1500 Hymenoptera in America North of Mexico 



Type-species: Odynerus liictuosus Saussure. Monotypic. 



This is a primarily Neotropical genus of eumenid wasps, only one species being known from 

 North America. 



Revision: Bequaert, 1941. Amer. Mus. Novitates 1106: 1-10 (New World spp.). 



Taxonomy: van der Vecht, 1967. Bui. Zool. Nomencl. 24: 31 (request for validation of 

 Pseudodynerus Sauss., 1855). — Internatl. Comn. Zool. Nomencl, 1970. Bui. Zool. Nomencl. 

 26: 187 (validation of Pseudodynerus Sauss., type-species Odynerus hictuosus Sauss.). 

 quadrisectus (Say). N. J. to Fla., west to III, Kans., Okla., Tex., Colo. Ecology: Nests in 

 cavities in wood and makes cell partitions of mud. Prey: Caterpillars. 

 Odynerus quadrisectus Harris, 1833. In Hitchcock, Rpt. Geol. Mineral. Bot. Zool. Mass., p. 



589. Nom. nud. ascribed to Say. 

 Odynerus quadrisectus Say, 1837. Boston Jour. Nat. Hist. 1: 385. i, 9. 

 Odynerus bellone Lepeletier, 1841. Hist. Nat. Ins. Hym., v. 2, p. 660. S, 9. 



Biology: Bequaert, 1925. Amer. Ent. Soc, Trans. 51: 78 (nest). — Rau, 1935. Brooklyn Ent. 

 Soc, Bui. 30: HI (nest, prey). — Krombein, 1967. Trap-nesting wasps and bees, pp. 45-46 

 (nest, prey, life history). 



Genus PARANORTONIA Bequaert 



Pachymenes subg. Paranortonia Bequaert, 1940. Ent. Soc. Amer., Ann. 33: 100. Bertoni, 

 1934 (Rev. Soc. Cient. Paraguay 3: 109), proposed Paranortonia as a new genus. His 

 name is invalid because he did not designate a type-species (Art. 13 (b), Internatl. Code 

 Zool. Nomencl). 



Type-species: Nortonia tolteca Saussure. Orig. desig. 



symmorphus sonorensis Bequaert. Colo., Ariz. 



Pachymenes symmorphus sonorensis Bequaert, 1940. Ent. Soc. Amer., Ann. 33: 101. cJ, 9. 

 symmorphus symmorphus (Saussure). U. S. west to Tex., Okla., Kans., Iowa. 



Odynerus {Odynerus) Symmorphus Saussure, 1855. Etudes sur la famille des Vespides, v. 

 3, p. 246. 6, 9. 

 symmorphus toltecus (Saussure). Ariz., Tex.; Mexico (Sonora, Jalisco). 



Nortonia Tolteca Saussure, 1875. Smithsn. Inst., Misc. Collect. 254: 140. cJ, 9. 



Genus ANCISTROCERUS Wesmael 



Ancistrocerus Wesmael, 1836. Acad. Sci. Bruxelles, Bui 3: 45. 



Type-species: Vespa parietum Linnaeus. Desig. by Girard, 1879. 

 Euayicistrocerus Dalla Torre, 1904. In Wytsman, Gen. Ins., fasc. 19, p. 36. N. name. 



Most species of Ancistrocerus nest in pre-existing cavities, such as borings in twigs, stems and 

 structural lumber, in abandoned galls, in abandoned mud-dauber cells, and in old burrows of 

 ground-nesting wasps and bees; a few species build complete mud cells. Only lepidopterous lar- 

 vae have been recorded as prey of North American species, but a European species is reported 

 to prey upon coleopterous larvae. 



Revision: Bequaert, 1944. Ent. Amer. (n. s.) 23: 225-286 (N. Amer. spp.). 

 adiabatus adiabatus (Saussure). Transcontinental and widespread in southern Canada and U. 

 S. Ecology: Nests have been reported from borings in twigs, stems and wood, galls of 

 other insects, old mud-dauber nests, empty sawfly cocoons, and rubber tubing. Parasite: 

 Vespacarus tigris Bak. and Cunl; Anthrax irroratus Say; Amobia distorta (Allen), A. 

 floridensis (Allen); Pseudoxenos tigridis Pierce; Acroricnus junceus (Cr.), Ephialtes 

 decumbens (Tow.), E. sp., Calliephialtes notandus Cr., Argothereutes lophyri, n. subsp.; 

 Melittobia chalybii Ashm.; Monodontomerus dentipes (Dalm.); Chrysis coerulans P., C. 

 nitidula F. Prey: Psilocorsis sp., Oecophoridae sp.; Griselda radicana Wals., 

 Olethreutidae spp. Coleotechnites sp., Eucordylea sp., Gelechiidae spp.; Spilonota 

 ocellana (D. and S.), Acleris variana Fern., Tortricidae sp.; Coleophora fletcherella 

 Fern.; Phaloniidae sp. Predator: Philanthus zebratus nitens (Bks.), P. solivagus Say. 

 Odynerus {Ancistrocerus) adiabatus Saussure, 1852. Etudes sur la famille des Vespides, v. 

 1, p. 122. 6. 



