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tiny wasp - Pseudochalcura gibbosa - male

tiny wasp - Pseudochalcura gibbosa - Male
Cross Plains, Dane County, Wisconsin, USA
September 3, 2009
Size: ~4mm

Moved from Eucharitidae.

Pseudochalcura gibbosa (Provancher)
(Hymenoptera: Eucharitidae) male

Moved from Eurytomidae.


The semi-quadrate head shape, strongly sculptured and punctate thorax, dull black coloration, a shiny, rounded and compressed abdomen, and an amazingly long petiole ID this as a male. I'm envious - do you sweep vegetation, use pan traps - how do you typically find so many of these and where?

See reference here.

Almost all of these wasps are found in a nearby conservation park by sweeping through low underbrush with a low tech plastic bowl. I've now started capturing the more interesting insects in small jars to take home to photograph and then releasing them back in the park -- or they often release themselves shortly after I open the container and snap a few photos. There are quite a few that escape even before I can capture them or photograph them so I'm always enticed back to the park to try again.

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