1744 Hymenoptera in America North of Mexico 



Bui. 13: 199-205, 2 figs. (N. Dak. spp.). —Stevens, 1951. N. Dak. Agr. Expt. Sta., Bimonthly 

 Bui. 14: 27-31, 59-64, 2 figs. (N. Dak. spp.). —Stevens, 1952. N. Dak. Agr. Expt. Sta., 

 Bimonthly Bui. 14: 105-112, 2 figs, (collecting, mounting, labeling, identifying, study, life 

 histories). -Michener, 1953. Kans. Univ. Sci. Bui. 35: 987-1102, figs. 1-287 (larvae). 



— Michener, 1954. Pan-Pacific Ent. 30: 63-70, fig. 1, table 1 (pupae). —Michener, 1954. 

 Amer. Mus. Nat. Hist., Bui. 104: 1-176, figs. 1-55, tables 1-3 (classification). —Michener, 

 1955. A century of progress in the natural sciences, pp. 575-579, Calif. Acad. Sci., San 

 Francisco (Apoidea). — LaBerge, 1956. Kans. Univ. Sci. Bui. 38: 501-531 (types in Snow 

 Entomological Museum). — Krunic, 1959. Zbornik Matice Srpske (Novi Sad) 17: 102-111 

 (transitional forms between solitary and social spp.). — Lanham, 1960. Ent. News 71: 85-86 

 (diagnostic characters). —Moure, 1960. Studia Ent. 3: 97-160 (Fabricius types of 

 Neotropical spp.). — Hurd, 1966. Ent. Soc. Amer., Bui. 12: 110-111 (distributional patterns 

 in west. N. Amer.). —Nielsen and Bohart, 1967. Ent. Soc. Amer., Ann. 60: 414-419, 18 figs, 

 (larval sex characters). — Covell, 1972. Ent. Soc. Wash., Proc. 74: 10-18 (Lovell types). 



— Kerr and da Silveira, 1972. Evolution 26: 197-202 (karyotypic evolution and tax. 

 implications). —Bohart and Knowlton, 1973. Utah Acad. Sci. Arts and Letters, Proc. 50: 

 1-9 (spp. of Curlew Valley of Utah and Idaho). —Brothers, 1975. Kans. Univ. Sci. Bui. 50: 

 586-587, 640-641 (phylogeny). — Moldenke, 1977 (1976). Wasmann Jour. Biol. 34: 147-178, 1 

 fig., 6 tables (evolutionary history and diversity of faunas of Chile and Pacific North 

 America). 



Biology: Loew, 1884. Jahrb. Bot. Garten 3: 69-118 (floral relationships, oligotrophy and 

 poly trophy). —Robertson, 1888. Bot. Gazette 13: 33-34 (effect of wind on behavior). 

 — Verhoeff, 1892. Zool. Anz. 15: 41-43 (relationships between host and parasitic bee 

 larvae). — Bulman, 1892. Sci. Gossip 329: 98-99 (floral constancy). —Robertson, 1899. Bot. 

 Gazette 28: 215 (oligotrophy). — Friese, 1899. Zool. Jahrb., Abt. Syst. 3: 847-870 (parasitic 

 bees and their hosts). —Bulman, 1902. Zoologist 6: 220-222 (floral constancy). 

 — Graenicher, 1905. Wis. Nat. Hist. Soc, Bui. 3: 153-167 (life history and habits of parasitic 

 bees). —Latter, 1906. Nature 74: 200 (how inquiline bees find their hosts). —Lovell, 1913. 

 Ent. News 24: 104-112 (origin of oligotrophy). —Robertson, 1914. Ent. News 25: 67-73 

 (origin of oligotrophy). —Lovell, 1914. Ent. News 25: 314-321 (origin of oligotrophism). 

 — Gutbier, 1915. Soc. Ent. Ross., Horae 41: 1-57, 2 pis. (classification and evolution of 

 nests). —Robertson, 1918. Ent. News 29: 340-342 (proterandry and flight behavior). 

 — Betts, 1920. Bee World 2: 10-11 (floral constancy). —Clements and Long, 1923. Carnegie 

 Inst. Wash., Pub. 336: 1-274 (experimental pollination). — Lutz, 1924. N. Y. Acad. Sci., Ann. 

 29: 181-283 (u. v. floral patterns and flower visiting habits). —Robertson, 1924. Ecology 5: 

 393-407 (phenology of entomophilous flowers). —Robertson, 1925. Ecology 6: 412-436 

 (heterotrophy). —Robertson, 1926. Psyche 33: 116-120 (phenology of inquiline and 

 nest-making bees). — Rau, 1926. Acad. Sci. St. Louis, Trans. 25: 157-277, 8 pis. (life 

 histories). —Hicks, 1926. Colo. Univ. Studies 15: 217-310 (nesting habits and parasites of 

 certain Boulder County, Colo. spp.). —Robertson, 1926. Ecology 7: 378-380 (list of 

 oligolectic spp.). —Robertson, 1928. List of visitors of 453 flowers, 221 pp., Carlinville, 

 Illinois. —Robertson, 1929. Psyche 36: 112-118 (phenology of oligolectic spp.). —Robertson, 

 1929. Flowers and insects, 221 pp., Lancaster, Pa., Science Press. —Bromley, 1930. N. Y. 

 Ent. Soc, Jour. 38: 159-175 (bee-killing robber flies). —Graenicher, 1930. Ent. Soc. Amer., 

 Ann. 23: 285-310 (bee-fauna and vegetation of Miami, Fla.). —Robertson, 1930. Ent. News 

 41: 154-157, 331-336 (proterandry and flight behavior). — Atwood, 1933. Canad. Jour. 

 Research 9: 443-457 (apple blossom visiting spp. in N. S.). — Cockerell, 1933. Amer. Nat. 

 67: 1-3 (excessive abundance). —Pearson, 1933. Ecol. Monog. 3: 374-441 (ecological 

 relationships of spp. in Chicago region). —Rau, 1933. Jungle bees and wasps of Barro 

 Colorado Island, 324 pp., 112 figs., Kirkwood, Mo. (life histories). —Hicks, 1934. Colo. Univ. 

 Studies 21: 265-271 (parasites). —Rau, 1934. Acad. Sci. St. Louis, Trans. 28: 219-224 

 (behavior of certain solitary and social spp.). —Betts, 1935. Bee World 16: 111-113 (floral 

 constancy). —Cockerell, 1935. Science 81: 458-459 (origin of higher flowering plants and 

 their insect visitors). —Graenicher, 1935. Ent. Soc. Amer., Ann. 38: 285-310 (bee-fauna and 

 vegetation of Wis., visitors). — Malyshev, 1935. Eos 11: 201-309, pis. III-XV (nesting 

 habits of solitary spp.). — Linsley and MacSwain, 1942. South. Calif. Acad. Sci., Bui. 40: 

 126-137 (nest drepredation by Pti7ius californicus Pic). —Linsley, 1942. Calif. Univ. Pubs. 



