.]
A. adj. Pertaining to the family Lithosiidæ of bombycid moths, called footmen. B. sb. A moth of this family; a footman (Cent. Dict.).
1863. Bates, Nat. Amazons, xii. (1864), 414. The moth is of a dull slaty colour, and belongs to the Lithosiide group of the silk-worm family (Bombycidæ).