1668 Hymenoptera in America North of Mexico 



Biology: Leclercq, 1954. Monog. Syst., Phylogen., Zoogeogr. Hym. Crabron., pp. 307-308 (nest, 

 prey, refs. to bioi. in Europe). — Tsuneki, 1960. Fac. Liberal Arts, Fuitui Univ., Mem., Ser. 

 2, No. 10, pp. 47-48 (nest, prey). 

 xanthochilos Pate. Md. to Ga. west to Te.\., Mo., Kans., 111. Ecology: Nests in clay bank. Prey: 

 Condylostylus sp. 

 Crossocerus {Yuchiha) xanthochilos Pate, 1944 (1943). Lloydia 6: 274. 9. 



Taxonomy: Krombein, 1952. Amer. Ent. Soc, Trans. 78: 96. i. 



Biology: Rau, 1922. Acad. Sci. St. Louis, Trans. 24: 21 (nest; misdet. as scutellatus). 

 xanthognathus (Rohwer). Ariz.; Mexico (Chihuahua). 



Thyreopiis (Crossocerus) xanthognathus Rohwer, 1911. U. S. Natl. Mus., Proc. 40: 566. 9. 



Genus CROSSOCERUS Subgenus ABLEPHARIPUS Perkins 



Ahlepharipus Perkins, 1913. Ent. Soc. London, Trans., p. 390. 



Type-species: Crabro podagricus Vander Linden. Monotypic. 



The European podagricus usually nests in abandoned burrows of wood-boring Coleoptera, and 

 provisions the cells with small nematocerous and acalyptrate Diptera. A female of the rare 

 North American unicus was collected on the trunk of a dead hemlock, where, presumably, it 

 nested in an abandoned beetle boring. 



unicus (Patton). Conn., N. Y., Pa., Mich., Ind., Minn., Mont., Man. 

 Blepharipus unicus Patton, 1879. Canad. Ent. 11: 214. 9. 

 Stenocrabro nelli Viereck, 1904. Amer. Ent. Soc, Trans. 30: 241. 9. 



Genus CROSSOCERUS Subgenus EPICROSSOCERUS Ashmead 



E picrossocerus Ashmead, 1899. Canad. Ent. 31: 215. 

 Type-species: Crabro insolens Fox. Orig. desig. 

 insolens (Fox). N. Y., Mich., Mo., Colo., Utah, Ariz., Calif., Oreg. Ecology: Nests in Sambucus 

 stems. Parasite: Diomorus zabriskiei Cr. Prey: Pachyneuron sp.; Tetrastichus 

 pattersonae Full., T. sp. 

 Crabro insolens Fox., 1895. Amer. Ent. Soc, Trans. 22: 192. 9. 

 Crabro (E picrossocerus) universitatis Rohwer, 1909. Ent. News 20: 152. 9. N. syn. (R. C. 



Miller). 

 E picrossocerus raui Rohwer, 1923. Ent. Soc Wash., Proc 25: 99. 9. N. syn. (R. C. Miller). 



Biology: Parker and Bohart, 1966. Pan-Pacific Ent. 42: 94 (nest, prey, parasite). 

 Genus CROSSOCERUS Subgenus HOPLOCRABRO Thomson 



Crabro subg. Hoplocrabro Thomson, 1874. Hym. Scand., v. 3, p. 277. 

 Type-species: Crabro quadrimaculatus Fabricius. Monotypic. 



The European quadrimaculatus nests in sandy soil and provisions with nematocerous and 

 brachycerous Diptera and Trichoptera. 



Taxonomy: Pate, 1942. Canad. Ent. 74: 177-185, 5 figs. 

 angelicus (Kincaid). Nebr., Alta., Mont, and Wyo. west to B. C. and north. Calif. Prey: Muscoid 

 Diptera. 

 Crabro angelicus Kincaid, 1900. Ent. News 11: 358. "9" = 6. 

 Crabro (Hoplocrabro) vierecki Smith, 1908. Nebr. Univ. Studies 8: 401. 9. 

 Crabro (Hoplocrabro) boulderensis Rohwer, 1909. Ent. News 20: 323. 6. 

 Crabro (Hoplocrabro) spinibticcus Viereck, 1909. Ent. Soc. Wash., Proc. 11: 44. 9. 



Biology: Krombein, 1967. U. S. Dept. Agr., Monog. 2, Sup. 2: 420 (prey). 



Genus CROSSOCERUS Subgenus BLEPHARIPUS Lepeletier and Brulle 



Blepharipus Lepeletier and Brulle, 1834. Soc. Ent. France, Ann. 3: 728. 



Type-species: Blepharipus nigrita Lepeletier and Brulle. Desig. by Ashmead, 1899. 

 Crabro subg. Coelocrabro Thomson, 1874. Hym. Scand., v. 3, p. 262. 



