description Bombus pensylvanicus Overview
Bombus pensylvanicus, commonly known as the American bumblebee, is a widespread bumblebee species native to North America. This extant bee plays a crucial role in pollinating wildflowers and agricultural crops. Its populations have experienced significant declines in recent decades, making it an important subject of study for conservation efforts. Researchers, ecologists, and those interested in native pollinators benefit from understanding this bee’s biology and current status.
insights Why this score
Bombus pensylvanicus ranks #48 of 404 in the Bee ranking, behind Anthophora plumipes, ahead of Blueberry Bee (Habropoda laboriosa).
help Bombus pensylvanicus FAQ
How can you identify an American bumblebee?
Bombus pensylvanicus generally has a black head, a yellow thorax, and yellow coloration toward the front of its abdomen, with much of the remaining abdomen black. Reliable identification may require comparison with similar species such as Bombus auricomus.
Where does Bombus pensylvanicus build its nest?
American bumblebees often nest at or just below ground level in open habitats. Colonies may occupy abandoned rodent burrows, clumps of grass, or cavities beneath surface debris.
Which plants does the American bumblebee pollinate?
It visits many wildflowers and crops, including clovers, sunflowers, goldenrods, and members of the nightshade family. Like other bumblebees, it can perform buzz pollination, which is useful for flowers such as tomatoes.
Why has Bombus pensylvanicus declined?
Its losses have been associated with habitat conversion, pesticide exposure, pathogens, and reduced floral diversity. The species was once common across much of the eastern and central United States but has disappeared from parts of its former range.
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