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Photo#171635
Wasp - Priocnemis oregona

Wasp - Priocnemis oregona
Glen Ellen, Sonoma County County, California, USA
March 1, 2008
Size: 35mm
Found while walking trail at Bouverie Preserve.

Moved
Moved from Priocnemis.

Probably Priocnemis
and likely Priocnemis oregona. It's too stocky to be an Agenielline. The teeth on the hind tibiae look too pronounced to be Priocnemis s.s. Unfortunately you'll have to apply this ID carefully since I am not at all familiar with the local variation of the California fauna of some Pepsinae.

Not an ID
but we have several images of black Ichneumonids with red abdomens - see here:

http://bugguide.net/node/view/16453/bgimage

Possibly like one of these?

 
Wasp
Thank for the help Ken.
Rich

 
Don't think so, try Pompilidae
Looks like

Definitely not an Ichneumonid though

 
Thanks Will!
(and sorry for the mistake, Richard...) Will, do you have time to comment briefly on Pompilidae versus Ichneumonidae? I'm sure there are lots of differences, but they sometimes look similar to me...

Ken

 
I'm definitely not the one to
I'm definitely not the one to wax poetic on Pompilids. You want Nick Fensler for that! They do look similar, but I've always thought of icheneumonids as being much more slender than Pompilids. The head and eyes are shaped a bit differently, but I couldn't described how. The abdomen of many Ichenuemonids is usually laterally flattened and much longer than a pompilid. Icheneumonid females often show extremely long ovipostitors, which Pompilids don't. That's just my interpretation of the look of Pompilids, a technical description is beyond my capabilities. Experience, like with all insects, is the best teacher.

 
Thanks!
Thanks!

 
wasp
Thanks for the lead Will, it sure looks like a Pompilidae.
Richard

 
Pompilid.
The early date, and what appears to be serrated hind tibia, leads me to think this might be Priocnemis oregona, or a related species. Do wait for Nick to chime in, though.

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