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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Ants (Formicoidea) » Ants (Formicidae) » Formicinae » Lasiini » Citronella Ants (Lasius) » Subgenus Chthonolasius (Lasius Subgenus Chthonolasius) » Lasius aphidicola
Photo#504656
Lasius umbratus - Lasius aphidicola - female
Copyright © 2011 Ben Coulter

Lasius umbratus - Lasius aphidicola - Female
Allegheny County, Pennsylvania, USA
April 10, 2011
Size: 4 mm
Lasius under a stone, with cattle. Those are root aphids (Eriosomatinae), right?

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Lasius umbratus - Lasius aphidicola - female Lasius umbratus - Lasius aphidicola - female
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Contributed by Ben Coulter on 10 April, 2011 - 11:41pm
Last updated 9 April, 2012 - 9:44am

Moved
Moved from Ants.
… Ben Coulter, 11 April, 2011 - 12:58pm login or register to post comments

Body length and eye proportio
Body length and eye proportions say L. umbratus to me. Check you key and see if you agree...
L. nearcticus is smaller, smaller-eyed, paler yellow, and more typically a forest inhabitant.
… James C. Trager, 11 April, 2011 - 12:30pm login or register to post comments

 
Well...
Length was a bit of a guess, and it was late. They could have been 3 mm. Fortunately, it was in the yard. I have no qualms with umbratus as an identification, and I see your point about the eye size. The habitat is actually mostly forested, and they should probably both be here.

I'll have to dust off the key. Is there something more current than Wilson?
… Ben Coulter, 11 April, 2011 - 12:46pm login or register to post comments

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