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Species Bombus terricola - Yellow-banded Bumble Bee

Bumble Bee on Sidewalk - Bombus terricola? - Bombus terricola Bombus terricola? - Bombus terricola re-cropped with more frames - possible -  Bombus pensylvanicus - Bombus terricola Bombus - Bombus terricola Bombus terricola - male Pumpkin Bombini - Bombus terricola Distinctly banded Bombus species - Bombus terricola? - Bombus terricola Bombus terricola? - Bombus terricola
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Apidae (Cuckoo, Carpenter, Digger, Bumble, and Honey Bees)
Subfamily Apinae (Honey, Bumble, Long-horned, Orchid, and Digger Bees)
Tribe Bombini (Bumble Bees)
Genus Bombus (Bumble Bees)
No Taxon (Subgenus Bombus )
Species terricola (Yellow-banded Bumble Bee)
Synonyms and other taxonomic changes
Bombus occidentalis of western North America has often been treated as a subspecies of Bombus terricola but is now most often regarded as distinct.
Explanation of Names
Author: Kirby, 1837.
queen: body length 17-19 mm
male: 13-17 mm
worker: 9-14 mm
see for detailed descriptions of queen and male; worker resembles queen in general, but pubescence relatively longer
northern and eastern North America? Most records from the Rocky Mountains of the USA mapped in the Williams et al. guide surely pertain to misidentified occidentalis.
April to October
The Hosts section of its Discover Life species page lists known associations based on specimen records and images.
Declines of this species were first noted by John S. Ascher at Ithaca, New York, ca. 2001. In the 1990s this was one of the most common bumble bees in that region, but afterwards few individuals were detected. The species persists in relatively large numbers at some sites, especially in the northern portion of its range, but it has undoubtedly declined severely.
Internet References
24 pinned adult images plus detailed description of queen, worker, male, distribution, seasonality, flower records, similar species (
discussion of taxonomic status of terricola and occidentalis (Paul Williams, Natural History Museum, UK)
common name reference; PDF doc [Yellowbanded Bumble Bee] (Committee on Common Names of Insects, Entomological Society of America)
IUCN Red List (Vulnerable listing with explanation)