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Subgenus Cullumanobombus

Southern Plains Bumble Bee - Bombus fraternus - male Bombus griseocollis - female  Bombus griseocollis - Brown-belted Bumble Bee - Bombus griseocollis B. affinis? - Bombus griseocollis - female Bumblebee - Bombus morrisoni Red-belted Bumble Bee, frontal - Bombus rufocinctus - female Bumble Bee - Bombus griseocollis Bumble Bee on Green Milkweed in Tall Grass Prairie - Bombus griseocollis
Classification
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, Longhorn, Orchid, and Digger Bees)
Tribe Bombini (Bumble Bees)
Genus Bombus (Bumble Bees)
No Taxon Subgenus Cullumanobombus
Numbers
5 spp. in our area, 25 spp. worldwide(1)
Identification
Eye of male enlarged. Head and malar space rather short. Midleg with rounded angle.
Range
most diverse in the New World (22 spp.), esp. in the Neotropics, 3 spp. in the Palaearctic; in our area, all 5 spp. occur in the US, 3 range into Canada (B. rufocinctus is transcontinental and ranges far north, B. griseocollis is transcontinental in n. US and adjacent Canada + widespread in e. US, B. morrisoni occurs in the w. half of the US and so. BC, B. fraternus in the US east of the Rockies, and B. crotchii is mostly west of the Rockies)(1)
Habitat
High alpine grassland, mountain-meadow, open grassland, and semi-desert.