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Bombus occidentalis, the western bumble bee, is one of around 30 bumble bee species present in the western United States and western Canada. [1] A recent review of all of its close relatives worldwide appears to have confirmed its status as a separate species. [2]
Historically, Bombus occidentalis, the so-called "western bumble bee" was the most common species, with a distribution all the way from California to British Columbia and Alaska, but diseases introduced by commercial rearing operations in the eastern United States brought coastal populations of B. occidentallis to the brink of extinction, and B ...
The list presented here is a checklist of global bumblebee [1] species (Tribe Bombini) based on the Bombus phylogeny presented by Cameron et al (2007) [2] and grouped by subgenus following the revision of Williams et al (2008). [3]
A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus Bombus, part of Apidae, one of the bee families. This genus is the only extant group in the tribe Bombini, though a few extinct related genera (e.g., Calyptapis) are known from fossils.
The Bombini are a tribe of large bristly apid bees which feed on pollen or nectar.Many species are social, forming nests of up to a few hundred individuals; other species, formerly classified as Psithyrus cuckoo bees, are brood parasites of nest-making species.
[2] [3] Suckley's bumble bee is a generalist pollinator and represents a rare group of obligate, parasitic bumble bees (cuckoo bumble bees). Suckley's bumble bee is a social-parasite because it invades the nests of the host bumble bees, including the western bumble bee (Bombus occidentalis), and relies on host species workers to provision its ...
Suckley’s cuckoo bumble bee may be classified as endangered under the Endangered Species Act after a recommendation from the U.S. Fish and Wildlife Service. This social parasite is native to 15 ...
White shouldered bumble bee (Bombus appositus) Black and gold bumble bee (Bombus auricomus) Bombus baeri; Two form bumble bee (Bombus bifarius) Two-spotted bumble bee (Bombus bimaculatus) Northern amber bumble bee (Bombus borealis) Central bumble bee (Bombus centralis) Lemon cuckoo bumblebee (Bombus citrinus) Bombus coccineus; Bombus ephippiatus