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Ichneumonid wasp - Ichneumonidae
Identifying natural enemies > parasitoids > ichneumonidae
Adults: Black body, light legs. Long antennae. Abdomen is longer than head and thorax combined. Long ovipositor (females). Length 6-26 mm (commonly - may be larger).

Eggs: Deposited on or in host larvae or pupae.

Larvae: One or many per host.

Pupae: Occur inside the host body (one larva per host) or outside the host body (multiple larvae per host). Multiple cocoons may be visible on or near host.

Diet: Common hosts include armyworms and European corn borer.

Braconids and Ichneumonids can be confused. Both groups are completely beneficial parasitoids.		 Ichneumonid wasp adult
 
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This information was developed for the publication Identifying Natural Enemies in Field Crops by Mary Gardiner, Christina DiFonzo, Michael Brewer and Takuji Noma, MSU Extension bulletin E2949.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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12/21/06