Medium
Photo © atrox, all rights reserved
Boulder, Colorado. Found on... (Google, OSM) Details Hide details

Description

on CU Boulder campus. Has large orange dorsal band. We saw many of these on CU campus. Posted as part of the VertNet Biodiversity Informatics Workshop.

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Comments & Identifications

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Posted by vijaybarve about 3 years ago (Flag)
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This is outside of the range of Bombus ternarius. It could be Bombus bifarius, Bombus huntii or Bombus sylviloa, with the first two more likely as they are more common. I cannot tell from this photo.

Posted by richard3 about 3 years ago (Flag)
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Thanks a lot @richard3 for the clarification. So it will be better if we change the id to genus level.

Posted by vijaybarve about 3 years ago (Flag)
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It is probably Bombus bifarius (do you have any other photos?) It looks like there is a V-shaped notch at the back of the thorax, which would be a defining character. If you don't have another photo that might show this character (better than the current one), Bombus sp. would be safest. There are guides to western and eastern bumble bees posted at the bottom of this page: http://www.xerces.org/bumble-bee-identification/

Posted by richard3 about 3 years ago (Flag)
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Bumble Bees - Photo (c) sankax, some rights reserved (CC BY-NC)
atrox's ID: Bumble Bees (Genus Bombus)
Posted by atrox over 2 years ago (Flag)
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Bumble Bees - Photo (c) sankax, some rights reserved (CC BY-NC)
vijaybarve's ID: Bumble Bees (Genus Bombus)
Posted by vijaybarve over 2 years ago (Flag)
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Bumble Bees - Photo (c) sankax, some rights reserved (CC BY-NC)
atrox's ID: Bumble Bees (Genus Bombus)
Bumble Bees - Photo (c) sankax, some rights reserved (CC BY-NC)
Community ID: Bumble Bees (Genus Bombus)
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vijaybarve 1 person agrees
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Observation © Carol Spencer
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