ichneumon fly

or ich·neu·mon·fly

[ ik-noo-muh n-flahy, ‐nyoo‐ ]
/ ɪkˈnu mənˌflaɪ, ‐ˈnyu‐ /


any of numerous wasplike insects of the family Ichneumonidae, the larvae of which are parasitic on caterpillars and immature stages of other insects.

Words nearby ichneumon fly

Origin of ichneumon fly

First recorded in 1705–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ichneumon fly

British Dictionary definitions for ichneumon fly

ichneumon fly

ichneumon wasp


any hymenopterous insect of the family Ichneumonidae, whose larvae are parasitic in caterpillars and other insect larvae
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012