ICHNEUMON-FLIES, PART 2\ EPHIALTLNAE 197 



Abdomen black; hind tibia black with a median white band; mesopleurum 

 and metapleurum polished or subpolished 5 



5. Metapleurum and much of mesopleurum fulvous; white on hind corner of 



pronotum extending forward as a narrow stripe along upper edge. 



3. maculifrons Cushman 

 Metapleurum and mesopleurum entirely black; white on hind corner of pro- 

 notum not extending forward along upper edge 6 



6. Metapleurum punctate all over; temple of male without a transverse ridge 



just behind lower corner of eye; ovipositor a little more slender. 



1. atrata Cushman 

 Metapleurum punctate on about its posterior half, the rest impunctate; tem- 

 ple of male with a transverse ridge just behind lower corner of eye; ovipositor 

 a little stouter 2. canadensis Provancher 



1. Clistopyga atrata Cushman 



Clistopyga atrata Cushman, 1921, Proc. U. S. Nat. Mus., vol. 60, art. 4, p. 14; 

 d\ 9 • Type: ?, Berkeley, Calif. (Washington). 



Front wing about 4.8 mm. long in both sexes; temple of male not 

 specialized near lower end of eye; metapleurum polished, covered with 

 small punctures that are separated, on the average, by about three 

 times their diameter, the punctures a little sparser anteriorly; pro- 

 podeum moderately short and convex, subpolished, with rather coarse 

 punctures except in the petiolar area, medially rugulose and a little 

 mat; first tergite about 1.1 as long as wide; ovipositor moderately 

 stout, a very little more slender than in C. canadensis. Otherwise 

 structurally similar to C. canadensis. 



Colored as in C. canadensis except that in all the specimens at 

 hand the antenna is blackish with the pedicel and flagellum tinged 

 with brown below. 



Specimens: 9, near Alpine, Ariz., May 23, 1947, H. and M. Townes 

 (Townes). 9 (type), Berkeley, Calif., September 1914, E. P. Van 

 Duzee (Washington), <? (paratype), taken from gallery of Calopus 

 angustus in Pinus murrayana, Yosemite National Park, Calif., Aug. 

 10, 1917, J. E. Patterson (Washington). 



This species has been taken in the Transition and Canadian zones 

 of California and Arizona. 



2. Clistopyga canadensis Provancher 



Figure 332,a 



Polysphincta acuta Provancher, 1880, Naturaliste Canadien, vol. 12, p. 44 (Faune, 



p. 465); ?. Type: ?, Cap Rouge, Que. (Quebec). 

 Clistopyga Canadensis Provancher, 1880, Naturaliste Canadien, vol. 12, p. 46 



(Faune, p. 467); ?. Type: 9, Cap Rouge, Que. (Quebec). 



Front wing of male 3.9 to 4.9 mm. long, of female 4.0 to 5.7 mm. 

 long; body rather short and stout; temple of male with a strong trans- 

 verse ridge just behind lower corner of eye; temple moderately convex, 



