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Photo#407459
little red flightless wasp - female

little red flightless wasp - Female
Clark's Creek Park, Puyallup, Pierce County, Washington, USA
June 7, 2010
Size: ~ 5 mm
Found on the black chainlink fence around the dog park. It did look very similar to the ants that were also crawling around on the fence. Ant mimic.

gelinae
Can't thank you folks enough for all the great photos - wonderful for IDing finds, in this case 2 of these orangey-red gelinae. Wish they would stay undercover and survive til next year. posting pic of much lesser quality to give example of 2nd one found on house.

 
Cryptinae
Your species (472699) is wingless and appears to be a species of Gelis. This one is brachypterous, and is not a species of Gelis. Concerning Gelis, Townes (1970) said "Species never brachypterous but with wings either fully developed or entirely absent."

 
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Townes was evidently incorrect on the issue of Gelis being either wingless or fully winged, as I encountered this 1994 paper concerning the European species of Gelis with brachypterous females. I think it is safe to say, of course, that Townes was unaware of any Nearctic species of Gelis with brachypterous females, and so it seems unlikely that this could be a species of Gelis.

Moved
Moved from ID Request. Thanks Richard!

Little red flightless Ichneumon Wasp
A member of the subfamily Gelinae (formerly Cryptinae). "Flightless" is more accurate than "wingless", because shortened - and of course quite useless - forewings are still present in this taxon, contrary to genus Gelis itself.
Females of this last genus are quite wingless and their alitrunk reminds much that of workers ants.

 
Well
Gelinae of Townes and briefly Phygadeuontinae of some others but now almost universally as Cryptinae as discussed by Wahl. This is a very striking species and a superb photo. While I don't have much experience identifying the brachypterus cryptines, I would sort of wonder if this species has even been named.

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