1820 Hymenoptera in America North of Mexico 



atypica (Cockerell). Oreg (Klamath Falls), Calif.; Mexico (Baja California). Pollen: Apparently 

 polylectic with some preference for flowers of Cryptantha, Salix, Rhus, Rhainnus and 

 Ceanothus in approximately that order; visitation records include Adenostoma 

 fasciculatum, Allimn haematochiton, Arctostaphylos bicolor, Baccharis, Brassica, 

 Ceanothus crassifolius, C. cuneatus, C. greggii, C. soredahcs, C. verrucosus, Cryptantha 

 intermedia, Emmenanthe penduliflora, Gilia capitata, G. multicaulis, Lomatium 

 dasycarpum, Marah macrocarpus, Oenothera, Plagiobothrys nothofulvus, Pnnius 

 ilicifolia, Quercus, Rhamnus califomica, R. crocea, Rhus diversiloha, R. integrifolitim, 

 R. ovata, R. trilobata, Rosa minutiflora, Salix argophylla. Salvia coiimibariae, S. 

 mellifera, Tamarix gallica. 

 Parandrena atypica Cockerell, 1941. San Diego Soc. Nat. Hist., Trans. 9: 347. 9. 



Taxonomy: Thorp, 1969. Calif. Univ. Pubs. Ent. 52: 123 (tax. characters and status). 

 Genus ANDRENA Subgenus PLASTANDRENA Hedickc 



Andrena subg. Plastandrena Hedicke, 1933. Berlin Zool. Mus., Mitt. 19: 217. 



Type-species: Melitta tibialis Kirby. Orig. desig. 

 Andrena subg. Schizandrena Hedicke, 1933. Berlin Zool. Mus., Mitt. 19: 218. 



Type-species: Andrena aulica Morawitz. Orig. desig. 



Revision: LaBerge, 1969. Amer. Ent. Soc, Trans. 95: 2-34, figs. 1-23, 3 tables (N. Amer. spp.). 



Taxonomy: Lanham, 1949. Calif. Univ. Pubs. Ent. 8: 201 (tax. characters, as Schizandrena). 

 — LaBerge, 1964. Nebr. Univ. State Mus., Bui. 4: 297 (tax. characters, synonymy). 

 argemonis Cockerell. Nebr. and Colo, south to N. Mex. and Ariz.; Mexico (Chihuahua, 



Coahuila, and Sonora south to Oaxaca). Pollen: Polylectic, visits flowers of Acacia, 

 Argemone mexicana, A. platyceras, Cleome serrulata, Medicago sativa, Melilotus alba, 

 Penstemon occidentalis, Persicaris pennsylvanicus, Sisymbrium irio. 

 Andrena argemonis Cockerell, 1896. Ann. and Mag. Nat. Hist. (6) 18: 80. 6 . 



Taxonomy: Cockerell, 1898. Ann. and Mag. Nat. Hist. (7) 2: 449. 9. —Cockerell, 1931. Amer. 



Mus. Novitates 458: 16. 9, d (key). —Lanham, 1941. Ent. Soc. Amer., Ann. 34: 704, 707. 9, 



6. —LaBerge, 1969. Amer. Ent. Soc, Trans. 95: 12-15, figs. 24-28 (redescription). 

 crataegi Robertson. Transcont. in southern Canada (N. S. to B. C.) and northern U. S., south 

 to Ga., Ala., Ark., Tex., N. Mex., Utah, Nev. and north. Calif. Pollen: Polylectic with 

 some preference for the flowers of the family Rosaceae, visits flowers of Amelanchier, 

 Amorpha, Aruncus, Astragalus, Barbarea, Blephilia, Brassica, Caragana, Cardaria, 

 Carduus, Castanea, Ceanothus, Chamaebatia foliolosa. Chrysanthemum, Conium, 

 Coruus, Crataegus, Crepis, Cryptantha intermedia, Daucus, Deutzia, Eulophus, 

 Euphorbia, Fragaria, Frasera, Gilia achillaefolia, Hackelia, Heracleum lanatum, 

 Holodiscus, Hydrangea, Ilex, Iris, Ledum, Lomatiuin dasycarpum, Malvastrum, 

 Melilotus, Monarda, Narcissus, Opulaster, Pastinaca, Philadelphus, Polytaenia, 

 Potentilla, Primus, Ptelea, Purshia, Pyracantha, Pyrus, Ranunculus, Raphajius, 

 Rhamnus, Rhododendron, Rhus, Rorippa nasturtium-aqtiaticum, Rosa, Rubus, Salix, 

 Senecio, Solidago, Sorbaria, Spiraea, Symphoricarpos, Taenidia, Tamarix, Taraxacum, 

 Thaspium, Trifolium repens, Vaccinium, Viburnum, Zizia. 



Andrena crataegi Robertson, 1893. Amer. Ent. Soc, Trans. 20: 273. 9, cJ. 



Andrena subcommoda Cockerell, 1902. Canad. Ent. 34: 45. 9. 



Andrena angusi Viereck, 1907. Ent. News 18: 284. 9. 



Taxonomy: Robertson, 1902. Amer. Ent. Soc, Trans. 28: 190. 9, 6 (key). — Atwood, 1934. 

 Canad. Jour. Res. 10: 208, 210. 9, 6 (key). —Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. 

 Bui. 141: 206-209, figs. 37-39, table 5 (redescription, synonymy). —LaBerge, 1967. Nebr. 

 Univ. State Mus., Bui. 7: 294 (subgeneric assignment, angusi). —LaBerge, 1969. Amer. 

 Ent. Soc, Trans. 95: 5-12, figs. 1, 24-28 (redescription). 



Biology: Rau, 1922. Acad. Sci. St. Louis, Trans. 24: 33-34 (nest). —Clements and Long, 1923. 

 Carnegie Inst. Wash., Pub. 326: 249 (ecology). — Brittain, 1933. Canada Dept. Agr., Bui. 

 162: 94, figs, (floral relationships). —LaBerge, 1969. Amer. Ent. Soc, Trans. 95: 11, table 1 

 (floral relationships). 



