Dieunomia (Epinomia) nevadensis

Dieunomia (Epinomia) nevadensis (Cresson, 1874) [Lectotype: ANSP; ♀ Nevada, USA] Dieunomia nevadensis is widely distributed within the BCP and flies in the late summer months when host plants in late-blooming Asteraceae are in flower. We reviewed 72 specimens from the Coastal Sage Matorral, Chaparral, Gulf Coast vouchered in CASC (Supplementary material). The CARCIB team collected this species in the Magdalena Plains (31 ♀, 3 ♂) in 2016, 2017, and 2019, and Tropical Dry Forest (1 ♀) in March 2019. Additionally, the BBPT collected 47 specimens (34 ♀, 13 ♂) in the Coastal Sage Matorral, Chaparral, Baja California Mountains, Lower Colorado Desert, and Central Desert (Supplementary material 1). Voucher specimens are in MABC and ECOAB. See fig. 187.