140 U. S. NATIONAL MUSEUM BULLETIN 216 



body wrinkling a little weaker. This difference is most evident on the 

 combined first and second lateral areas of the propodeum, which in 

 this species has rather small, strong, adjacent punctures and indistinct 

 wrinkling, while in S. indigus it has the punctures a little weaker and 

 the wrinkling a little stronger. Were it not for the sharp color 

 difference the structural distinction between the two species would 

 probably be overlooked. 



Black. Coxae and first trochanters black, those of the hind leg 

 sometimes partly ferruginous; hind second trochanter blackish to 

 fulvous; legs beyond trochanters fulvous to ferruginous, the hind 

 tarsus brownish apically; wings faintly to strongly infuscate. 



This is a Holarctic species. Old World and New World specimens 

 differ a little in color, permitting a subspecific distinction between 

 them: 



1. Wings faintly infuscate; range: Europe. . . la. scaber scaber (Gravenhorst) 

 Wings moderately to rather strongly infuscate; range: North America. 



lb. scaber umbrosus (Davis) 



la. Spudaeus scaber scaber (Gravenhorst) 



Trachyderma scabra Gravenhorst, 1829, Ichneumonologia europaea, vol. 3, p. 

 285; cf. Type: d\ Fennia (lost). 



Wings faintly infuscate; legs beyond trochanters fulvous, the hind 

 tarsus brownish apically. 



This subspecies occurs in northern and central Europe. The host 

 is reported as Panolis flammea. 



lb. Spudaeus scaber umbrosus (Davis) 



Tylecomnus (!) umbrosus Davis, 1897, Trans. Amer. Ent. Soc, vol. 24, p. 203; 

 ?. Lectotype: 9 , Washington (Philadelphia). 



Wings moderately to rather strongly infuscate; legs beyond 

 trochanters fulvous to ferruginous, the hind tarsus brownish apically. 

 Specimens from California, Arizona, and Wyoming tend to have the 

 wings a little darker than in specimens from Montana, Washington, 

 British Columbia, and Alberta. 



Specimens: 9, Cypress Hills, Alta., July 10, 1950, E. H. Strickland 

 (Townes). d\ Waterton, Alta., June 19, 1923, H. L. Seamans 

 (Ottawa). 9, North Rim of Grand Canyon at 8,000 ft., Ariz., June 1, 



1946, R. M. Bohart (Townes). 9, Pass Creek near Robson, B. C, 

 May 21, 1947, H. R. Foxlee (Ottawa). & , Robson, B. C, May 16, 



1947, H. R. Foxlee (Ottawa). d\ 9, "Angora Peak at 8,625 ft.," 

 Calif., July 10 and 19, 1931, E. O. Essig (Berkeley). <?, Fallen Leaf 

 Lake in Eldorado Co., Calif., July 1931, O. H. Swezey (Townes). 

 49, Gold Lake in Sierra Co., Calif., July 18, 23, 27, and 30, 1921, 

 C. L. Fox (San Fransco and Townes) . 9, Strawberry Lake in Eldorado 



