Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
BugGuide Gathering
Smoky Mountains
University of Tennessee Biological Field Station
August 8-10, 2008
Details...
 
Photos from the last gathering (Minnesota 2007)

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.