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Calendar
Upcoming Events

Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, 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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowseInfoImagesLinksBooksData
On the Ecology and Systematics of Coloradan Bumblebees
By Byron, Peggy Ann
Thesis, University of Colorado, Boulder CO, 1980
Cite: 58373
193 pp. Contains descriptions of 20 species and subspecies of Bombus and 3 species of Psithyrus in Colorado, also a key to males and females to Colorado Bombus and Psithyrus. No images.