Summary ²

Bombus bifarius, the two-form bumblebee, is a common species of eusocial bumblebee of the subgenus Pyrobombus. B. bifarius inhabits mountainous regions of western North America. Its common name refers to the two dominant color polymorphisms, the nominate and nearcticus morphs, present in the species. B. bifarius has been identified as one of the two species of bumblebee observed to use pheromones in kin recognition. The other is the frigid bumblebee, B

Sources and Credits

1. (c) Pete Nesterenko, some rights reserved (CC BY-NC), uploaded by Pete Nesterenko
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Bombus_bifarius

More Info

• iNat taxon page
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