2076 Hymenoptera in America North of Mexico 



Unknown, but visits flowers of Amorpha, C hamaebatia millefolium, Geranium, 

 Helianthus, Lathyriis odoratus, Lotus, Marrubium vulgare, Medicago saliva, Melilotus, 

 Monarda, Opuntia, Phacelia, Phaseolus, Psoralea tenuiflora. Salvia, Trifolium, 

 Verbesina encelioides, Vicia. 



Megachile subexilis Cockerell, 1908. Entomologist 41: 292. 9. 



Megachile semiexilis Cockerell, 1908. Entomologist 41: 292. 9, 6. 



Biology: Hicks, 1927. Ent. News 38: 17-21 (nest architecture, parasite). — Hurd, 1958. Calif. 

 Univ. Pubs. Ent. 14: 273 (parasite). — Krombein, 1967. Trap-nesting wasps and bees, p. 343 

 (life history, nest architecture). 

 subspinotulata (Mitchell). Ariz. 



Megachile (C helostomoides) subspinotidata Mitchell, 1934. Amer. Ent. Soc, Trans. 59: 360. 

 9. 

 texensis (Mitchell). Tex. (Southmost in Cameron Co.). Pollen: Unknown, but visits flowers of 

 Parkinsonia. 

 Megachile (C helostomoides) texensis Mitchell, 1956. Pan-Pacific Ent. 32: 132. 9. 



Genus CHALICODOMA Subgenus PSEUDOMEGACHILE Friese 



Megachile subg. Pseudomegachile Friese, 1899. Die Bienen Europas 5: 36. 



Type-species: Megachile ericetorum Lepeletier. Desig. by Alfken, 1933. 

 Megachile subg. Archimegachile Alfken, 1933. Konowia 12: 56. 



Type-species: Megachile flavipes Spinola. Orig. desig. 



Taxonomy: Pasteels, 1965. Mus. Royal I'Afrique Cent., An. ser. 8, Zool. 137: 377 (synonymy). 

 lanata (Fabricius). Fla. (Miami). Ecology: Builds clay cells in cavities. An Indian species, 

 probably introduced into U. S. from Cuba, where it is also adventive. 

 Apis la7iata Fabricius, 1775. Systema Ent., p. 385. 9. 

 Apis purpurea Christ, 1791. Naturgesch. Insekt. Bienen, Wespen u. Ameisengeschl., p. 168, 



pi. 13, fig. 7. 

 Megachile Martindalei Fox, 1891. Amer. Ent. Soc, Trans. 18: 344. 9, d. 



Taxonomy: Moure, 1960. Studia Ent. 3: 108-109 (notes on type). —Pasteels, 1965. Mus. Royal 

 I'Afrique Cent., An. ser. 8, Zool. 137: 402-404 (synonymy). 



Biology: Home, 1870. Zool. Soc. London, Trans. 7: 176-177, pi. 19, figs. 11, 11a, lib. —Bodkin, 

 1918. Ent. Soc. London, Trans, p. 303. 



Genus COELIOXYS Latreille 



These bees are primarily cleptoparasitic in the nests of Megachile, but some species have been 

 reared from the nests of Chalicodoma as well as other bees including Xylocopa in India. 



Revision: Mitchell, 1973. N. C. State Univ., Contrib. Dept. Ent. 129 pp., 61 figs., frontis. 

 (subgenera of Western Hemisphere). —Baker, 1975. Kans. Univ. Sci. Bui. 50: 649-730, 49 

 figs., 1 table (Nearctic spp. of subg. Boreocoelioxys, Coelioxys, Schizocoelioxys, 

 Xerocoelioxys). 



Taxonomy: Cockerell, 1905. Psyche 12: 87. -Cockerell, 1912. Canad. Ent. 44: 168. 

 —Crawford, 1914. Ent. Soc. Amer., Ann. 7: 148. — Sladen, 1915. Canad. Ent. 47: 205 

 (Ontario spp.). —Cockerell, 1921. Amer. Mus. Novitates 21: 7. —Cockerell, 1925. 

 Pan-Pacific Ent. 1: 150. -Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bui. 152: 192-232, figs. 

 1, 63-66, table 7 (eastern U. S. spp.). -Baker, 1971. Kans. Ent. Soc, Jour. 44: 225-235, 40 

 figs; 1 table (larval development and sexual dimorphism). 



Biology: Graenicher, 1927. Ent. News 38: 231-235, 273-276 (life history) 



Morphology: Pasteels and Pasteels, 1971. Acad. Sci. Paris, Compt. Rend. 273: 1580-1581 

 (structure of tergal plates). 



Genus COELIOXYS Subgenus COELIOXYS Latreille 



Coelioxys Latreille, 1809. Gen. Crust. Ins., v. 4, p. 166. 



