Bombus sonorus, commonly known as the Sonoran bumble bee, is a species of bumble bee in the family Apidae. It is found in Central America and western and southwestern North America.[1][2][3] Considered uncommon, it is sometimes categorized as a subspecies of Bombus pensylvanicus.[4]
^ abcdKoch, 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 2022-08-08.
^Hogue, Charles L.; Hogue, James N. (2015). Insects of the Los Angeles Basin (3rd ed.). Los Angeles: Natural History Museum of Los Angeles County. p. 371. ISBN978-0938644-44-6. OCLC910654655.
Villalobos, Ethel M.; Shelly, Todd E. (1987). "Observations on the Behavior of Male Bombus sonorus (Hymenoptera: Apidae)". Journal of the Kansas Entomological Society. 60 (4): 541–548. JSTOR25084943.