Y moth

(Zool.) a handsome European noctuid moth Plusia gamma) which has a bright, silvery mark, shaped like the letter Y, on each of the fore wings. Its larva, which is green with five dorsal white species, feeds on the cabbage, turnip, bean, etc. Called also gamma moth, and silver Y.

See also: Y

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.