Superfamily APOIDEA 1825 



foliolosa, Cryptantha, Gilia, Lasthenia chrysostoma, Layia platygiossa var. breviseta, 

 Limnanthes douglasii, Nernophila, Orthocarpus faiicibarbatus, Plagiobothrys 

 nothofulvus, Ranunculus, Rhus trilobata, Sisyrinchium bellum, Vicia. 

 Andrena plana Viereck, 1904. Canad. Ent. 36: 193. 9. 



Taxonomy: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 141-144, figs. 1, 7, 54-58 (redescription). 

 primulifrons Casad. Tex. to Ariz, and south. Nev. (Hoover Dam). Pollen: Possibly an oligolege 

 of Lesquerella including L. densiflora, L. gordonii, L. ludoviciana, but visits other 

 flowers including Descourainia pinnata, Ditkyraea wislizenii, Larrea tridentata, 

 Lobularia, Machaeranthera tanacetifolia, Oreocarya, Phacelia crenulata, Physaria, 

 Prunus, Sisymbriuvi. 

 Andrena primulifrons Casad, 1896. Canad. Ent. 28: 183. <J, 9. 



Taxonomy: Cockerell, 1898. Denison Univ. Sci. Labs., Bui. 11: 48, 49. S, 9 (key). —Ribble, 

 1968. Nebr. Univ. State Mus., Bui. 8: 328-332, figs. 85-87, map 10, table 11 (redescription). 

 —Ribble, 1974. Amer. Ent. Soc, Trans. 100: 104, fig. 1 (subgeneric position). 

 santaclarae Ribble. Calif. Pollen: Unknown, but males visit flowers of Cryptantha, Lasthenia, 

 Nemophila, Prunus subcordata. 

 Andrena (Scapha7idrena) santaclarae Ribble, 1974. Amer. Ent. Soc, Trans. 100: 136, figs. 

 1,4,44-48. 9,6. 

 scurra Viereck. B. C. to Calif., east to Idaho and north. Utah. Pollen: Unknown, but visits 



flowers of Achillea lanulosa, Baccharis, Brassica campestris, Capsella bursa-pastoris, 

 Cardaria draba, Ceanothus greggii, C. pahneri, Cosmos, Cotoneaster, Descourainia 

 Sophia, Lepidium, Lomatium dissectum, L. tritematum, Medicago sativa, Prunus 

 subcordata, Salix, Scrophularia califomica. Sisymbrium altissimum. Spiraea, 

 Taraxacum, Thlaspi arvense. Hybridizes with A. arabis Robertson and A. capricomis 

 Casad and Cockerell in the Great Basin area of the western United States and in the 

 Rocky Mountain area. 

 Andrena scurra Viereck, 1904. Canad. Ent. 36: 193, 195. 9 , <J . 



Taxonomy: Ribble, 1973. Ent. Soc. Amer., Ann. 66: 1281-1286 (hybridization). —Ribble, 1974. 



Amer. Ent. Soc, Trans. 100: 110-115, figs. 1, 9-13 (redescription). 

 scurra x arabis x capricomis Hybrids. Idaho, Wyo., Colo., Utah, Nev. and along the east slope 

 of the Rocky Mountains from north. N. Mex. to south. Alta; Calif. (Seven Oaks) and 

 Ariz. (Fredonia). Pollen: Apparently polylectic, exhibits a preference for the flowers of 

 the family Cruciferae, but visits a variety of flowers including Agoseris, Astragalus, 

 Brassica, Cardaria draba, Cleome semdata, Euphorbia, Lappula floribunda, Lepidium 

 virginicum var. medium, Lesquerella ovalifolia, Oxytropis, Philadelphus, Physaria 

 didymocarpa, Prunus, Ribes, Senecio canus. Sisymbrium altissimum, S. pinnatum, 

 Taraxacum officinale. 



Andrena sieverti Cockerell, 1906. Amer. Mus. Nat. Hist., Bui. 22: 436. 9. 



Andrena lappulae Cockerell, 1906. Amer. Mus. Nat. Hist., Bui. 22: 437. 3. 



Andrena ellisiae Cockerell, 1914. Ann. and Mag. Nat. Hist. (8) 14: 9. 9. 



A7idrena montrosensis Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc 48: 48. 9. 



Andrena speculifera Cockerell, 1930 (1929). N. Y. Ent. Soc, Jour. 37: 444. 9. 



Andre7ia physariae Cockerell, 1934. Pan-Pacific Ent. 9: 154. 9. 



Andrena sieverti var. opacicauda Cockerell, 1936. Amer. Mus. Novitates 831: 1. 9. 



Taxonomy: Cockerell, 1931. Amer. Mus. Novitates 458: 13. 9 (key, as sieverti). — Lanham, 

 1941. Ent. Soc Amer., Ann. 34: 706. 9 (key, as ellisiae). —Lanham, 1941. Ent. Soc. Amer., 

 Ann. 34: 706. 9 (key, as physariae). —Ribble, 1973. Ent. Soc Amer., Ann. 66: 1281-1286 

 (hybridization). —Ribble, 1974. Amer. Ent. Soc, Trans. 100: 122-126 (synonymy). 



Biology: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 124, table 2 (floral relationships, 

 stylopization). 

 shoshoni Ribble. Wyo. (Big Horn and Foxpark). 



Andrena (S cap hand rena) shosho7ii Ribble, 1974. Amer. Ent. Soc, Trans. 100: 172, figs. 1, 

 8. 9. 



