* Bombus bimaculatus (To-flekkete humle)
* Bombus griseocollis (Brown-Belted Bumble Bee)
* Bombus affinis (Rusty-Patched Bumble Bee)
* Bombus pensylvanicus (American Bumble Bee)
* Bombus Impatiens (Vanlig østlig humle))
* Bombus Vagans (Halvt svart humle)
* Bombus Terricola (Gul-ansiktet humler)
* Bombus occidentalis (Western Bumble Bee)
* Bombus Vosnesenskii (Gul-crested Bumble Bee)