Superfamily APOIDEA 1805 



nigra Provancher. Ariz., south. Calif.; Mexico (Baja California). Pollen: Apparently .an oligolege 

 of Pkacelia including P. distans, but also visits flowers of Coreopsis maritima, 

 Cryptantha intermedia, Layia platyglossa, Malacotkrix, Mains, Salix. 



Andrena nigra Provancher, 1896. Nat. Canad. 23: 173. 9. 



Andrena griseonigra Cockerell, 1905. Canad. Ent. 37: 371. S. 



Andrena subtristis Cockerell, 1905. Canad. Ent. 37: 372. 9. 



Taxonomy: Linsley, 1938. Calif. Acad. Sci., Proc. (4) 23: 266, 279. 9, 6 (key). 



Biology: Linsley, 1938. Calif. Acad. Sci., Proc. (4) 280 (floral relationships). 

 nigripes Provancher. Calif. 



Andrena nigripes Provancher, 1895. Nat. Canad. 22: 173. 9. 

 nivalis Smith. Que. to Ga., west to B. C, south to Calif, and N. Mex. Pollen: Unknown, but 

 visits flowers of Hydrangea, Rhododeyidron, Rubus, Vagnera. 



Andrena nivalis Smith, 1853. Cat. Hym. Brit. Mus., v. 1, p. 118. 9, S. 



Andrena convexa Provancher, 1888. Addit. Corr. Faune Ent. Canada, Hym., p. 311. 9, cJ. 



Andrena semiriifa Cockerell, 1900. Ann. and Mag. Nat. Hist. (7) 5: 407. 9. 



Andrena solidula Viereck, 1904. Canad. Ent. 36: 191, 194. 9,6. 



Andrena idahonim Viereck, 1916. Amer. Mus. Nat. Hist., Bui. 35: 732. 9. 



Taxonomy: Morice and Cockerel], 1901. Canad. Ent. 33: 151. 9 (type). —Cockerell, 1906. 

 Psyche 13: 9 (type). —Cockerell, 1931. Amer. Mus. Novitates 458: 14. 9 (key, as seminifa). 

 — Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 128-129, figs. 22, 23, table 3 

 (redescription, synonymy). 



obscuripennis Smith. N. J.(?), N. C, Ga., La.(?). Parasite: Nomada cnidelis Cress.? Pollen: 

 Unknown, but visits flowers of Batodendron, Crataegus, Ilex, Padus. 

 Andrena obsmripennis Smith, 1853. Cat. Hym. Brit. Mus., v. 1, p. 188. 9. 



Taxonomy: Morice and Cockerell, 1901. Canad. Ent. 33: 150. 9 (type). —Cockerell, 1906. 



Psyche 13: 36. 9 (type). -Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 129-131, 



figs. 21, 23, table 3 (redescription). 

 perimelas Cockerell. Coastal Calif, and Catalina Island Parasite: Nomada edwardsii edwardsii 

 Cress., Stylops pacifica Bohart, S. vandykei Bohart. Pollen: Apparently polylectic, visits 

 flowers of Brassica, Coreopsis maritima, Crepis, Limnanthes douglasii, 

 Mesembryanthevium edule, Prunus, Ranunctilus califomims, Raphanus sativus, Ribes 

 cereum, Rubus, Salix, Sisymbrium bellum, Zygadenus fremontii. 



Andrena perimelas Cockerell, 1905. Canad. Ent. 37: 371. 9. 



Andrena meadowsi Cockerell, 1938. Ann. and Mag. Nat. Hist. (11) 2: 146. 6. 



Biology: Linsley and MacSwain, 1955. Wasmann Jour. Biol. 13: 254-256, 270, pi. 1, fig. 5 (nest, 

 floral relationships, parasite). —Linsley and MacSwain, 1959. Calif. Univ. Pubs. Ent. 16: 19, 

 pi. 5 (nest, floral relationships, parasite, stylopization). 

 pertristis Cockerell. Calif. Pollen: Unknown, but visits flowers of Brassica, Cryptantha 



intermedia, Eriodictyon trichocalyx, Fremontodendron califomica, Lupinus formosus, 

 Malus, Nemophila integrifolia, Phacelia heteropkylla, Stanleya pinnata. 

 Andrena pertristis Cockerell, 1905. Canad. Ent. 37: 372. 9. 



Taxonomy: Linsley, 1938. Calif. Acad. Sci., Proc. (4) 23: 265, 267. 9, 6 (key). 

 platyrhina Cockerell. Colo. 



Andrena (Pterandrena) platyrhina Cockerell, 1930. N. Y. Ent. Soc, Jour. 37: 446. 9. 

 pruni Robertson. Minn, and 111. to Mass., south to Ga. Pollen: Unknown, but visits flowers of 

 Anincus, Claytonia, Crataegus, Dentaria, Heracleum, Pastinaca, Polemonium, Prumis, 

 Ribes, Rubus, Salix, Staphylea, Uvularia, Viburnum, Zanthoxylum. 

 Andrena pruni Robertson, 1891. Amer. Ent. Soc, Trans. 18: 51. 9, tj. 



Taxonomy: Robertson, 1902. Amer. Ent. Soc, Trans. 28: 191, 192. 9, 6 (key). —Mitchell, 

 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 117-118, figs. 19-20, table 3 (redescription). 



pulverulenta Viereck. Oreg. 



Andrena pulverulenta Viereck, 1904. Canad. Ent. 36: 190, 195. 9,6. 



