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University of California, San Diego. Year: 2017.   cc-by-sa-3.0

Vespula pensylvanica (Western Yellowjacket) is a species of Hymenoptera in the family Vespidae. They are native to United States, Canada, and Mexico. They visit flowers of thistle, crimson bottlebrush, Common Toadflax, and California figwort. They are diurnal.

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EOL has data for 13 attributes, including: