About Bombus ashtoni (Cresson, 1864)
Bombus ashtoni, formally described by Cresson in 1864, is a species of cuckoo bumblebee. As a cuckoo bumblebee, it acts as a parasite of closely related bumblebee species, including Bombus affinis, Bombus terricola, and Bombus fervidus. It lives inside the nests of these host bumblebees and tricks the host bees into providing it with resources like food.