Bees of the Pacific Northwest **NEW** Key to Species for Lasioglossum Subgenera Lasioglossum and Leuchalictus (download link) Key to Lasioglossum females of the subgenera Hemihalticus, Sphecodogastra, and Evylaeus in Oregon (download link) Key to Genera (download link) Key to Bumble Bee Species for Females (download link) Key to Bumble Bee Species for Males (download link)
