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Obscure Bumble Bee

Bombus caliginosus


The obscure bumblebee is predominantly black, with yellow coloration on the face, top of the head, forward half of the thorax and on the fourth tergite (dorsal abdominal segment). The third and fourth sterna (ventral abdominal segments) have long, yellow hairs on their frontal rims. The head is rounded, with a medium length proboscis (tongue). (From Wikipedia)


The obscure bumblebee is an uncommon species, found near the western coast of the United States from Washington to California.


This bumble bee was spotted in my front yard flying around the rhododendron tree in full bloom. This one was much bigger than the other bumble bees with orange color. I'm pretty confident with my ID, but I'm no expert, so any suggestions are welcome! I also used this reference:

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Jellis 6 years ago

Boy they look just like our Yellow-faced Bumble Bee-Bombus vosnesenskii

HayleyBoBailey 6 years ago

I just spotted one of these guys in my yard -- exact same time of year! They're supposed to be in decline, so this is encouraging :)

YukoChartraw 7 years ago

Thank you TicThapanya!

TicThapanya 7 years ago

great shot, beautiful

YukoChartraw 7 years ago

Thank you Adarsha!

Adarsha B S
Adarsha B S 7 years ago

Nice bee :) very special one :)

YukoChartraw 7 years ago

Thank you Rieko-san! This bee was pretty big, too. :-)

RiekoS 7 years ago

Beautiful, black against pink.

Spotted by

Puyallup, Washington, USA

Spotted on May 26, 2013
Submitted on May 26, 2013

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