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]
| Bombus appositus | |
|---|---|
| |
Scientific 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
| |
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 edit
- ^ a b c d e Hatfield, R., et al. 2015. Bombus appositus. The IUCN Red List of Threatened Species. Downloaded on 04 March 2016.
- ^ NatureServe. 2015. Bombus appositus. NatureServe Explorer Version 7.1. Accessed 4 March 2016.
- ^ 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.
- ^ https://fieldguide.mt.gov/speciesDetail.aspx?elcode=IIHYM24040
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