CLOSED: Insect Identification

Indianapolis, IN

What in the world is this? It looks like a giant mosquito but has a three to four inch long hair protruding from it's abdomen.

Thumbnail by old_school
Sinks Grove, WV

This is a parasitic wasp in the family Ichneumonidae genus Megarhyssa. Their larvae feed on the larvae of wood-boring wasps in the family Siricidae, such as the pigeon tremex, using their long ovipositor to bore through wood to the tunnel(s) where the wood wasp larva is living. See http://www.cirrusimage.com/hymenoptera_ichneumon_megarhyssa_fem.htm and http://insects.ummz.lsa.umich.edu/Images/Hymenoptera/megarhyssa.html for images and more information.

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