Evaniidae Cuckoo Wasp Chrysididae Potter Wasp Eumenidae Occasionally certain parasitic wasps may become a nuisance when found in homes or simply cause concern when single individuals are found. Actually nuisance parasitic wasps are very beneficial to humans since they parasitize many different kinds of harmful insect pests. They live outdoors and are usually accidental indoor invaders, often attracted to lights. They cause no harm to humans, pets, structures, possessions or crops. However, some Ichneumon wasps can sting severely when mishandled.
Legs are long and slender.
This wasp is about one inch or more, reddish-brown, slightly marked with black and red with brown spots in the wings. These insects parasitize the larvae of pigeon tremex or horntails. Wasp larva that hatches from the egg feed internally, slowly devouring the weevil larva. This parasitoid, not available commercially, occurs virtually everywhere in alfalfa fields. They parasitize certain caterpillars and white grubs.