Checklist of all bees known to bee in Pennsylvania. Data from:
Kilpatrick SK, Gibbs J, Mikulas MM, Spichiger S, Ostiguy N, Biddinger DJ, López-Uribe MM. (2021) Corrigenda: An updated checklist of the bees (Hymenoptera, Apoidea, Anthophila) of Pennsylvania, United States of America. Journal of Hymenoptera Research. Journal of Hymenoptera Research. 77: 1–86