ICHNEUMON-FLIES, PART 2'. EPHIALTINAE 21 



Para types: d\ 29, same data as type (Ottawa); cf, 9, Great Bend, 

 Kans., June 5, 1939, R. H. Beamer (Lawrence), <?, 9, Cedar Lake, 

 Man., July 1936, Brues (Cambridge). 3 cf, Huron Co., Mich., June 9, 

 1951, R. R. Dreisbach (Dreisbach). 9, Kent Co., Mich., June 9, 1949 

 (Dreisbach). 39, Sand Point, Huron Co., Mich., June 25, 1922, R. F. 

 Hussey (Dreisbach). 59, Tuscola Co., Mich., June 9, 1951 (3 speci- 

 mens), June 22. 1952, and July 9, 1950, R. R. Dreisbach (Dreisbach). 

 cf, Cushing, Minn., June 24, 1940, H. Pratt and C. Pedersen (St. 

 Paul). 9, Lake Calhoun, Hennepin Co., Minn., June 12, 1921, W. E. 

 Hoffman (St. Paul). 9, Traverse Co., Minn., O. W. Oestlund (St. 

 Paul). 9, Bergen Swamp, Genesee Co., N. Y., June 28, 1952, L. L. 

 Pechuman (Townes). 29, Tokio, N. Dak., July 28, 1937, H. T. 

 Peters (Lawrence). 9, Sandusky, Ohio, Sept. 1, 1929, A. L. Melander 

 (Cambridge). 9, Prince Albert National Park, Sask., July 20, 1951, 

 J. G. Rempel (Townes). 9, mountains near Sheridan, Wyo., Metz 

 (New York). 



Host: Unknown. 



2. Scairibus (Endromopoda) detritus (Holmgren) 



Figures 310,c; 311,b; 320,c 



Pimpla detrita Holmgren, 1860, Svenska Vetensk.-Akad. Handl., ser. 4, vol. 3, 



pt. 2, No. 10, p. 23. Types: d\ ? , Sweden (Stockholm). 

 Pimpla detrita Holmgren, Salt, 1931, Bull. Ent. Res., vol. 22, pt. 4, p. 519. 

 Biology: Holmes, 1953, Canadian Ent., vol. 85, p. 339. 



Male: Front wing 4.0 to 6.0 mm. long; antenna with 20 to 25 

 segments; cheek about 0.3 times breadth of mandible at base; mandible 

 coriaceous on basal 0.5; thorax moderately elongate; propodeum about 

 a-s long as deep, with rather strong, narrowly separated, subparallel, 

 dorsomedial carinae that extend from base to apical 0.20 of propodeum; 

 front femur with a broad, rather shallow excision beneath; abdomen 

 slender; tergite 1 much longer than wide. 



Black. Pedicel yellowish beneath; flagellum brownish to blackish 

 above and yellowish to pale brownish beneath; palpi pale yellowish; 

 hind angle of pronotum very narrowly yellowish; tegula pale yellowish ; 

 stigma dark brown, with a sordid yellowish spot at base; wing dis- 

 tinctly tinged with brownish; legs largely reddish, with coxae varying 

 from reddish with fuscous bases to entirely blackish; trochanters 

 yellowish to pale reddish ; and hind tibia broadly yellowish to reddish 

 yellow at middle, with subbasal and apical fuscous annuli. 



Female: Front wing 4.3 to 8.0 mm. long; antenna with 20 to 24 

 segments; cheek about 0.33 breadth of mandible at base; temple rather 

 broad; thorax moderately stout; propodeum moderately long, with 

 distinct, dorsomedial carinae extending from base to apical 0.33; sides 

 of propodeum punctate and rugose, dorsal region smooth except for 



