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Parasitic Wasp - male

Parasitic Wasp - Male
Whitecourt, Alberta, Canada
June 23, 2009
Size: BL = 5mm
Dorsal view of parasitic wasp. I first found this as a larva that was in the final stages of consuming a spider before pupating. I kept the pupa and 8 days later this came out. The spider looked like an immature orb weaver (Araneidae).

Images of this individual: tag all
Parasitic Wasp - male Parasitic Wasp Parasitic Wasp

Moved from Ephialtini.

Moved from Ichneumon Wasps. I followed the modern classification here, not using Polysphinctini.

Male. Likely a genus in the Polysphincta group of genera (Polysphinctini in the sense of Townes & Townse, 1960, USNM Bull. 216, part 2, p. 216-279).

At first glance, this looks remarkably similar to a male stem sawfly, but the size, narrowed waist, wing venation, and parasitic behavior suggest otherwise. Two recurrent m-cu crossveins confirm this as an ichneumon wasp. There are indeed several subfamilies that prey on spiders, but some views that might help to ID them are missing from these images, so I would leave at family level for now. Nice work John.

See reference here:

I still have the specimen, and I might send it to someone to try and get a species ID (if that's possible).

Ichneumon wasp.
I believe this is an ichneumon wasp. Several genera are known to be parasitic on spiders.

could you please flip your images into the conventional head-up position? helps a lot identifying most insects

No problem.

thank you very much!
now let's wait for experts... :-] braconids are notoriously tough

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