资料来源 : Webster's Revised Unabridged Dictionary (1913)

Ortalidian \Or`ta*lid"i*an\, n. (Zo["o]l.)
   Any one of numerous small two-winged flies of the family
   {Ortalid[ae]}. The larv[ae] of many of these flies live in
   fruit; those of others produce galls on various plants.