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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Vespoidea » Hornets, Yellowjackets; Paper, Potter, Mason, and Pollen Wasps; and Allies (Vespidae) » Hornets and Yellowjackets (Vespinae) » Ground Yellowjackets (Vespula) » Western Yellowjacket (Vespula pensylvanica)
Photo#1627415
Queen. - Vespula pensylvanica - female
Copyright © 2019 Arthur Scott Macmillan

Queen. - Vespula pensylvanica - Female
Santa Cruz, Santa Cruz County, California, USA
January 7, 2019
Size: ~14mm
I'm really not all that sure I know the difference between V.alascensis and V.pensylvanica. Also, I don't know if isolated black spots on the abdomen alone are diagnostic for queens, or if it is based more on size. Either way at 14mm I would guess that this is a queen.

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Queen. - Vespula pensylvanica - female Queen. - Vespula pensylvanica - female
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Contributed by Arthur Scott Macmillan on 15 January, 2019 - 10:48pm
Last updated 21 January, 2019 - 3:49pm

Moved
Moved from Vespula. This is a queen of V. pensylvanica.
… Vespula Vulgaris, 20 January, 2019 - 5:11pm login or register to post comments

Moved
Moved from Hornets and Yellowjackets.

...but I am sure it is Vespula (because of the short distance between the eyes and the mandibles.

Actually I am leaning towards V. pensylvanica...but I don't know why!
… Arthur Scott Macmillan, 15 January, 2019 - 11:51pm login or register to post comments

Moved
Moved from ID Request.
… Ken Wolgemuth, 15 January, 2019 - 11:39pm login or register to post comments

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