Megachile (Argyropile) townsendiana Cockerell

Cockerell 1898: 129, ♂. Type locality: Las Cruces, New Mexico. Type repository: CAS.

Ayala et al. 1997: 455 [distribution in Mexico]

Yañez-Ordóñez & Hinojosa-Díaz 2004: 188 [distribution in Mexico]

Mitchell 1937: 54 (Figs. mandible, genitalia and associated sterna, Pls. V and VI); 1943a: 13; 1962: 161 [♂ genitalia and associated sterna, Fig. 50, 52 and 55; Fig. 51, mandible of Ψ and ♂]

bishoppi Cockerell, 1915: 535, ♂. Type locality: Paris, Texas, USA. Type repository: USNM.

Mitchell 1937: 54 [synonymy with townsendiana]

Distribution. Southwestern United States to northern Mexico.

Floral records. Actinella, Baileya multiradiata, B. pleniradiata, Encelia frutescens, Geraea canescens, Chrysopsis villosa, Haplopappus acuadenius, Helianthus debilis, Hoffmanseggia— Leguminosae, Hymenopappus filifolius, Larrea tridentata— Zygophyllaceae, Lepidium montanum— Brassicaceae, Medicago sativa— Fabaceae, Melanthera parviflora, Pectis papposa, Phacelia robusta— Hydrophyllaceae, Prosopis— Leguminosae, Verbesina encelioides, Wislizenia refracta— Capparaceae .