Superfamily APOIDEA 1847 

 Genus MEGANDRENA Cockerell 



Genus MEGANDRENA Subgenus MEGANDRENA Cockerell 



Andrena subg. Megandrena Cockerell, 1927. Pan-Pacific Ent. 4: 42. 



Type-species: Andrena {Megandrena) eyiceiiae Cockerell. Monotypic. 

 enceliae (Cockerell). Ariz., south. Calif., deserts. Pollen: Oligolectic on flowers of Larrea 



tridentata, but visits other flowers for nectar including Argemone platyceros, Aster, 

 Cirsium, Encelia calif ortiica, E.farinosa, Eschscholzia darwinensis, Geraea canescens, 

 Ferrocactus ancanthodes, Opimtia basilaris, 0. echinocarpa. 

 Andrena (Megandrena) enceliae Cockerell, 1927. Pan-Pacific Ent. 4: 43. 9. 



Biology: Kurd and Linsley, 1975. Smithsn. Contrib. Zool. 193: 23-24, table 14 (floral 

 relationships, sleep). 



Genus MEGANDRENA Subgenus ERYTHRANDRENA Zavortink 



Megandrena subg. Erythrandrena Zavortink, 1972. Ent. Soc. Wash., Proc. 74: 61. 



Type-species: Megandrena (Erythrandrena) meiitzeliae Zavortink. Monotypic and 

 orig. desig. 



mentzeliae Zavortink. Nev. (Spring Mts., northwest of Las Vegas). Pollen: Oligolectic on 

 flowers of Mentzelia tricuspis. 

 Megandrena (Erythrandrena) mentzeliae Zavortink, 1972. Ent. Soc. Wash., Proc. 74: 64, 

 figs. 1-3. V, d. 



Biology: Zavortink, 1972. Ent. Soc. Wash., Proc. 74: 69-75, figs. 2-3 (floral relationships, 

 mating, sleep). 



Genus ANCYLANDRENA Cockerell 



Andrena subg. Ancylandrena Cockerell, 1930. Pan-Pacific Ent. 7: 5. 



Type-species: Andrena (Ancylandrena) heterodoxa Cockerell. Monotypic. 



Revision: Zavortink, 1974. CaHf. Acad. Sci., Occas. Papers, 109: 1-36, 6 figs. (N. Amer. spp.). 

 atoposoma (Cockerell). South. Calif.; Mexico (Baja California and Sonora). Pollen: Apparently 

 collects pollen from the flowers of the leguminous genera Lotus and Lupinus including 

 Lotus glaber, L. scoparius, Lupinus formosus, L. hallii, L. paynei, but visits these and 

 other flowers for nectar including Calochortus splendens, Ceanothus, Convolvulus, 

 Cryptantha intermedia, Eriodictyon trichocalyx, Eriogonum fasciculatum, Gilia 

 virgata, Penstemon, Phacelia ramosissima, Sphaeralcea ambigua. 

 Andrena (Ancylandrena) heterodoxa Cockerell, 1930. Pan-Pacific Ent. 7: 6. 6, 9. Preocc. 

 Andrena atoposoma Cockerell, 1934. Pan-Pacific Ent. 10: 82. N. name. 

 koebelei (Timberlake). Southeast. Calif, and south. Nev. Pollen: Possibly ohgolectic on flowers 

 of Dalea including D.fremontii, but visits other flowers presumably for nectar including 

 Echinocactus, Oenothera refracta, Stanleya pinnata. 

 Megandrena (Ancylandrena) koebelei Timberlake, 1951. U. S. Natl. Mus., Proc. 101: 413. 

 6. 



Biology: Zavortink, 1974. Calif. Acad. Sci., Occas. Papers, 109: 28 (matinal behavior). 

 larreae Timberlake. N. Mex. (Lordsburg), west to south. Calif, and south. Nev., deserts. 



Parasite: Hexepeolus rhodogyne Linsley and Michener? Pollen: Oligolectic on flowers of 

 Larrea tridentata, but visits these flowers and others for nectar including Dalea greggii, 

 Prosopis jnliflora. 

 Megandrena (Ancylandrena) larreae Timberlake, 1951. U. S. Natl. Mus., Proc. 101: 411. 9, 

 6. 



Biology: Zavortink, 1974. Calif. Acad. Sci., Occas. Papers 109: 23 (floral relationships). 

 -Kurd and Linsley, 1975. Smithsn. Contrib. Zool. 193: 22-23, fig. 4, tables 2, 9, 11, 12-14 

 (floral relationships, parasite). 

 timberlakei Zavortink. Ariz, to south. CaHf. and south. Nev. Pollen: Apparently polylectic, 

 visits flowers of Dalea fremontii, Eriodictyon trichocalyx, Hyptis emoryi, Larrea 



