1830 Hymenoptera in America North of Mexico 



hypoleuca Cockerell. South. Calif. (Catalina Island). 



Andreiia hypoleuca Cockerell, 1939. Pomona Jour. Ent. Zool. 31: 25. 9. 

 nasonii Robertson. Eastern Canada and Minn., south to Ga. and Tex., Colo. Pollen: Apparently 

 polylectic, visits a wide variety of flowers including Acer, Aynelanchier, Apocynum, 

 Arabia, Capsella, Chaerophyllum, Claytonia, Crataegus, Forsythia, Fragaria, Hex, 

 Ligustrum, Polemonium, Polytaenia, Potentilla, Primus, Pyracantha, Ranunculus, 

 Rhamnus, Rubus, Senecio, Sisymbrium, Spiraea, Taenidia, Toxicodeyidron, Viburnum, 

 Viola, Zizia. 



Andrena vestita Provancher, 1888. Addit. Corr. Faune Ent. Canada, Hym., p. 310. 6. 

 Preocc. 



Andrena nasonii Robertson, 1895. Amer. Ent. Soc, Trans. 22: 120. 9. 



Andrena harifordensis Cockerell, 1902. Ann. and Mag. Nat. Hist. (7) 9: 103. 9. 



Andrena {Andrena) nasonii var. fulvodorsata Viereck, 1917. Amer. Ent. Soc, Trans. 43: 

 385. 9. 



Taxonomy: Robertson, 1902. Amer. Ent. Soc, Trans. 28: 190, 192. 9, 6 (key). —Viereck, 

 1907. Ent. News 18: 283, 285. 9, 6 (key). -Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 

 141: 244-245, figs. 51-52, 54 (redescription). 

 opacella Timberlake. Calif. (Mt. Hamilton Range). Pollen: Unknown, but visits flowers of 

 Salix. 

 Ayidrena (Siynandreyia) opacella Timberlake, 1951. U. S. Natl. Mus., Proc 101: 406. 9. 

 opacibasis Cockerell. Calif. 



Andreyia {Platandrena) opacibasis Cockerell, 1936. Pan-Pacific Ent. 12: 146. 9. 

 opacissima Cockerell. Idaho, Wash, to Utah and Calif. Pollen: Unknown, but visits flowers of 

 Ceanothus cordulatus, Cryptantha intermedia, Lomatium, Salix lasiolepis. 

 Andrena opacissima Cockerell, 1918. Ann. and Mag. Nat. Hist. (9) 1: 165. 9. 



Taxonomy: Cockerell, 1933. Pan-Pacific Ent. 9: 158. 9. —Cockerell, 1936. Ann. and Mag. Nat. 

 Hist. (10) 18: 632. 

 opaciventris Cockerell. Calif. Pollen: Unknown, but visits flowers of Ceanothus crassifolins, C. 

 integerrimus, C. vestitus, Cryptantha intermedia, Lomatium dasycarpum, Pi-unus, 

 Ranunculus occidentalis, Rhamnus crocea, Salix lasiolepis, Sanicula tuberosa, S. 

 bipinnatifida. 

 Andrena opaciventris Cockerell, 1916. Pomona Jour. Ent. Zool. 8: 47. 9 . 

 orthocarpi Cockerell. Calif. Pollen: Unknown, but visits flowers of Achillea millefolium, 



Calycadenia multiglandulosa, Ceanothus cuneatus, C. soredatus, Limnanthes douglasii, 

 Lomatium utriculatum, Orthocarpus densiflorus, 0. lithospermoides. Ranunculus 

 califomicus, Salix lasiolepis, Phoradendron, Thysanocarpus curvipes. 

 Andrena {Platandrena) orthocarpi Cockerell, 1936. Pan-Pacific Ent. 12: 147. 9. 



Taxonomy: Lanham, 1947. Pan-Pacific Ent. 23: 72. 6. 

 pallidifovea (Viereck). B. C. to Calif., Utah. Pollen: Collects pollen from the flowers of 

 Compositae including Chaenactis, Ericameria cooperi, Eriophyllum, Helianthus 

 gracilentus, Layia, but visits other flowers for nectar including Gilia capitata, 

 Lasthenia chrysostoma. 

 Pterandrena pallidifovea Viereck, 1904. Canad. Ent. 36: 195, 227, 228. 6,9. 

 Andrena plumifera Cockerell, 1916. Canad. Ent. 48: 393. 9. 



Taxonomy: Timberlake, 1951. In Linsley, In Muesebeck, Krombein and Townes, U. S. Dept. 

 Agr., Agr. Monog. 2: 1075 (synonymy). —Timberlake, 1951. U. S. Natl. Mus., Proc. 101: 383. 

 6. 

 pensilis Timberlake. Calif. Pollen: Unknown, but visits flowers of Eriodictyon califomicum, 

 Eschscholzia califomica, Lasthenia chrysostoma, Limnanthes douglasii, Layia 

 platyglossa, Orthocarpus densiflorus, 0. lithospermoides, Ranunculus califomicus, 

 Sisyrinchium bellum. 

 Andrena (Platandrena) pensilis Timberlake, 1938. Pan-Pacific Ent. 14: 27. 9, S. 

 runcinatae Cockerell. B. C. and Alta. to Colo., N. Dak. 



Andrena runcinatae Cockerell, 1906. Amer. Mus. Nat. Hist., Bui. 22: 434. 9, S. 



