2072 Hymenoptera in America North of Mexico 



pugnata pomonae Cockerell. Nev., Calif., Ariz. Pollen: Presumably polylectic, visits flowers of 

 Arctium, Chrysothamnus, Cirsium, Dicentra chrysantha, Mimiilus, Raillardella 

 scaposa, Senecio, Solidago, Sphenosciadium capitellatum, Symplwricarpos, Taraxacum 

 officinale, Viguiera multiflora, Wyethia 77iollis. 



Megachile pugnata var. pomonae Cockerell, 1916. Ann. and Mag. Nat. Hist. (8) 17: 278. 9. 

 pugnata pugnata Say. U. S. and south. Canada except lower Mississippi Valley, Gulf Coast, 

 and Calif., principally at moderate to high altitudes in southern part of range. Ecology: 

 Nests in borings in sumac twigs. Parasite: Coelioxys altei~nata Say. Pollen: Polylectic, 

 especially flowers of Compositae (Hehantheae; Cynarieae), visits flowers of Achillea 

 lanulosa, Arctium mimis, Asclepias, Aster, Besseya plantaginea, Blephilia, Brauneria 

 pallida, Carduus plattinus, C. undulatus, Chrysanthemuyn leucanthemum, Cicuta, 

 Cirsium califomicum, Cleome, Coreopsis, Dianthera, Erigeron, Helianthus tuberosus, 

 Lepachys, Marrubium vulgare, Melilotus, Nepeta, Phacelia, Rudbeckia liirta, R. 

 occidentalis, Senecio, Silphium, Solidago, Taraxacum officinale, Trifolium repens. 

 Verbena, Verbesina, Vernonia. 



Megachile pugnatus Say, 1837. Boston Jour. Nat. Hist. 1: 408. 6,9. 



Megachile scobiculata Smith, 1853. Cat. Hym. Brit. Mus., v. 1, p. 191. 6 . 



Megachile bucephala Smith, 1853. Cat. Hym. Brit. Mus., v. 1, p. 193. 9. 



Megachile disparilis Cresson, 1872. Amer. Ent. Soc, Trans. 4: 264. 6. 



Megachile lucrosa Cresson, 1872. Amer. Ent. Soc, Trans. 4: 267. 9. 



Gnathocera cephalica Provancher, 1882. Nat. Canad. 13: 233. 9. 



Megachile temporalis Friese, 1903. Ztschr. System. Hym. Dipt. 3: 247. 9 (6 misdet.). 



Taxonomy: Cockerell, 1905. Amer. Ent. Soc, Trans. 31: 337. 



Biology: Medler, 1964. Canad. Ent. 96: 918-921, 1 fig. (life history, nest architecture, 

 parasite). —Medler and Lussenhop, 1968. Wis. Univ. Res. Bui. 274: 27 (nest, parasites). 



Nomina Nuda in Megachile 



Megachile coloradensis Uhler, 1877. U. S. Geol. Geog. Survey, Bui. 3: 784. 

 Megachile consiviilis Evans, 1896. Canad. Ent. 28: 13. 



Genus CHALICODOMA Lepeletier 



This genus, which is represented in North America by two subgenera, contains a number of 

 subgenera in the Old World and one subgenus is present in South America. The bees of this 

 genus do not use pieces of leaves or petals in the construction of their nests, but rather use 

 resin, mud and other such materials. 



Revision: Mitchell, 1937. Amer. Ent. Soc, Trans. 63: 381-426, pis. XXVI-XXIX (Part VIII, 

 treats Nearctic spp. of the subgenus Chelostomoides; addenda and index to previous 

 parts). 



Taxonomy: Mitchell, 1956. Pan-Pacific Ent. 32: 129-138 (Key to Nearctic and Neotropical 

 spp.). — Michener, 1962. N. Y. Ent. Soc, Jour. 70: 17-29 (classification). —Mitchell, 1962. N. 

 C. Agr. Expt. Sta. Tech. Bui. 152: 181-190, figs. 59-62, table 6 (eastern U. S. spp.). 

 — Pasteels, 1965. Mus. Royal 1' Afrique Centr., Ann. Sci. Zool. 137: ix and 579 pp. 

 (classification). —Butler, 1965. Ariz. Agr. Expt. Sta. Tech. Bui. 187: 1-19 (Ariz. spp.). 

 —Michener, 1965. Amer. Mus. Nat. Hist., Bui. 130: 185-186 (classification). —Stephen, 

 Bohart and Torchio, 1969. The biology and external morphology of bees, pp. 53-54 

 (classification). 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 337-344 (life histories, nests, 

 associates). — Hurd and Linsley, 1975. Smithsn. Contrib. Zool. 193: 38-39, fig. 16 (Larrea 

 visiting spp.). 



Genus CHALICODOMA Subgenus CHALICODOMA Lepeletier 



Chalicodoma Lepeletier, 1841. Hist. Nat. Ins., Hym. 2: 309. 



Type-species: Apis muraria Fabricius. Desig. by Girard, 1879. 



The typical subgenus does not occur in North America. 



