Superfamily APOIDEA 1807 



Taxonomy: Morice and Cockerell, 1901. Canad. Ent. 33: 123, 124. 9, 6 (types). — Cockerell, 

 1906. Psyche 13: 36. 9 (type). -Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 

 134-135 (stylopization and its possible effect on tax. characters). 



Genus ANDRENA Subgenus MICRANDRENA Ashmead 



Micrandrena Ashmead, 1899. Amer. Ent. Soc, Trans. 26: 89. 



Type-species: Andrena melanochroa Cockerell. Monotypic and orig. desig. 

 {=Micrandrena pacifica Ashmead). 

 Andrena subg. Andrenella Hedicke, 1933. Berlin Zool. Mus., Mitt. 19: 210. 



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



Revision: Kibble, 1968. Nebr. Univ. State Mus., Bui. 8: 242-333, figs. 1-89, maps 1-10, tables 

 1-11 (N. Amer. spp.). 



Taxonomy: Lanham, 1949. Calif. Univ. Pubs. Ent. 8: 208 (tax. characters). — LaBerge, 1964. 



Nebr. Univ. State Mus., Bui. 4: 301 (tax. characters). 

 annectens Kibble. Calif. (San Benito Co.). Pollen: Unknown, but visits flowers of Salix. 



Andrena (Micrandrena) annectens Kibble, 1968. Nebr. Univ. State Mus., Bui. 8: 323, figs. 

 80-84. 9,6. 

 candidiformis Viereck and Cockerell. B. C. and Wash, to Calif., east to Wyo., Colo, and Ariz. 

 Pollen: Polylectic, visits a wide variety of flowers including Arctostaphylos patula, A. 

 pungens, Arenaria douglasii, Baccharis, Ceanoihus cordulatus, C. C7ineatus, C. 

 divaricatus, C. greggii, C. integerrimus, Chamaebatia foliolosa, Crepis, Cryptantha, 

 Eriodictyon califomicum, Eriogonum, Heracleum lanatuni, Linuni lewisii, Lomatium 

 dissectum, L. tritematum, Mains, Montia perfoliata, Nemophila menziesii, Physocarpa 

 intermedia. Primus subcordata, P. virginiana, Pyrus, Ranunculus califomicus, 

 Rhaynnus califomicus, Ribes nevadense, Salix foliosus, S. laevigata, S. lasiolepis, 

 Solanum umbelliferum. Taraxacum, Thysanocarpus curvipes, Trifolium, Veronica 

 americana, Wyethia. 



Andrena candidiformis Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 33. i . 



Andrena nigritarsis Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 53. 2. 



Andrena semotula Cockerell, 1936. Pan-Pacific Ent. 12: 149. i. 



Taxonomy: Cockerell, 1936. Pan-Pacific Ent. 12: 150. i. —Lanham, 1941. Ent. Soc. Amer., 

 Ann. 34: 706, 708. 9, 6 (key). — Timberlake, 1951. In Linsley, In Muesebeck, Krombein 

 and Townes, U. S. Dept. Agr., Agr. Monog. 2: 1060 (synonymy). —Kibble, 1968. Nebr. 

 Univ. State Mus., Bui. 8: 288-293, figs. 49-53, map 4 (redescription, synonymy). 



Biology: Kibble, 1968. Nebr. Univ. State Mus., Bui. 8: 291-292, table 6 (floral relationships, 



stylopizatiom). 

 chlorogaster Viereck. B. C. to Calif., east to Idaho, Utah and Ariz. Parasite: Stylops duboisi 

 Bohart, Imparipes sp. Pollen: Polylectic, visits a wide variety of flowers including 

 Alyssum maritimum, Amsinckia, Arctostaphylos Crustacea, A. glauca, A. mariposa, A. 

 pungens, Baccharis, Brassica, Capsella bursa-pastoris, Ceanothus crassifolius, C. 

 cuneatus, C. greggii, C. orcuttii, C. soredatus, Cercocarpus betuloides, Collinsia 

 heterophylla, Cryptantha, Daucus, Descourainia sophia, Eriodictyon califomicum, 

 Geranium molle, Gilia, Lasthenia chrysostoma, Layia glandulosa, Loynatium 

 dasycarpum, L. dissectum, L. tritematum, L. utriculatum, Montia perfoliata, 

 Nemophila menziesii, Phacelia ciliata, P. distans, Pmnns subcordata, Ratiunculus 

 califomicus, R. canus, Rhaynnus crocea, Rhus diversiloba, Salix gooddiyigii, S. 

 lasiolepis, S. leucodeyidroides, S. nigra, Saynbucus, Sanicula bipiyniatifida, S. 

 crassicauiis, S. yievadensis, S. tuberosa, Sedum, Sisyyubriuyn irio, Soyichus, Taniarix, 

 Taraxacum officiyiale, Trifoliuyn pratense. 



Ayidreyia chlorogaster Viereck, 1904. Canad. Ent. 35: 189. 9. 



Ayidreyia subtilicoryiis Viereck, 1926. Pomona Jour. Ent. Zool. 18: 4. d. 



Ayidreyia {Micrayidrena) nitidicomis Cockerell, 1936. Pan-Pacific Ent. 12: 144. 6. 



Ayidreyia catalinica Cockerell, 1939. Pomona Jour. Ent. Zool. 31: 25. 9. 



Ayidreyia (Micr ayidreyia) chlorogaster nesiotes Timberlake, 1951. U. S. Natl. Mus., Proc. 

 101: 394. d. 



