Eucera (Synhalonia) angustifrons ( Timberlake, 1969 )

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 : 169

Eucera (Synhalonia) angustifrons ( Timberlake, 1969)

[ Holotype: CASC; ♀ Riverside , California, USA; May 1, 1929]

Timberlake (1969) reported this species with two females collected from Sierra San Pedro Mártir in 1958. More recently, the BBPT collected 31 specimens (30 ♀, 1 ♂) in various localities, including the Baja California Mountains , Chaparral , Coastal Sage Matorral , Succulent Coastal Matorral, and the Central Desert in April 2022 and April 2023 ( MABC). See fig. 103 .