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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Apoidea (clade Anthophila) - Bees » Cuckoo, Carpenter, Digger, Bumble, and Honey Bees (Apidae) » Honey, Bumble, Longhorn, Orchid, and Digger Bees (Apinae) » Bumble Bees (Bombini) » Bumble Bees (Bombus) » Subgenus Cullumanobombus (Bombus Subgenus Cullumanobombus) » Brown-belted Bumble Bee (Bombus griseocollis)
Photo#1157087
Bombus sp on Rabbitbrush - Bombus griseocollis - male
Copyright © 2015 Lynn Monroe

Bombus sp on Rabbitbrush - Bombus griseocollis - Male
Heil Ranch Open Space, Boulder County, Colorado, USA
October 10, 2015
Size: ~ 20-22 mm
This largish bumble bee (not much smaller than B. nevadensis) was nectaring at Rabbitbrush at the Picture Rock Trailhead at Heil Ranch Open Space near Lyons, elevation ~5600'. I have another head/lateral view and an image of the abdomen which seems to have 7 tergites. Any help with its ID is much appreciated.

Images of this individual: tag all
Bombus sp on Rabbitbrush - Bombus griseocollis - male Bombus sp on Rabbitbrush - Bombus griseocollis - male Bombus sp on Rabbitbrush - Bombus griseocollis - male
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Contributed by Lynn Monroe on 19 October, 2015 - 2:36am
Last updated 19 October, 2015 - 5:42am

Moved
Moved from ID Request.
… John S. Ascher, 19 October, 2015 - 5:42am login or register to post comments

 
Bombus griseocollis male
Thanks so much for your ID of this handsome late season male, Dr. Ascher. Your help is much appreciated.
… Lynn Monroe, 19 October, 2015 - 11:36am login or register to post comments

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