New York Natural Heritage Program
Black and Gold Bumble Bee
Bombus auricomus (Robertson, 1903)
Insects
Betsy Betros
Family: Triepeolus (Apidae)

State Protection: Not Listed
The species is not listed or protected by New York State.

Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: Typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology makes it especially vulnerable in New York State.

Global Rarity Rank: G4G5
A Global Rarity Rank of G4G5 means: Apparently or Demonstrably Secure globally - Uncommon to common in the world, but not rare; usually widespread, but may be rare in some parts of its range; possibly some cause for long-term concern due to declines or other factors. More information is needed to assign a single conservation status.


Did you know?
Black and gold bumble bees (Bombus auricomus) are very similar in appearance to Nevada bumble bees (Bombus nevadensis). However, Nevada bumble bees are a western species and have not been documented in New York.

State Ranking Justification [-]
Black and gold bumble bees are known from just two New York locations (Monroe and Tompkins counties) since 1980 (Richardson 2013 and Yanega 2013). This species is only known from 8 locations overall since 1899 and appears to never have been common in NY, where it is on the northern and eastern range margin for the species. Threats to the species include habitat loss, pesticides, and urbanization (Schweitzer et al. 2012) as well as pollution and invasive species. It does not appear to be experiencing high susceptiblity to the N. bombi pathogen as with Bombus and Thoracobomus sub-genera. 

Short-term Trends [-]

Long-term Trends [-]