404 



U. S. NATIONAL MUSEUM BULLETIN 216 



in Essex Co., and Mount Maclntyre); North Carolina (Clingmans 

 Dome and Mount Mitchell at 6,800 ft.); Nova Scotia (Baddeck on 

 Cape Breton Island) ; Ontario (Timagami Forest Reserve) ; and Que- 

 bec (Aylmer, Joliette, Montreal, Quebec, and Stoneham). 



Collection dates are all in the summer months, with 16 out of a 

 total of 26 in June. The earliest and latest dates are: June 4 at 

 Montreal, Que.; June 11 on top of Mount Maclntyre, Essex Co., 

 N. Y.; June 12 at Lake Itasca, Minn.; August 18 at Baddeck, N. S.; 

 and August 25 to 26 at Camp Kennedy at 3,000 ft. on Mount Katah- 

 din, Maine. 



Rearing records are as follows: 3d 1 , 19, from Urocerus albicornis, 

 Mount Desert Island, Maine, June 15, 1943, Wm. Procter. 29, 

 reared from Abies balsamea, Gale River, N. H., June 29, 1931, H. J. 

 MacAloney. 



This species occurs in the East, mostly in the Canadian zone. It 

 is adult from about mid-June to mid-August. 



Figubes 179, 180.— Localities: 179 (left), Rhyssa crevieri; 180 (right), R. lineolata. 



6. Rhyssa lineolata (Kirby) 



Figure 317,f 



Cryptocentrum lineolatum Kirby, 1837, in Richardson, Fauna boreali americana, 

 pt. 4, p. 260; d". Type: o\ North America at 65° N. latitude (London). 



Rhyssa albomaculata Cresson, 1864, Proc. Ent. Soc. Philadelphia, vol. 3, p. 318; 

 9 . Type: ? , N. J. (Philadelphia). 



Front wing of male 7 to 16 mm. long, of female 17.5 to 22 mm. 

 long; apical margin of male subgenital plate a little convex, often 

 with a weak median notch. In smaller males the front wing often 

 lacks the areolet. 



Face of male entirely white; temporal orbit white for most or all of 

 its length, often the white continuing across top of eye to frontal 



