Superfamily ICHNEUMONOIDEA 581 



brevicauda Cushman. Ariz.; s. Mexico. 



Neorhacodes brevicauda Cushman, 1940. U. S. Natl. Mus., Proc. 88: 526. 6, 9. 

 longicauda Cushman. Colo., Ariz. 



Neorhacodes longicauda Cushman. 1940. U. S. Natl. Mus., Proc. 88: 526. 9. 



Subfamily CTENOPELMATINAE 



This is a large subfamily; its distribution is worldwide, but it is best represented in the 

 Holarctic Region. The vast majority of the species are thought to be internal parasites of sawfly 

 larvae; however, two species of Lathrolestes (one Neartic and one European) have been reared 

 from primitive microlepidoptera of the family Eriocraniidae. The unreliable nature of Townes' 

 (1970) keys to the genera appears to indicate that this subfamily is very difficult taxonomically. 



Taxonomy: Townes, 1970 (1969). Amer. Ent. Inst., Mem. 13: 53-143 (genera of world). 



Tribe CTENOPELMATINI 



Five genera are included in this small Holarctic tribe; four of them have nearctic species. The 

 known hosts are Pamphiliidae. 



Genus CTENOPELMA Holmgren 



Ctenopelma Holmgren 1857 (1855). Svenska Vetensk.-Akad. Handl. 1: 117. 



Type-species: Ctenopehtia nigru))i Holmgren. Desig. by Viereck, 1912. 

 Xaniopehna Tschek, 1868. Zool.-Bot. Gesell. Wien., Verb. 18: 443. 



Type-species: Xaniopeluia sericans Tschek. Monotypic. The type-species is 

 regarded as a synonym of C. yiigru))i Holmgren. 

 Zachresta Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 151. 



Type-species: Zachresta insignis Woldstedt. By subsequent monotypy from 

 inclusion by Woldstedt, 1877. The type-species is regarded as a synonym of C. 

 lucifer (Gravenhorst). 

 Diedrus Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 200. 



Type-species: Diedrus areolatus Davis. Desig. by Viereck, 1914 from two species 

 included by Davis, 1898. 

 Eryma Foerster, 1868 Naturh. Ver. Rheinlande, Verb. 25: 202. Preocc. by Meyer, 1840 and 

 Albers, 1854. 



Type-species: Eryma stygitim Kriechbaumer. By subsequent monotypy from 

 inclusion by Kriechbaumer, 1891. The type-species is regarded as a synonym of C. 

 nigrum Holmgren. 

 Holmgrenia Kriechbaumer, 1877. Zool.-Mineral. Ver. Regensburg, Corresp.-Bl. 31: 146. 

 Preocc. by Foerster, 1868. 



Type-species: Holmgrenia pulchra Kriechbaumer. Monotypic. The type-species is 

 regarded as a synonym of C xanthostigma Holmgren. 

 Kriechbaumeria Dalla Torre, 1885. Naturf. Gesell. Graubuendens, Jahresber. 28: 52. N. 



name for Holmgrenia Kriechbaumer. 

 Polyomorus Kriechbaumer, 1894. Ent. Nachr. 20: 60. 



Type-species: Polyomorus gagatinus Kriechbaumer. Monotypic. The type-species is 

 regarded as a synonym of C. luteum Holmgren. 

 Neoerynia Ashmead, 1898. Ent. Soc. Wash., Proc. 4: 169. N. name for Eryma Foerster. 

 Pseudobanchus Szepligeti, 1911. In Wytsman, Gen. Ins., fasc. 114, p. 79. 



Type-species: Exetastes nigripennis Gravenhorst. Monotypic. 

 Polyhomorus Schulz, 1906. Spolia Hym., p. 99. Emend, of Polyomorus Kriechbaumer. 



This is a Holarctic genus of moderate size. 



areolatum (Davis). N. H. 



Diedrus areolatus Davis, 1898 (1897). Amer. Ent. Soc, Trans. 24: 324. 9. 



crassicorne Walley. Northern Ont. 



Ctenopelma crassicorne Walley. 1941. Canad. Ent. 73: 168. 6,9. 



croceum Walley. Que. s. to Md., w. to Alta. 



Ctenopelma croceum Walley, 1941. Canad. Ent. 73: 167. cJ, 9. 

 labradorense (Davis). Newfoundland (Labrador). 



Diedrus labradorensis Davis, 1898 (1897). Amer. Ent. Soc, Trans. 24: 324. 9. 



