David_W_1971: Lasioglossum calceatum male
David_W_1971: Lasioglossum calceatum male
David_W_1971: Lasioglossum calceatum male
David_W_1971: Lasioglossum ?morio female
David_W_1971: Lasioglossum female, Earl's Hill
David_W_1971: Lasioglossum sp. female & friend
David_W_1971: Busy bee
David_W_1971: Lasioglossum calceatum, male)
David_W_1971: red-backed furrow bee, Lasioglossum laevigatum, female