1788 Hymenoptera in America North of Mexico 



arctostaphylae Ribble. Calif. Pollen: Apparently an oligolege of Arctostaphylos including A. 

 Crustacea, A. glauca, A. mariposa, A. pungens. 

 Andrena (Derandrena) arctostaphylae Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 344, 

 figs. 95-99, map 12. 9, 6. 

 californiensis Ribble. Calif. Pollen: Unknown, most often collected on flowers of Salix 



including S. argophylla, S. lasiolepis, but visits a wide variety of flowers including 

 Arctostaphylos pungens, Cryptantha intermedia, Descourainia sophia, Eriodictyon 

 caiifornicuni, Gilia multicaulis, Lasthenia chrysostoma, Lomatimn dasycarpmn, 

 Orthocarpus, Plagiobothrys nothofulvus, Quercus, Rhamnus crocea, Rhus trilobata, 

 Ribes indecorum. Salvia columbariae. Sisymbrium irio, Tamarix gallica, Trifolium. 

 Andrena (Derandrena) califomiensis Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 348, 

 figs. 100-104, map 13, table 13. 9, cJ. 

 hermosa Ribble. Calif. (Central Valley). Pollen: Unknown, but possibly oligolectic on 

 Lasthenia. 

 Andrena (Derandrena) hermosa Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 360, figs. 

 115-119, map 18. 9, S. 

 murietae Ribble. Calif. (11 miles northwest of California Hot Springs). A. penutiani Ribble 

 may be the male. 

 Andrena (Derandrena) murietae Ribble, 1968. Nebr. Univ. State Mus. Bui. 8: 346. 9. 

 penutiani Ribble. Cent. Calif. Pollen: Unknown, but visits flowers of Lasthenia. A. murietae 

 Ribble may be the female. 

 Andrena (Derandrena) penutiani Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 352, map 

 15. d. 

 timberlakei Cockerell. Calif. (San Benito and Tulare Cos., south to Riverside Co.). Pollen: 

 Based upon the mouth parts of the female, this species evidently collects pollen from 

 the flowers of Cryptantha including C. intermedia, but visits other flowers presumably 

 for nectar including Descourainia sophia, Encelia farinosa, Lomatium dasycarpum, 

 Plagiobothrys califomicus, P. nothofulvus, Rhamnus crocea. 

 A7idrena timberlakei Cockerell, 1929. Ann. and Mag. Nat. Hist. (10) 4: 300. 9,6. 



Taxonomy: Cockerell, 1931. Canad. Ent. 64: 158. 9,6. 

 vandykei Cockerell. South. Oreg. (12 miles southwest of Keno), Calif.; Mexico (Baja California). 

 Pollen: Unknown, most often collected on flowers of Arctostaphylos including A. 

 Crustacea, A. glauca, A. mariposa, A. pungens as well as Ceanothus including C. 

 arboreus, C. cuneatus, C.foliosus, but visits other flowers including Baccharis, 

 Phoradenron villosum, Rhamnus crocea, Rhus diversiloba, R. ovata, Salix, Tamarix, 

 Xylococcus bicolor. 

 Andrena (Micrandrena) solutula Cockerell, 1936. Pan-Pacific Ent. 12: 150. 9. 

 Andrena (Micrandrena) vandykei Cockerell, 1936. Pan-Pacific Ent. 12: 151. 6. 

 viridissima Ribble. Calif.; Mexico (Baja California). Pollen: Unknown, but visits flowers of 

 Brassica, Lasthenia tenella, Nemophila raceinosa, Phacelia ciliata, P. distaiis, P. 

 douglasii, Pholisma racemosa. Ranunculus canus. 

 Andrena (Derandrena) viridissima Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 360, figs. 

 115-119, map 18. 9, 6. 

 ziziaeformis Cockerell. Mass. to Ga., Tenn., 111. Pollen: Unknown, but visits flowers of 

 Potentilla including P. canadensis, Rubus, Waldsteinia. 

 Andrena ziziaeformis Cockerell, 1908. Canad. Ent. 40: 234. 9. 



Taxonomy: Cockerell, 1932. Canad. Ent. 64: 157. 9 (key). -Mitchell, 1960. N. C. Agr. Expt. 

 Sta. Tech. Bui. 141: 169-171, figs. 29-32 (redescription). 



Genus ANDRENA Subgenus DIANDRENA Cockerell 



Diandrena Cockerell, 1903. Psyche 10: 75. 



Type-species: Panurgus chalybaeus Cresson. Orig. desig. 



Revision: Thorp, 1969. Calif. Univ. Pubs. Ent. 52: 1-146, 88 figs, 5 tables, 13 maps (N. Amer. 

 spp., includes comparative ecological information). 



