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U. S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



5. Propodeum, mctapleurum, and hind coxa black; scutellum black or 



yellow 6 



Propodeum, metapleurum, and hind coxa, or at least one of them, marked with 

 yellow; scutellum entirely yellow 7 



6. Hind femur entirely fulvous; range: Eurasia and parts of northwestern North 



America la. stylator stylator (Thunberg) 



Hind femur black with its base broadly fulvous; range: Colorado to Alaska, 

 in the Rocky Mountains lb. stylator niger Mitchell 



7. Hind femur broadly fulvous basally; range: Colorado and Wyoming. 



Ic. stylator excelsus (Cresson) 



Hind femur entirely black or only its extreme base fulvous; range: South 



Dakota Ig. stylator axilaris Mitchell 



la. Acroricniis stylator stylator (Thunberg) 



Ichneumon stylator Thunberg, 1822, Mem. Acad. Sci. St. P6tersbourg, vol. 8, p. 

 265 [key]; 1824, vol. 9, p. 320 [description]; [d']. Type: d', Sweden 

 (Uppsala). 



Male: Colored like female except that face, clypeus, palpi, and 

 under side of scape are yellow. 



Female: Black. Flagellum fulvous, dusky above and with a yel- 

 lowish band; mark on front orbit (usually), femora, and front tibia 

 and tarsus fulvous, the tarsus dusky apically; hind tibia yellowish 

 fulvous, its apical 0.3 ± infuscate; hind tarsus yellow, its first segment 

 partly or mostly fulvous, its last segment brown. 



Specunens: 9, Atlin, 2,200 ft., B.C., June 27, 1955, B. A. Gibbard 

 (Ottawa). 9, Fort McPherson, N.W.T., July 9, 1957, S. D. Hicks 

 (Ottawa), d', Fort Simpson, N.W.T., July 15, 1950, D. P. Whillens 

 (Ottawa). Also a number of males and females from Em'ope. 



This subspecies occurs in Eurasia and in the northwestern corner 

 of North America. Mitchell (1950, Ann. Ent. Soc. America, vol. 43, 

 p. 253) records intergrades between it and the more southern A. 

 stylator niger from Eklutna Lake, Alaska and from Athn, B.C. 



Figures 258, 259. — Localities: 258 (left), Acroricnus stylator stylator; 259 (right), J. s. niger. 



