Source : Webster's Revised Unabridged Dictionary (1913)

Lithosian \Li*tho"sian\, n. [From NL. Lithosia, the typical
   genus, fr. Gr. li`qos a stone, a rock.] (Zo["o]l.)
   Any one of various species of moths belonging to the family
   {Lithosid[ae]}. Many of them are beautifully colored.