422 Hymenoptera in America North of Mexico 



between Hedylus and Medophron. In Hedylus crassicornis the nervellus is reclivous, the 

 discoidella is absent, the apical portion of the mediella is very strongly curved, and the petiole 

 has the apex of the sternite opposite the spiracles. In Townes' (1970) key to the genera of 

 Phygadeuontina H. crassicornis runs to Stibeufes. 



Taxonomy: Townes, 1970 (1969). Amer. Ent. Inst., Mem. 12: 81, 92-94. 

 brooksi (Brooks), n. comb. W. Va. Host: Craponius inaequalis (Say). This species was placed 

 in Stibeutes by Townes (1970); it seems more a misfit in Stibeutes than in Hedylus. 

 Sfiboscopus brooksi Ashmead, 1906. In Brooks, W. Va. Agr. Expt. Sta., Bui. 100: 240. 



Nomen nudum. 

 Stiboscopus brooksi Brooks 1918. U. S. Dept. Agr., Bui. 730: 14. 9. 



Taxonomy: Townes, 1970 (1969). Amer. Ent. Inst., Mem. 12: 100, 395. 



crassicornis Ashmead. N. H., Wis.; e. U. S. S. R. 



Hedylus crassicontis Ashmead, 1899 (1898). In Jordan, Fur Seals and Fur Seal Isls. No. 

 Pacific, V. 4, p. 339. 9 . 



Genus STIBEUTES Foerster 



Stibeutes Foerster, 1850. Arch. f. Naturgesch. 16 (1): 76. 



Type-species: Stibeutes gravenhorstii Foerster. Desig. by Ashmead, 1900. 

 Chamaezelus Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 181. 



Type-species: Stibeutes heinemanni Foerster. Monotypically included and desig. by 

 Perkins, 1962. 

 Schizopleuron subg. Scliizopleuron Aubert, 1968. Soc. Ent. de. Mulhouse, Bui. 24: 6. 

 Described as Schizopleuron n. genus or Medophron subg. Schizopleuron n. subg. 

 Type-species: Medophron (Schizopleuron) tricinctor Aubert. Monotypic. The 

 type-species was alternatively described as Schizopleuron tricinctor K\xheri. 



yuasai (Bradley). N. Y. 



Phygadeuon (.Stibeutes) yuasai Bradley, 1918. Brooklyn, Ent. Soc, Bui. 13: 99.9. 



Genus THEROSCOPUS Foerster 



Theroscopus Foerster, 1850. Arch. f. Naturgesch. 16 (1): 72. 



Type-species: Pezomachus pedestris Gravenhorst. Desig. by Viereck, 1914. P. 

 pedestris Gravenhorst is an identification of Ichneumon pedestris Fabricius. 

 Chamerpes Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 172. 



Type-species: Pezomachus hemipterus Gravenhorst. Monotypically included and 

 desig. by Viereck, 1914. P. hemipterus Gravenhorst is an identification of 

 Ichneumon hemipterus Fabricius which Viereck referred to as "Hemiteles 

 hemipterus Gravenhorst." 

 Eriplanus Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 180. 



Type-species: Hemiteles (Eriplanus) metacomet Viereck. By subsequent monotypy 

 from inclusion by Viereck, 1917. 

 Phyrtus Foerster, 1868. Naturh. Verh. Rheinlande, Verh. 25: 181. 



Type-species: Pezomachus hemipterus Gravenhorst. Monotypically included and 

 desig. by Ashmead, 1900. P. hemipterus Gravenhorst is an identification of 

 Ichneumon hemipterus Fabricius which Ashmead referred to as "Hemiteles 

 hem ipterus Gravenhorst." 

 Thysiotorus Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 181. 



Type-species: Hemiteles (Physiotorus[!]) brevipennis Brischke. Desig. by Viereck, 

 1914 from two species included by Dalla Torre, 1902. Dalla Torre made the 

 apparently erroneous assumption that Physiotorus was a typographical error for 

 Thysiotorus. Cushman (1939) and Perkins (1962) suggest that Physiotorus was a 

 lapsus Brischke made for Phyrtus instead of a typographical error for 

 Thysiotorus. 

 Odontoneura Foerster, 1868. Naturh. Ver. Rheinlande, Verh. 25: 185. N. syn. 



Type-species: Phygadeuon a)tnulicornis Thomson. Monotypically included and 

 desig. by Perkins, 1962. The systematic position of the type-species is discussed 

 by Frilli (1973). 



