ICHNEUMON-FLIES, PART 2 1 ACAENITLNAE 551 



at apex and in front; hind tibia yellowish fulvous, brownish apically; 

 hind tarsus yellowish, the basal 0.6 ± of its basitarsus with a brownish 

 tinge; wings tinged with yellowish. 



We studied the type of quebecensis in 1941, a time when this was 

 considered a synonym of pettiti. On discovering the specific distinct- 

 ness of the present species, we have referred to the original description 

 of quebecensis and have asked our friend Gerd Heinrich to make notes 

 on the type on his recent visit to Quebec. On the basis of the available 

 information it appears that quebecensis is this species rather than 

 a synonym of pettiti. 



Specimens: 9, Bar Harbor, Mount Desert Island, Maine, June 

 26, 1929, William Proctor (Washington). 9, Hennepin Co., Minn., 

 (St. Paul). 9, Rock Creek and Madison River, Gallatin National 

 Forest, Mont., July 17, 1947, Mrs. P. Wibble (Pittsburgh). 9, 

 St. Andrews, N. B., June 25, 1923, E. M. Walker (Ottawa), cf, 9, 

 Kings Co., N. S., June 22 and 25, 1931, C. E. Atwood (Ottawa). 

 9, Peter Brook, near Baddeck, N. S., June 26, 1936, T. N. Freeman 

 (Ottawa). 9, Nipigon, Ont., J. Fletcher (Ottawa). 9, Sand Lake, 

 Ont., July 5, 1926, F. P. Ide (Ottawa). 9, Smoky Falls on the Mat- 

 tagami River, Ont., July 7, 1934, G. S. Walley (Ottawa). 2 6% 19, 

 Sudbury, Ont., June 17, 1892, and June 17, 1922 (Ottawa and Townes). 

 cf, 9, Sudbury, Ont., W. H. Harrington (Ottawa and Townes). 2 6% 

 Cascapedia, Que., June 14, 1933, W. J. Brown (Ottawa). 9, Madelein 

 Isle, near Amherst, Que., July 17, F. Johansan (Ottawa). 9, June 

 16, 1892, (Ottawa). 



This species occurs in the Canadian zone from the Atlantic Ocean 

 to the Rocky Mountains. 



3. Coleocentrus pettiti Cresson 



Figure 373 



Coleocentrus Pettiti Cresson, 1868, Canadian Ent., vol. 1, p. 35; ? . Type: 9 , 

 Grimsby, Ont. (Philadelphia). 



Front wing of male 9.5 to 12 mm. long, of female 15.5 to 18 mm. 

 long; face densely hairy; clypeus about 2.8 as wide as long, sub- 

 basally with about 15 hairs in an irregular transverse row; prepectal 

 carina present ventrally; median longitudinal carinae of propodeum 

 strong; areolet present; second abdominal tergite of male about 2.9 

 as long as wide; hairs on second abdominal tergite of female sparse, 

 rather evenly distributed; hairs on lateral sternite of third abdominal 

 segment of female dense, evenly distributed; male clasper as in figure 

 373; ovipositor sheath about 1.08 as long as front wing. 



Male: Black. Palpi and lateral third of face ivory; under side of 

 scape yellowish brown ; tegula black or yellow with its apex blackish ; 

 coxae black; front and middle legs pale fulvous, their trochanters, 



