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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Braconid and Ichneumonid Wasps (Ichneumonoidea) » Ichneumonid Wasps (Ichneumonidae) » Pimplinae » Ephialtini » Polysphincta Genus Group
Photo#293052
Parasitic Wasp - male
Copyright © 2009 John Sloan

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).

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Parasitic Wasp - male Parasitic Wasp Parasitic Wasp
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Contributed by John Sloan on 23 June, 2009 - 11:27pm
Last updated 10 February, 2012 - 12:11pm

Moved
Moved from Ephialtini.
… Bob Carlson, 17 November, 2009 - 3:05pm login or register to post comments

Moved
Moved from Ichneumon Wasps. I followed the modern classification here, not using Polysphinctini.
… John F. Carr, 27 September, 2009 - 8:46pm login or register to post comments

Ephialtini
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).
… Bob Carlson, 26 September, 2009 - 4:47pm login or register to post comments

Ichneumon...
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:
http://bugguide.net/node/view/150
… Ross Hill, 24 June, 2009 - 12:41pm login or register to post comments

 
Thanks
I still have the specimen, and I might send it to someone to try and get a species ID (if that's possible).
… John Sloan, 24 June, 2009 - 7:53pm login or register to post comments

Ichneumon wasp.
I believe this is an ichneumon wasp. Several genera are known to be parasitic on spiders.
… Eric R. Eaton, 24 June, 2009 - 10:32am login or register to post comments

nice!
could you please flip your images into the conventional head-up position? helps a lot identifying most insects
… v belov, 23 June, 2009 - 11:43pm login or register to post comments

 
No problem.
Done!
… John Sloan, 24 June, 2009 - 12:42am login or register to post comments

 
thank you very much!
now let's wait for experts... :-] braconids are notoriously tough
… v belov, 24 June, 2009 - 1:24am login or register to post comments

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