B. impatiens is common throughout it’s range and is one of the three most abundant species of bumble bee in Vermont. This species is found in many habitats, and is even successful in urban settings. It was introduced in California and Mexico for pollination purposes and has likely become established there as well. Queens emerge in April and can be found as late as the end of October.
Select food plants: Cirsium (Thistles), Eupatorium, Gelsemium, Solidago (Goldenrods), Pontederia (Pickerel Weeds)
Tongue Length: medium
Parasitized by: B. citrinus
Similar Species: B. bimaculatus
queens: April – October
workers: May – October
males: June – October