Hylaeus (Prosopis) episcopalis (Cockerell, 1896) [Type: ♂ Elk River, 16.94 km north of Steamboat Springs, Colorado, USA; July 16, 1894] This species is widely distributed in northern Mexico and the western USA. It is most abundant Hylaeus species in BC. AMNH reported five preserved specimen records collected in 1963 in the Lower Colorado Desert in San Felipe (GBIF 2023). The BBPT collected 25 females and 6 males in the Coastal Sage Matorral, Chaparral and Baja California Mountains (Supplementary material 1). Voucher specimens are in MABC, and ECOAB. See fig. 165.

Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 244, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532