Superfamily ICHNEUMONOIDEA 587 



Tribe PERILISSINI 



Eighteen genera are currently recognized; eleven of them are represented by native Nearctic 

 species and a twelfth genus is represented by an introduced species. The tribe is apparently not 

 known from the Australian Region. 



Genus SYNOECETES Foerster 



Synagrypnus Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 203. 



Type-species: Synagryp7ius bla^icoburgensis Schmiedeknecht. By subsequent 

 monotypy from inclusion by Schmiedeknecht, 1914. 

 Synoecetes Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 203. 



Type-species: Mesoleptus sedulus Cresson. Desig. by Viereck, 1914 from three 

 species included by Davis, 1897. 

 Polyrhysia Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 204. 



Type-species: Tryphon tenuicomis Gravenhorst. Desig. by Viereck, 1914 from two 

 species included by Thomson, 1894. 

 Polyrhysius Thomson, 1894. Opusc. Ent. 19: 1999. Emend. 



This is a small Holarctic genus. 



festivus (Cresson). N. H. w. to s. Alta., s. to Md., Ill, and Colo. 



Tryphon festivus Cresson, 1864. Ent. Soc. Phila., Proc. 3: 279. "cJ" = 9. 

 Mesoleptus sedulus Cresson, 1868. Amer. Ent. Soc, Trans. 2: 97. "S" = 9. 



Genus COELORHACHIS Townes 



Coelorhachis Townes, 1966. In Townes and Townes, Amer. Ent. Inst., Mem. 8: 329. 

 Type-species: Mesoleptus decorosus Cresson. Monotypic and orig. desig. 



According to Townes this is a moderately large genus which is Neotropic; at least one un- 

 described species occurs in Texas. 



Genus ZAPLETHOCORNIA Schmiedeknecht 



Zaplethoconiia Schmeideknecht, 1912. Opusc. Ichn., v. 5, p. 2519. 



Type-species: Ichneumon procurator Gravenhorst. By subsequent monotypy from 

 inclusion by Schmiedeknecht, 1913. 

 Nictula Burks, 1952. Ent. Soc. Amer., Ann. 45: 88. 



Type-species: Westivoodia fxiviipennis Provancher. Monotypic and orig. desig. 

 Parastadus Burks, 1952. Ent. Soc. Amer., Ann. 45: 92. 



Type-species: Erigloea opulenta Davis. Monotypic and orig. desig. 



This is a small Holarctic genus. 



Taxonomy: Townes, 1970 (1969). Amer. Ent. Inst., Mem. 13: 88 (syn.). 



fumipennis (Provancher). Que., N. H., N. Y. 



Westivoodia fumipennis Provancher, 1875. Nat. Canad. 7: 329. 9. 



longipes (Davis). Tex. 



Syndipnus longipes Davis, 1898 (1897). Amer. Ent. Soc, Trans. 24: 288. 9. 



opulenta (Davis). N. H., Mass., N. Y., N. J., Md. 



Erigloea opulenta Davis, 1897. Amer. Ent. Soc, Trans. 24: 275. 9. 



Genus NANIUM Townes 



Nanuun Townes, 1967. In Walkley, in Krombein et ai, U. S. Dept. Agr., Agr. Monog, 2, 

 sup. 2, p. 174. 



Type-species: Tryphon capitatus Cresson. Monotypic and orig. desig. 



This is a small Neotropic and Nearctic genus. 



capitatum (Cresson). N. H. s. to n. Fla., w. to Tex. 



Tryphon capitatus Cresson, 1864. Ent. Soc. Phila., Proc. 3: 281. S. 



