Imagine your whole life in a few months, everything accelerated. We must seem as slow as a tree to them.
This bumblebee nests in the ground, commonly in old gopher holes.We had
a large colony in the pile of fifteen gallon pots. The bees flew in
through the drainage hole and filled about half of a bucket. We heard
them for the whole summer, but didn't figure out what was happening until
the next winter when we used some of the pots and found the old nest.
Bumble bees have a wicked sting, and they can sting repeatedly. BUT,
I've only been stung when I stepped on one bare footed and when I had
one land on my neck and I smashed it. Both times the bee lived, I
Nectar sources include, (not limited to), Arbutus
, Dicentra, Epilobium
, Malacothamnus, Marah
, Trifolium, Vicia, Wyethia
Forage probably ranges over 500 meters, with mean about 275 meters(.Osborne et. al. 1999)
Syn. Bremus vosnesenskii, Bombus columbicus
Osborne, et. al. 1999, A landscape-scale study of bumble bee foraging
range and constancy, using harmonic radar. Journal of Applied
Ecology, 36, 519-533
Thorp, Robbin W., & Horning, Donald S. & Dunning, Lorry
L. 1983 Bumble bees and cuckoo bumble bees of California
(Hymenoptera, Apidae) / by Robbin W. Thorp, Donald S. Horing, Jr.,
Lorry L. Dunning University of California Press, Berkeley.