Osmia (Melanosmia) calla Cockerell, 1897

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), Zootaxa 5522 (1), pp. 1-391 : 360

Osmia (Melanosmia) calla Cockerell, 1897

[ Syntype: USNM (not found); ♂ Olympia , Washington, USA; May 25, 1894; June 17, 1894]

Osmia calla occurs from southwestern Canada to BC, Mexico. We reviewed one male collected in the Baja California Mountains in Sierra Juarez in May 1981 (1 ♂; SDNHM). The BBPT also collected this species in the Coastal Sage Matorral in Guadalupe Valley in April 2022 (4 ♀). Voucher specimens are in MABC (3 ♀), and ECOAB (1 ♀). See fig. 258 .