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Photo#46677
Bumble Bee? - Bombus melanopygus - female

Bumble Bee? - Bombus melanopygus - Female
Encino, Los Angeles County, California, USA
April 2, 2006
Size: 1 inch
Nectaring on Rose Geranium (Pelargonium 'Old-Fashioned Rose') in my front yard.

Images of this individual: tag all
Bumble Bee? - Bombus melanopygus - female Bumble Bee? - Bombus melanopygus - female

Moved
Moved from Bumble Bees.

B. melanopygus
edwardsii color form

 
Thanks!
for the confirmation.

Given where the photo was tak
Given where the photo was taken, the bee is probably Bombus melanopygus edwardsii. (Bombus edwardsii was determined to be a subspecies of Bombus melanopygus around 20 years ago.)

 
Thanks!
I make the most of the resources I can find, but there's no substitute for someone with a professional background in the subject

Bombus bifarius nearcticus
Looks like B. bifarius nearcticus according to Kearns-Thomson,2001.

 
Not so sure...
According to California Insect Survey v.23 (PDF format- about 7 MB), Bombus bifarius (nearcticus included) is a montane species not found in Southern California.

The species not eliminated by range are: Bombus crotchii Cresson , Bombus vosnesenskii Radoszkowski, Bombus californicus F. Smith, Bombus sonorus Say, Bombus edwardsii Cresson, and perhaps Bombus vandykei (Frison). How that translates to taxa in your 2001 source, I don't know.

Bombus bifarius nearcticus
Looks like B. bifarius nearcticus.

Yes - Bombus sp. (female)
A nice long - "tongued" species (subgenus or genus Megabombus), strongly reminding of Palearctic B. hortorum and B. ruderatus, to which it is obviously closely related.

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