- any of numerous wasplike insects of the family Ichneumonidae, the larvae of which are parasitic on caterpillars and immature stages of other insects.
Origin of ichneumon fly
Examples from the Web for ichneumon fly
Historical Examples of ichneumon fly
The ichneumon-fly lays its eggs under the skin of the caterpillar.
She lets loose an army of worms upon the forests, and then sends an ichneumon-fly to check them.Under the Maples
The ichneumon-fly lays eggs under the skin of the caterpillar.The Churches and Modern Thought
What of the infinite goodness of God in teaching the grub of the ichneumon-fly to eat up the cabbage caterpillar alive?
A large Ichneumon-fly has been found hunting after the worms, and is considered their natural enemy.American Pomology
J. A. Warder
- any hymenopterous insect of the family Ichneumonidae, whose larvae are parasitic in caterpillars and other insect larvae