2050 Hymenoptera in America North of Mexico 



subfasciata miamiensis Mitchell. Southern Fla. Pollen: Unknown, but visits flowers of 

 Crotalaria. 



Osmia {Diceratos7nia) subfasciata niiamieyisis Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. 

 Bui. 152:84. 9,6. 

 subfasciata subfasciata Cresson. N. J. to Fla., west to south. Calif.; northern Mexico. Ecology: 

 Nests in abandoned beetle burrows, also accepts artificial nesting devices. Parasite: 

 Melittobia chalybii Ashm. Pollen: Polylectic, visits a wide variety of flowers including 

 Achillea, Acacia greggii, Amorpha fruticosa, Astragalus, Cercis canadensis, Coreopsis, 

 Gaillardia pulchella, Helenium tenuifolium, Helianthus, Heliotropium curassavicum 

 var. oculatum, Larrea tridentata, Lesquerella, Lotus scoparius, Machaeranthera 

 tenacetifolium , Marilaunidium origani folium, Mamibium vulgare, Medicago sativa, 

 Melilotus officinalis, Monarda citriodora, Oxalis, Palafoxia liiiearis, Parkinsonia 

 aculeata, Phacelia, Pluchea sericea, Prosopis juliflora, Prunus, Rhus, Rubus, Salix, 

 Sphaeralcea, Vicia. 



Osynia subfasciata Cresson, 1872. Amer. Ent. Soc, Trans. 4: 261. 9, 6. 



Osmia conjunctoides Robertson, 1893. Amer. Ent. Soc, Trans. 20: 276. 6. 



Osmia punctata Michener, 1936. South. Calif. Acad. Sci., Bui. 35: 85. 9. 



Biology: Linsley, 1946. Econ. Ent., Jour. 39: 24 (nest sites, pollination of alfalfa). —Mitchell, 

 1962. N. C. Agr. Expt. Sta. Tech. Bui. 152: 84 (nest). — Krombein, 1967. Trap-nesting 

 wasps and bees, pp. 311-312 (nest architecture, life history, parasite). 



Genus OSMIA Subgenus Unassigned 



angustipes Cockerell. Colo. 



Osmia angustipes Cockerell, 1933. Pan-Pacific Ent. 9: 158. 6. 

 claremontensis Michener. Mont., Wash., Oreg., Calif. Pollen: Unknown, but visits flowers of 



Arctostaphylos patula, Collinsia heterophylla, Crypta^itha intermedia, Phacelia distans, 

 Trifolium repens. 

 Osmia claremontensis Michener, 1936. South. Calif. Acad. Sci., Bui. 35: 84. 6. 



Taxonomy: Snelling, 1967. South. Calif. Acad. Sci., Bui. 66: 106-107 (tax. status). 

 foxi Cameron. N. Mex. 



Osmia Foxi Cameron, 1901. Amer. Ent. Soc, Trans. 27: 316. <J. 



NoMEN Nudum in Osmia 



Osmia pacifica Packard, 1892. Psyche 6: 340. 



Genus MEGACHILE Latreille 



This genus, which is nearly cosmopolitan in distribution, has until recently included all of the 

 so-called leaf-cutter bees regardless of whether the various species cut leaves with which to 

 make their nests or not. As currently restricted, those species which make their nests with 

 pieces of leaves or petals belong to the genus Megachile while those which use resin, mud, or 

 other such material have been assigned to Chalicodoma Lepeletier and Creightonella Cockerell. 

 The latter genus does not occur in the Western Hemisphere. Some authors have concluded that 

 Chelostomoides Robertson warrants generic rank rather than subgeneric status within the 

 genus Chalicodoma as it is treated here. 



Revision: Mitchell, 1934. Amer. Ent. Soc, Trans. 59: 295-361, pis. XX-XXI (Part I, 

 classification of Nearctic subgenera including key; n. spp.). —Mitchell, 1935. Amer. Ent. 

 Soc, Trans. 61: 1-44, pi. I (Part II, treats Nearctic spp. of subgenera Cressoniella, 

 Litomegachile, Neomegachile). —Mitchell, 1935. Ent. Soc. Amer., Trans. 61: 155-205, pis. 

 VIII-IX (Part III, treats Nearctic spp. of the subgenera Anthemois and Delomegachile). 

 -Mitchell, 1936. Amer. Ent. Soc, Trans. 62: 117-166, pis. VIII-XI (Part IV, treats 

 Nearctic spp. of the subgenera Derotropis, Megachiloides, Phaenosariis, and 

 Xanthosarus). -Mitchell, 1937. Amer. Ent. Soc, Trans. 62: 323-382, pis. XXII-XXVI 

 (Part V, treats Nearctic spp. of the subgenus Xeromegackile). —Mitchell, 1937. Amer. 

 Ent. Soc, Trans. 63: 45-83, pis. V-VI (Part VI, treats Nearctic spp. of the subgenera 

 Acentron, Argyropile, Leptorachis, Melanosarus and Pseudocentron). —Mitchell, 1937. 



