Hog caterpillar

(Zool.) the larva of the green grapevine sphinx; - so called because the head and first three segments are much smaller than those behind them, so as to make a resemblance to a hog's snout. See Hawk moth.

See also: Hog

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