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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Chalcidoid Wasps (Chalcidoidea) » Pteromalid Wasps (Pteromalidae) » Pireninae » Gastrancistrus
Photo#105080
Small Wasp? - Gastrancistrus - female
Copyright © 2007 David E. Reed

Small Wasp? - Gastrancistrus - Female
Chanhassen, Carver County, Minnesota, USA
April 22, 2007
Size: 2.3mm
I rescued this little creature from the water and photographed it as it dried its wings while perched on my finger. I need an ID please.
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Contributed by David E. Reed on 23 April, 2007 - 10:20pm
Last updated 29 May, 2014 - 7:50pm

Moved
Genus confirmed by Dr. Steve Heydon.

Moved from Pteromalids.
… Bob Carlson, 29 May, 2014 - 7:50pm login or register to post comments

Moved
My torymid contact believes this to be a pteromalid, suggesting that it may be the genus Gastrancistrus.

Moved from Torymidae.
… Bob Carlson, 29 May, 2014 - 2:59pm login or register to post comments

Moved
Moved from Chalcid Wasps.
… David E. Reed, 5 August, 2009 - 11:48am login or register to post comments

Torymidae…
Fortunately there are other features that help to distinguish these two groups. One is very swollen hind coxae which can be seen here. The elongate metallic green/bronze body, extruded ovipositor (length can very), long antennae, swollen hind femurs, and well-formed parapsidal sutures also indicate a female torymid wasp. Nice photo David.

See reference here.
… Ross Hill, 5 August, 2009 - 11:30am login or register to post comments

 
Torymidae
Thank you for the nice explanation.
… David E. Reed, 5 August, 2009 - 11:46am login or register to post comments

A female Chalcid Wasp (Chalcidoidea)
Unfortenately, telling apart Pteromalidae and Torymidae is difficult, since neither relative size of hind coxa vs middle coxa, nor forewing venation are visible.
… Richard Vernier, 24 April, 2007 - 12:36pm login or register to post comments

 
Chalcid
Thanks. She flew before I could get more pictures.
… David E. Reed, 24 April, 2007 - 1:47pm login or register to post comments

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