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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Bees, Ants, and other Stinging Wasps » Vespoidea » Yellowjackets, Paper Wasps, and Hornets; Potter, Mason and Pollen Wasps (Vespidae) » Hornets and Yellowjackets (Vespinae) » Vespula » Blackjacket (Vespula consobrina)
Photo#139819
Wasp - Vespula consobrina - male
Copyright © 2007 Ilona Loser

Wasp - Vespula consobrina - Male
Cross Plains, Dane County, Wisconsin, USA
August 25, 2007
Another new wasp for this year. I've only seen one of these in the park.

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Wasp - Vespula consobrina - male Wasp - Vespula consobrina - male
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Contributed by Ilona Loser on 25 August, 2007 - 10:47pm
Last updated 26 August, 2007 - 10:34pm

Blackjacket...
Looks like either a male blackjacket, vespula consobrinia, or a male parasitic yellowjacket, dolichovespula adulterinia
… vulgaris, 26 August, 2007 - 8:34am login or register to post comments

 
A male Blackjacket (Vespula consobrina)
Distinctive features, relative to D. adulterina arctica, are easier to see on the other picture.
… Richard Vernier, 26 August, 2007 - 5:20pm login or register to post comments

 
I'd like to know how to tell them apart...
I don't know any ways of destinguishing between the two, can you tell me how ???
… vulgaris, 26 August, 2007 - 5:49pm login or register to post comments

 
Well... I think...
the best for you is to look at photograph Nr 34282, posted by Tony Thomas, available on the Vespula consobrina page. There, one male of each species is showed from dorsal view. For me, the most striking difference lies in the shape of the pronotum, gently rounded in Vespula and truncated in Dolichovespula (as color pattern of both species varies in a parallel way to some extent, and length of oculo-malar space is difficult to assess without comparison in males).
… Richard Vernier, 27 August, 2007 - 7:15pm login or register to post comments

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