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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) » Ichneumoninae » Ichneumonini » Trogus Genus Group » Trogus » Trogus vulpinus
Photo#7580
Trogus vulpinus
Copyright © 2004 Cotinis

Trogus vulpinus
Durham County, North Carolina, USA
October 4, 2003
Size: 19 mm
I found this wasp last fall hanging about on my Frostweed, Verbesina virginica. It was captured, chilled, and posed for this photo. Length, head to tip of abdomen, 19 mm, measured by photographing adjacent to a scale. Wing chord is about 15 mm, making the wingspan about 33 mm.
Image updated 6/24/21.

Images of this individual: tag all
Trogus vulpinus Trogus vulpinus
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Contributed by Cotinis on 2 October, 2004 - 3:23pm
Last updated 24 June, 2021 - 1:16pm

Moved
Moved from Trogus pennator.
… Jonathan Hoskins, 24 June, 2021 - 2:57am login or register to post comments

Moved
Moved from Trogus.
… Bob Carlson, 19 December, 2009 - 8:40pm login or register to post comments

Ichneumon
The larger wasp is certainly an ichneumon, a species that parasitizes swallowtail caterpillars but emerges from the chrysalis. This is one of the few that should be identifiable to genus by an expert (i.e. NOT me:-)
… Eric R. Eaton, 4 October, 2004 - 2:42pm login or register to post comments

Similar, but probably different.
Nice photos, Patrick. Although similar, I think our two wasps are different species. The leg coloration is not the same, and the abdomens don't look alike. Also I get the feeling your wasp is bigger than mine, but I can't be sure.
… Richard Leung, 2 October, 2004 - 8:06pm login or register to post comments

 
I agree, different wasps
I believe I've seen both of these wasps and Richard's is a good bit smaller. Patrick's would be about the same or a little bigger than a paper wasp.

Patrick, I've had your wasp come to my light on a few different occasions. It's really bizarre for a wasp because of the texture and shape of the abdomen. It looks rough, like it might feel like sandpaper, and the segments are sort of bulbous. I figured Eric would ID it when I finally got around to uploading it.
… Troy Bartlett, 3 October, 2004 - 1:12am login or register to post comments

 
Roger that (leg color, abdomen)
Yes, I had noticed the leg color and the possible difference in abdomens. (I couldn't quite see the whole thing on your photos.)

I'll check on the size--this thing was pretty big, about 25 mm. I believe I took a photo with a scale--have to go back on my archived CD's.

Just a thought--they looked superficially similar at first glance. Of course, first glances are often wrong with wasps!

Patrick Coin
Durham, North Carolina
… Cotinis, 2 October, 2004 - 10:10pm login or register to post comments

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