Bombus (Pyrobombus) impatiens Cresson, 1863

Zarrillo, Tracy A., Stoner, Kimberly A. & Ascher, John S., 2025, Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA), Zootaxa 5586 (1), pp. 1-138 : 82

Bombus (Pyrobombus) impatiens Cresson, 1863

Common Eastern Bumble Bee

Notes: Consistent with its common name, Bombus impatiens is one of the most abundant bumble bee species in Connecticut and has the most records of all bee species observed in Connecticut on iNaturalist (https:// www.inaturalist.org/observations?place_id=49&subview=table&taxon_id=630955&view=species). This pivotal pollinator of many agricultural crops (Kleijn et al. 2015) is likely under-represented in museum collections and/or databases relative to its true abundance because it is so ubiquitous (Zarrillo & Stoner 2019), rendering community science observations on digital biodiversity portals an additional tool for documenting its prevalence. Bombus impatiens was the most abundant pollinator on vegetable farms in Connecticut ( Stoner , 2013) , with 2,445 individuals found visiting alternative floral resources. Stoner (2020) also reported 9,115 individuals visiting pumpkin and squash flowers over the years of the study, making it the most abundant pollinator of pumpkins and squash in Connecticut .