Superfamily ICHNEUMONOIDEA 475 



cinctiventrjs (Cushman). Md. s. to Fla., w. to Tex. 



Mesostenu.<i laticincfiis Cresson, 1878. Canad. Ent. 10: 208. 9. Preocc. by Mesostenus^ 



laticinctiis Walker, 1874. 

 Mesosteniis Cressonii Dalla Torre, 1901. Cat. Hym., v. 3, p. 539. N. name for M. laticinctus 



Cresson; preocc. by Ashmead, 1900. 

 Diapetimorpha cindiventriH Cushman, 1929. U. S. Natl. Mus., Proc. 74 (16): 32. N. name 



for M. cressonii Dalla Torre. 



nasutus (Pratt). N. Me.x. 



NasHtocryptus nasHtHn Pratt, 1945. Amer. Midland Nat. 34: 561. 9. 

 orbus (Say). Southern N. Y. s. to Fla., w. to s. Wis., Kans., and Tex. Host: Coleophora sp., 

 Ho)>iale(lra sabcilella (Chamb.), Phereoeca wahinghami (Bsk.), Grapliolitha molesta 

 (Bsk.), Astala confederata (G. and R.), Lineodea vulnifica Dyar, eggs oi Zelotes sp., 

 Hi/posoter fngifivus (Say). 

 Cri/ptus orbus Say, 1836. Boston Jour. Nat. Hist. 1: 231. [female]. 

 Meso.stenus diligeus Cresson, 1878. Canad. Ent. 10: 207. 9. 

 Lyiiieon annulicornix Ashmead, 1894. U. S. Dept. Agr., Insect Life 7: 243. 9. 



Genus ACERASTES Cushman 



Acemstes Cushman, 1929. U. S. Natl. Mus., Proc. 74 (16): 53. 



Type-species: Meaosfenun perti)iax Cresson. Monotypic and orig. desig. 



Except for the widely distributed type-species which ranges into the Nearctic Region, this 

 moderately large genus is Neotropic. 



pertinax (Cresson). Md. s. to Fla., w. to Tex.; Mexico, West Indies, Honduras, Panama, 



Venezuela, Brazil, Paraguay. Townes and Townes (1962) said that pertinax "appears to 

 overwinter in southern Florida and near Brownsville, Tex., and to work northward each 

 season." 



MetiONfenus pertinax Cresson, 1872. Amer. Ent. Soc, Trans. 4: 163. 9. 



Phytodietns ornatus Provancher, 1888. Addit. Corr. Faune Ent. Canada Hym., p. 431. 9. 



Taxonomy: Townes and Townes, 1966. Amer. Ent. Inst., Mem. 8: 98 (syn.). 

 Biology: Townes and Townes, 1962. U. S. Natl. Mus. Bui. 216 (pt. 3): 405. 



Genus POLYCYRTIDEA Viereck 



Polycyrtidea Viereck, 1913. U. S. Natl. Mus., Proc. 46: 382. 



Type-species: Polycyrtidea gracilis Viereck. Monotypic and orig. desig. 



Except for one species that ranges into the southern tip of Texas and one that occurs in Fla., 

 this small genus is restricted to America south of the U. S. 



Taxonomy: Townes, 1970 (1969). Amer. Ent. Inst., Mem. 12: 288. 

 floridana Porter. Northern Fla. Known only from the holotype. 



Polycyrtidea floridana Porter, 1975. Fla. Ent. 58: 250. 9. 

 limitis Cushman. Southern Tex.; Mexico, Costa Rica. In their tribal revision, Townes and 

 Townes (1962) said that Umitis may prove to be only subspecifically distinct from P. 

 flaropicta (Ashmead) which is known from Grenada and South America. 

 Polycyrtidea linntis Cushman, 1929. U. S. Natl. Mus., Proc. 74: (16): 52. 9. 



Taxonomy: Porter, 1975. Fla. Ent. 58: 248-250. 



Genus PACHYSOMOIDES Strand 



Pachysowa Szepligeti, 1916. Mus. Natl. Hungarici, Ann. 14: 290. Preocc. by Macleay, 1821 

 and five additional authors. 



Type-species: Pachysouia albopictuw Szepligeti. Monotypic. 

 Pachysowoides Strand, 1917. Internatl. Ent. Ztschr. 10: 137. N. name for Pachysoma 



Szepligeti. 

 Polistiphaga Cushman, 1925. Wash. Acad. Sci., Jour. 15: 391. 



Type-species: Mesosfenus arvalis Cresson. Monotypic and orig. desig. 



