Bombus appositus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Apidae
Genus: Bombus
Subgenus: Subterraneobombus
Species:
B. appositus
Binomial name
Bombus appositus
Cresson, 1878

Bombus appositus is a species of bumblebee known commonly as the white-shouldered bumblebee.[1][2] It is native to western North America, including western Canada and the western United States.[1]

This species lives in open habitat, such as meadows and slopes. It nests underground or on the surface. Males congregate to seek mates. It feeds on a variety of plant taxa, including giant hyssops, thistles, gentians, owl's clovers, locoweeds, penstemons, and clovers.[1] It especially favors subalpine larkspur (Delphinium barbeyi) and it serves as one of the plant's main pollinators.[3]

This species has a range from southwestern Canada south to the Cascade Mountains and the Sierra Nevada, and west to central California[4]

This species is a host to Bombus insularis, a species of cuckoo bumblebee.[1]

References

Wikimedia Commons has media related to Bombus appositus.
  1. 1 2 3 4 5 Hatfield, R., et al. 2015. Bombus appositus. The IUCN Red List of Threatened Species. Downloaded on 04 March 2016.
  2. ↑ NatureServe. 2015. Bombus appositus. NatureServe Explorer Version 7.1. Accessed 4 March 2016.
  3. ↑ Manson, J. S., et al. (2013). Dose‐dependent effects of nectar alkaloids in a montane plant–pollinator community. Journal of Ecology, 101(6), 1604-1612.
  4. ↑ https://fieldguide.mt.gov/speciesDetail.aspx?elcode=IIHYM24040
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