350 Hymenoptera in America North of Mexico 



Pseudorhyssa stemata Merrill, 1915. Amer. Ent. Soc, Trans. 41: 150. 9. 

 Rhyssa praealpina Gyorfi, 1946. Fragm. Faunist. Hung. 9: 33. 9. 



Biology: Coutrier, 1949. Soc. Ent. de France, Bui. 54: 62-63. — Spradbury, 1969. Bui. Ent. 

 Res. 59: 291-297. 



Morphology: Spradbury, 1970. Roy. Ent. Soc. London, Proc, Ser. A: Biol. 45: 21-23, 24-25. 26, 

 27. 



Tribe DIACRITINI 



This is a very small tribe erected by Townes, Momoi, and Townes (1965) to include only 

 Diacritus, a Holarctic genus including three species. A second monotypic Japanese genus was 

 added by Townes (1969). 



Genus DIACRITUS Foerster 



Diacritus Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 191. 



Type-species: Mesoleptus m^iliebris Cresson. By subsequent monotypy from 

 inclusion by Davis, 1895. 

 Phidias Snellen van Vollenhoven, 1898. Tijdschr. v. Ent. 21: 164. Preocc. by Rafinesque, 

 1815. 



Type-species: Phidias aciculatus Snellen van Vollenhoven. Monotypic. 

 Stenolabis Kriechbaumer, 1894. Ent. Nachr. 20: 58. 



Type-species: Stenolabis cingulata Kriechbaumer. Monotypic. The type-species is 

 regarded as a synonym of D. aciculatus (Snellen van Vollenhoven). 



Taxonomy: Townes, 1957. Ent. Soc. Wash., Proc. 59: 16 (Townes here removed the genus 

 from the Neoxoridini [=Poemeniini Townes] and placed it provisionally in the Oxytorinae 

 [=Plectiscinae auct.], and the genus was also excluded from the Pimplinae in the Revision 

 by Townes and Townes [I960]). 

 muliebris (Cresson). Que. s. to Va. and apparently w. to northwestern U. S. 

 Mesoleptus^ muliebris Cresson, 1868. Amer. Ent. Soc, Trans. 2: 102. 6. 

 Mesoleptus variabilis Provancher, 1875. Nat. Canad. 7 (4): 115. 3. Barron (1975) rejected 



the "lectotype" selected by Gahan and Rohwer (1918) and gave data for the specimen he 



regarded as the holotype. 

 Mesostenus rufipes Provancher, 1875. Nat. Canad. 7 (8): 249; 7 (9): 263. 9. 

 Echthrus pediculatus Provancher, 1880. Nat. Canad. 12: 99. 9. 

 Mesostenus pluricinctus Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 76. 



9. 

 Plectiscidea {Aperileptus^) contentionis Viereck, 1917 (1916). Conn. State Geol. and Nat. 



Hist. Survey Bui. 22: 276. 9 . 



Taxonomy: Cushman, 1917. Ent. Soc. Wash., Proc. 19: 162-165. —Gahan and Rohwer, 1918. 

 Canad. Ent. 50: 101. —Momoi, 1966. Kontyu 34: 3. —Barron, 1975. Nat. Canad. 102: 528, 

 534, 552, 580. 



Tribe NEOXORIDINI 



The name Neoxoridini Clement (1938) has priority over the names Eugaltini Townes (1949) or 

 Poemeniini Townes (1951). 



Revision: Rohwer, 1920. U. S. Natl. Mus., Proc. 57: 444-451 (as part of Xoridini). —Clement, 

 1938. Festschr. Embrik Strand, v. 4, p. 515-522 (western Palearctic spp.). — Oehlke, 1966 

 (1965). Beitr. z. Ent. 15: 881-892 (western Palearctic spp.). 



Taxonomy: Townes, 1957. Ent. Soc. Wash., Proc. 59: 15-20 (genera of world). 



Genus POEMENIA Holmgren 



Ophiodes Hartig, 1847. Naturw. Ver. Harz, Ber. 1846-1847, p. 18. Preocc. by Wagler, 1830; 

 Guenee, 1841. 



Type-species: Ophiodes montanus Hartig. Monotypic. The type-species is regarded 

 as a synonym of P. hectica (Gravenhorst). 



