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For the United States & Canada
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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events

Bumble Bees and Cuckoo Bumble Bees of California
By Robbin W. Thorp, Donald S. Horning, Jr., Lorry L. Dunning
University of California Press, Berkeley, 1983
ISBN: 0-520-09645-2
Cite: 242789 with citation markup [cite:242789]
A useful reference covering California bumblebees by a well-respected authority on the subject. Begins with general information on life history and ecology, followed by technical keys, and discussions of the California subgenera and species of Bombus and Psithyrus (parasitic "Cuckoo Bumble Bees"). A PDF file of the 79 page monograph is available for free here.

mind removing quot.marks from the title? :]

For you =v=...
...I'm willing to indulge such a request :-)

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