Bombus melanopygus

Bombus melanopygus, the black-tailed bumble bee,[2] black tail bumble bee[1] or orange-rumped bumblebee,[3] is a species of bumblebee native to western North America.

Bombus melanopygus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Apidae
Genus: Bombus
Species:
B. melanopygus
Binomial name
Bombus melanopygus
Nylander, 1848
Synonyms

Bombus edwardsii

This bee is widely distributed across western North America, from the Pacific to the Rocky Mountains, and from Alaska to Baja California.[4][5]

There are two forms of the black-tailed bumblebee:[4]

  • Red form (“red butts,” Bombus melanopygus melanopygus) found primarily in higher latitudes of Oregon and points north, and in the Mountain West
  • Dark color form (Bombus melanopygus edwardsii) is most common in California and southern Oregon

(The second and third abdominal segments are red in northern populations and black in southern; individuals with black segments were previously known as Bombus edwardsii, a separate species. Genetic analyses support the conclusion that the two forms are the same species, with B. edwardsii as a synonym.[6])

This bumblebee can utilize a number of habitat types, including agricultural and urban areas. It is "one of the few bumblebees still found regularly in San Francisco".[7] It feeds on many types of plants, including manzanitas, Ceanothus, goldenbushes, wild buckwheats, lupines, penstemons, rhododendrons, willows, sages, and clovers. It nests underground or aboveground in structures.[1]

This species is a host to the zombie fly (Apocephalus borealis).[8]

References

  1. Hatfield, R., et al. 2014. Bombus melanopygus. Archived 2018-08-02 at the Wayback Machine The IUCN Red List of Threatened Species. Downloaded on 04 March 2016.
  2. Bombus melanopygus. Archived 2014-08-13 at the Wayback Machine Natural History of Orange County, California. School of Biological Sciences, University of California, Irvine.
  3. Bumblebees: photo gallery. Archived 2016-03-06 at the Wayback Machine E-Fauna BC. Department of Geography, University of British Columbia, Vancouver. Accessed 4 March 2016.
  4. Koch, Jonathan; Strange, James; Williams, Paul (2012). Bumblebees of the Western United States (PDF). U.S. Forest Service, Pollinator Partnership, Agricultural Research Service. Archived (PDF) from the original on 2022-06-05. Retrieved 2022-06-19.
  5. "Black-tailed Bumble Bee (Bombus melanopygus)". iNaturalist. Archived from the original on 2022-06-19. Retrieved 2022-06-19.
  6. Owen, R. E., Whidden, T. L., & Plowright, R. C. (2010). Genetic and morphometric evidence for the conspecific status of the bumble bees, Bombus melanopygus and Bombus edwardsii. Journal of Insect Science, 10(1), 109.
  7. NatureServe. 2015. Bombus melanopygus. Archived 2018-01-01 at the Wayback Machine NatureServe Explorer 7.1 Accessed 4 March 2016.
  8. Apocephalus borealis. Archived 2019-12-18 at the Wayback Machine Featured Creatures. University of Florida IFAS. Publication Number EENY-605. October 2014.


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