42 U. S. NATIONAL MUSEUM BULLETIN 2 1 6 paet 3 



Aug. 2, 1938 and Aug. 14, 1929, E. H. Strickland (Townes). 2 6", 

 Wabamun, Alta., July 13, 1939 and Aug. 2, 1938, E. H. Stricldand (Ed- 

 monton). 4cf 1 9, Nantucket, Mass., Sept. 10, 1929 and August 8, 

 C. W, Johnson (Washington). 9 , reared from Chilo forbesellus, Che- 

 boygan Co., Mich., July 26, 193-, N. Fishtail (Washington), cf , reared 

 from Chilo forbesellus, Douglas Lake, Cheboygan Co., Mich., Sept. 9, 

 1934 (Washington). 9 , Douglas Lake, Mich., July, C. H. Kennedy 

 (Columbus). 9 , reared August 15 from material collected July 29, 

 1931, Marl Bay (on Douglas Lake), Cheboygan Co., Mich., Edith 

 G. Kauffman (Ann Arbor). 2cf, Beltrami Co., Minn., Aug. 5, 

 1910 (St. Paul), cf, Itasca Park, Minn., June 5, 1937, entomology 

 class (St. Paul). 9, LuskviUe, Que., Aug. 6, 1955, P. Taschereau 

 (Ottawa). 9, "Saint Anne's," Que., July 25, 1931 (Washington). 

 3cf, 10 9, Prince Albert National Park, Sask., May 26, 1939 and 

 July 20 and 21, 1941, J. G. Rempel (Townes). cT, 2 9 , Prince 

 Albert National Park, Sask., July 20, 1941, J. G. Eempel (Rempel). 

 9 , Oshkosh, Wis., Sept. 20, 1946, Helen Geiger (St. Paul). 



This species ranges from the Atlantic Ocean to Alberta, mostly 

 in the Canadian zone. 



2. Genus Agrothereutes 



Figures 308,b and 309,a 



Agrothereutes Foerster, 1850, Arch. Naturg., vol. 16, art. 1, p. 71. Type: (Pezo- 



machus abbreviator Gravenhorsi) =abbreviator (Fabricius); designated by 



Viereck, 1914. 

 Spilocryptus Thomson, 1873, Opuscula entomologica, facs. 5, p. 501. Type: 



(Spilocryptus zygaenarum Thomson) = solitarius (Tschek) ; designated by 



Viereck, 1914. 

 Dayro Cameron, 1902, Ann. Mag. Nat. Hist., ser. 7, vol. 9, p. 209. Type: Dayro 



pilosus Cameron; monobasic. 



Front wing 2.8 to 10.0 mm. long; wings in female of the species 

 abbreviator often very short and the thorax correspondingly modified; 

 thorax of moderate proportions (except in brachypterous specimens) ; 

 frons unarmed; clypeus of moderate size, moderately to strongly 

 convex, its apical margin broadly convex; mesoscutum moderately 

 long and convex, usually entirely polished but in a few species mat 

 along margins and notauli or mat with the median part of each of the 

 three lobes polished, with moderate sized, rather dense, strong punc- 

 tures; notaulus sharp, reaching a Httle beyond center of mesoscutum; 

 epomia moderately strong to obsolescent; prepectal carina sometimes 

 ending near middle of hind margin of pronotum but usually continued 

 dorsad almost to subtegular ridge; propodeal spiracle circular or 

 elliptic; propodeum of moderate shape; basal transverse carina of 

 propodeum complete or medially obsolescent; apical transverse 



