Supplementary material 1 from: Koch J, Lozier J, Strange J, Ikerd H, Griswold T, Cordes N, Solter L, Stewart I, Cameron S (2015) USBombus, a database of contemporary survey data for North American Bumble Bees (Hymenoptera, Apidae, Bombus) distributed in the United States. Biodiversity Data Journal 3: e6833. https://doi.org/10.3897/BDJ.3.e6833

Count of specimens per species in western United States and Alaska, including some species that are found in the Eastern United States.

美国西部及阿拉斯加地区各物种种本标本的数量统计，涵盖部分分布于美国东部的物种。