Megachile (Pseudocentron) sidalceae 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 : 325-326

Megachile (Pseudocentron) sidalceae Cockerell, 1897

[ Holotype: CASC; ♂ Mr. Clark Rodger’s ranch, Lone Mountain , near Silver City, New Mexico, USA; July 7, 1896; Deming, New Mexico, USA; July 9, 1896]

Megachile sidalceae is distributed in northern Mexico and the southern USA. This is one of the most abundant species in the BCP and has been previously recorded by ASUHIC, BBSL, and UCRC ( GBIF 2023 ). We examined specimens collected in the Central Desert in October 1997 (1 ♀), Vizcaíno Desert in March 1981 (1 ♂; BBSL), Magdalena Plains in August 1966 (2 ♀, 1 ♂; EMEC), and Sarcocaulescent Shrubland in August 1966 (1 ♂; EMEC) and November 2013 (1 ♀, 1 ♂; BBSL). Additionally, The BBPT collected this species in the Succulent Coastal Sage (1 ♀), Lower Colorado Desert (10 ♀), Central Desert (1 ♀), Gulf Coast (1 ♀, 1 ♂), La Giganta Ranges (1 ♂), and the Magdalena Plains (3 ♀). Voucher specimens are in MABC , and ECOAB. See fig. 230 .