1824 Hymenoptera in America North of Mexico 



Taxonomy: Ribble, 1974. Amer. Ent. Sec, Trans. 100: 166-170, figs. 1, 8, 90-94 (redescription). 



Biology: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 168, table 5 (floral relationships). 

 cruciferarum Ribble. Calif. Pollen: Unknown, but visits flowers o{ Amsinckia, Brassica, 

 Capsella bursa-pastoris, Phacelia, Sisymbrium irio. 

 Andrena {Scaphandrena) cruciferarum Ribble, 1974. Amer. Ent. Soc, Trans. 100: 128, figs. 

 1-2,29-33. $, d. 

 gordoni Ribble. Northeast. Calif., Oreg., Wash., Wyo. 



Andrena (Scaphandrena) gordoni Ribble, 1974. Amer. Ent. Soc, Trans. 100: 134, figs. 1-2, 

 39-43. 9,6. 

 hicksi Cockerell. Colo., Wyo., Utah and Nev. (Ruby Mts.). Parasite: Stylops sp. 

 Andrena hicksi Cockerell, 1925. Ann. and Mag. Nat. Hist. (9) 16: 628. 9 . 

 Andrena unicula Cockerell, 1934. Pan-Pacific Ent. 9: 155. 6. 



Taxonomy: Linsley, 1938. Calif. Acad. Sci., Proc (4) 23: 265. 9 (key). — Lanham, 1941. Ent. 

 Soc. Amer., Ann. 34: 705, 707. 9, 6 (key). —Lanham, 1941. Ent. Soc, Amer., Ann. 34: 707. 

 6 (key, as unicula). —Ribble, 1974. Amer. Ent. Soc, Trans. 100: 164-166, figs. 1, 6, 85-89 

 (redescription, synonymy). 



Biology: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 165 (stylopization). 

 kaibabensis Ribble. Ariz., Utah. 



Andrena {Scaphandrena) kaibabensis Ribble, 1974. Amer. Ent. Soc, Trans. 100: 160, figs. 

 1,8. 9. 

 lomatii Ribble. Calif. Pollen: Unknown, but visits flowers of Lomatium dasycarpum, Rhus 

 trilobata, Salvia sonomensis, Sanicula nevadensis. 

 Andrena (Scaphandrena) lomatii Ribble, 1974. Amer. Ent. Soc, Trans. 100: 131, figs. 1, 5, 

 34-38. 9,6. 

 mackieae Cockerell. South. Oreg., Calif., Nev., Utah, Ariz.; Mexico (Baja California). Pollen: 

 Unknown, but visits flowers oi Aynsinckia, Arctostaphylos, Brassica, Ceanothus 

 cordulatus, C. crassifolius, C. cuneatus, C. integerrimus, C. verrucosus, Cryptantha, 

 Phacelia distayis, Plagiobothrys, Pninus virginiana, Rhamyms crocea, Rhus diversiloba, 

 Salix lasiolepis. 

 Andrena mackieae Cockerell, 1937. Amer. Mus. Novitates 899: 3. 9. 

 Andrena (,i Scaphandrena) mackiae(\) Lanham, 1949. Calif. Univ. Pubs. Ent. 8: 201. 



Taxonomy: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 144-149, figs. 1, 6, 59-63 (redescription). 



Biology: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 147, table 3 (floral relationships). 

 merriami Cockerell. B. C. to Calif., east to Mont., Nebr. Colo, and N. Mex. Pollen: Unknown, 

 but visits flowers of Acer, Astragalus, Cardaria draba, Claytonia, Daucus caroia, 

 Fraxinus, Gilia capitata, Hackelia patens, Lappula floribunda, Leptotaenia, 

 Lithophragma affinis, Lomatium ambiguum var. leptocarpuni, L. dissectum, L. 

 orientale, L. iritematum, Phacelia, Pninus demissa, P. virginiana, var. melanocarpa, 

 P. subcordata, Pyrus, Ranunculus, Salix, Taraxacum officinale, Thelypodium. 



Andrena merriami Cockerell, 1901. Psyche 9: 284. 9. 



Andrena pullmani Viereck, 1904. Canad. Ent. 36: 191, 195. 9,6. 



Andrena amplificata Cockerell, 1910. Canad. Ent. 42: 368. 9,6. 



Andrena fulvinigra Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 42. 9. 



Taxonomy: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 150-155, figs. 1, 3, 64-69 (redescription, 

 synonymy). 



Biology: Ribble, 1974. Amer. Ent. Soc, Trans. 100: 153, table 4 (floral relationships). 

 mohavensis Ribble. South. Calif. (Mohave Desert). Pollen: Unknown, but visits flowers of 

 Lepidium flavum, Phacelia, Salix exigua. 

 Andrena {Scaphandrena) mohavensis Ribble, 1974. Amer. Ent. Soc, Trans. 100: 126, figs. 

 1,2,24-28. 9,6. 

 plana Viereck. Oreg., Calif. Pollen: Apparently oligolectic on Trifolium including T. 



involucratum, T. microcephalum , T. pratense, T. repens, T. tridentatum, T. variegatum, 

 but visits other flowers presumably for nectar including Brassica, Chamaebatia 



