Superfamily APOIDEA 2041 



phenax Cockerell. N. Mex. 



Osmia phenax Cockerell, 1897. Canad. Ent. 29: 66. 9. 

 prunorum Cockerell. N. Mex. 



Oswia prunorum Cockerell, 1897. Canad. Ent. 29: 65. 9 (c? misdet.). 

 pumila Cresson. Que. to Ga., west to 111., Minn., Kans. Ecology: Readily nests in borings. 

 Parasite: Chaetodactylus^ sp., Chrysura pacifica (Say), Leucospis affiuis Say, 

 Melittobia chalybii Ashm., Pyemotes ventricosus (Newport), Sapypa centrata Say. 

 Pollen: Apparently polylectic, visits a wide variety of flowers including Anemonella, 

 Antennaria, Arabis, Astragalus, Barbarea, Camassia, Cardamine, Cercis, 

 Chaerophyllum, Claytonia, Collinsia, Comandra, Cbnius, Crataegus, Dentaria, 

 Diospyros, Ellisia, Erigevia, Erythronunn, Fragaria, Geranium, Houstonia, Isopyrum, 

 Krigia, Malus, Maiva, Melilotus, Mertensia, Nepeta, Oxalis, Pedicularis, Penstemon, 

 Polemonium, Potentilla, Rayiunculus, Ribes, Rosa, Rubus, Salix, Sassafras, Scutellaria, 

 Sisyrinchiu7)i, Synilax, Taraxacum, Trifolium, Vaccinium, Vibunmm, Vicia, Viola, 

 Zantlioxylum, Zizia. 



Osmia pumila Cresson, 1864. Ent. See. Phila., Proc. 3: 35. 9. 



Osmia vidua Cresson, 1864. Ent. Soc. Phila., Proc. 3: 88. 6. 



Osmia pumilia(\) Pearson, 1933. Ecol. Monogr. 3: 381. 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 312-318, tables 32-33 (nest 

 architecture, life history, supersedure, parasites). — Medler, 1967. Ent. Soc. Amer., Ann. 

 60: 342, table 1 (nest architecture, life history, parasite). 

 sandhouseae Mitchell. New England to Fla., west to Tex. Pollen: Unknown, but visits flowers 

 of Astragalus, Claytonia, Crataegus, Fragaria, Gaylussacia, Geranium, Ilex, Iris, 

 Linaria, Lupiuus, Oenothera, Pedicularis, Penstemon, Polycodium, Rubus, Tephrosia, 

 Toxicodendron, Trifolium, Vaccinium, Vicia. 

 Osmia albohirta Mitchell, 1924. Elisha Mitchell Sci. Soc, Jour. 40: 164. 9. Preocc. 

 Osmia sandhouseae Mitchell, 1927. Psyche 34: 178. N. name. 

 soiitaria Sandhouse. Calif. 



Osmia soiitaria Sandhouse, 1924. Calif. Acad. Sci., Proc. (4) 13: 346. 6. 



Taxonomy: Michener, 1949. Kans. Ent. Soc, Jour. 22: 55. 

 titusi Cockerell. South. Calif., N. Mex.? Pollen: Unknown, but visits flowers of Astragalus 

 fremontii, Lotus, LaiTea tridentata, Lupinus sparsifolius, Phacelia fremontii. 

 Osmia titusi Cockerell, 1905. Canad. Ent. 37: 370. 9. 



Genus OSMIA Subgenus CHENOSMIA Sinha 



Osmia Subg. Chenosmia Sinha, 1958. Kans. Univ. Sci. Bui. 39: 233. 

 Type-species: Osmia pentstemonis Cockerell. Orig. desig. 

 atriventris Cresson. N. S. to Alta., south to la.. 111., Tenn. and Ga. Ecology: Readily nests in 

 artificial nesting devices. Parasite: Chrysis coerulans Fabr., Dibrachys maculipennis 

 Szelenyl?, Leucospis affinis Say, Sapyga sp., Stelis foederalis Sm. Pollen: Unknown, but 

 visits flowers of Ara6/s, Astragalus, Barbarea, Cardatnine, Cercis cayiadensis. 

 Chrysanthemum leucanthenium, Claytonia, Collinsia, Ellisia, Erigenia, Fragaria, 

 Geranium, Gillenia, Hydrangea, Hypoxis, Lithospermum, Mertensia, Nothoscordum, 

 Penstemon, Polemonium, Psoralea, Rubus, Trifolium, Uvularia, Vaccinium, Vicia, 

 Viola, Zizia. , 



Osmia atriventris Cresson, 1864. Ent. Soc. Phila., Proc. 3: 29. 9. 



Biology: Fye, 1965. Canad. Ent. 97: 872-874, fig. 4, tables 3-4 (nest architecture, life history, 

 parasites). 

 bruneri Cockerell*. Mont, to N. Mex., west to B. C. and Calif. Pollen: Unknown, but visits 

 flowers of Chamaebatia foliolosa, Clarkia rhomboidea, Collinsia heterophylla, 

 Eriodictyon catifornicum, Erysimum perenne. Geranium molle, Gilia capitata, 

 Hesperochiron, Lepechinia calycina, Lotus argophyllus, L. scoparius, Limnanthes 

 douglasii, Lupinus lobbii var. lyallii, Malacothanrnus arcuatus, Medicago sativa, 

 Mimulus guttatus, Monardella lanceolata, Nemophila spatulata, Penstemon 

 heterophylius, P. spectabilis, Phacelia distayis, P.frigida, P. heterophylla, P. iinbricata. 



