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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Aulacid, Ensign, and Gasteruptiid Wasps (Evanioidea) » Carrot Wasps (Gasteruptiidae) » Gasteruption » assectator or kirbii (Gasteruption assectator or kirbii)
Photo#787043
Gasteruption ? - Gasteruption - female
Copyright © 2013 John Lampkin

Gasteruption ? - Gasteruption - Female
Kakiat Park, Suffern, Rockland County, New York, USA
June 15, 2013
It took me a while to arrive at Gasteruption because I had assumed Ichneumonidae and was misled by pages of superficially similar species like this:
.
I've learned then that one quick check in the field then is to check for a pronounced neck. Gasteruptids have, Ichneumons don't.
Gaster-up?! Taxonomists just want to have fun, eh?
Other images of this individual show the face, the back, and the bristles on the tibia near the tarsal joint if that will help to take it to species.
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Contributed by John Lampkin on 16 June, 2013 - 9:45am
Last updated 4 August, 2014 - 8:29pm

Moved
Moved from Gasteruption.
… Aaron Schusteff, 4 August, 2014 - 8:29pm login or register to post comments

Narrowing species possibilities
From the relatively short ovipositor (i.e half the wing length or less) this can be narrowed down to one of G. assectator, G. kirbii, or G. amputatum. The last of those can be eliminated since it has a white tip on the ovipositor and its range is southern Arizona into Mexico. If you can carefully measure the length-to-width ratios of the 2nd hind tarsus and the 4th antennal segment...and can consistently correlate that with the sheen (shining or matte) of the head...you may be able to get to species (for details, see here).
… Aaron Schusteff, 4 August, 2014 - 8:27pm login or register to post comments

Nice find, John.
First time I saw one, it looked like an airborne thread. Good work on solving the depth of field problem! I think you should post the other images.
… Ron Hemberger, 17 June, 2013 - 1:47am login or register to post comments

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