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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) » Potter and Mason Wasps (Eumeninae) » Symmorphus » Symmorphus albomarginatus
Photo#51505
Mason wasp - Symmorphus albomarginatus - female
Copyright © 2006 Steve Scott

Mason wasp - Symmorphus albomarginatus - Female
Fairfield, Wayne County, Illinois, USA
May 6, 2006
I'm leaning towards an Ancistrocerus species.
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Contributed by Steve Scott on 9 May, 2006 - 10:47pm
Last updated 22 June, 2007 - 12:43pm

Moved
Moved from Symmorphus.
… Matthias Buck, 22 June, 2007 - 12:43pm login or register to post comments

Symmorphus albomarginatus, female (IL)
See comments elsewhere.
… Matthias Buck, 22 June, 2007 - 12:42pm login or register to post comments

 
Thanks for
the ID. :)
… Steve Scott, 22 June, 2007 - 1:14pm login or register to post comments

Symmorphus sp. (Eumeninae) - female
Shape and color pattern of the first abdominal tergite (not only with a transversal carina, but with a central depression too) are quite typical of this peculiar genus, only distantly related to Euodynerus and Ancistrocerus. Notauli of the mesoscutum are also much more deeply impressed than in most Ancistrocerus sp.
Most species of Symmorphus hunt for leef-beetle larvae, especially those living on willow, poplar or alder trees.
… Richard Vernier, 10 May, 2006 - 4:14am login or register to post comments

 
Thanks
Definitely in the right environment for the behavior you describe. Sitting on a weeping willow infested with leaf-beetle larvae. However it was not especially tiny as wasps go and I gather Symmorphus are generally small?
… Steve Scott, 10 May, 2006 - 12:17pm login or register to post comments

 
Most Symmorphus...
are indeed small and slender compared with this specimen. Nonetheless, a few larger and stouter species do exist, although less often met. This one female obviously belongs to one of them.
… Richard Vernier, 11 May, 2006 - 2:31am login or register to post comments

 
Thanks
Moved to Eumeninae page as no genus page exists.
… Steve Scott, 11 May, 2006 - 3:10pm login or register to post comments

 
Moved
to new guide page.
… Beatriz Moisset, 16 June, 2006 - 8:15pm login or register to post comments

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