252 U. S. NATIONAL MUSEUM BULLETIN 216 



pronotum (broadest behind and reaching forward to in front of epomia) 

 tegula, subtegular ridge, narrow side and apex of scutellnm, and 

 postscutellum, ivory white; flagellum brown beneath; mesosternum, 

 metasternum, lower part of propleurum, mesopleurum except just 

 beneath subtegular ridge, and metapleurum all usually ferruginous 

 or fulvous but sometimes more or less black or entirely black except 

 for part of metapleurum; upper part of prepectus of male marked 

 with yellow; pleural part of propodeum sometimes ferruginous or 

 fulvous; front and middle coxae fulvous, ivory apically; front and 

 middle trochanters ivory in male, mostly fulvous in female; front and 

 middle femora fulvous, ivory apically, especially in front; front and 

 middle tibiae ivory with pale fulvous areas; front and middle tarsi 

 pale stramineous, whitish basally; hind coxa, trochanters, and femur 

 fulvous, the extreme apex of femur a little infuscate; hind tibia 

 white, its apical 0.35 ± blackish on dorsal edge, the blackish area 

 extending basad laterally and ventrally to near midlength of tibia, 

 the blackish area averaging darker and more extensive in males 

 than in females; hind tarsus white, the apex of its first four segments 

 and apical half of its fifth segment pale brown to blackish. 



Type: 9, Mayo Beach, Md., Oct. 27, 1945, H. and M. Townes 

 (Washington, USNM 63674). 



Paratypes: 3d*, 29, same data as type (Townes). d", Takoma 

 Park, Md., June 21, 1943, H. and M. Townes (Townes). (?, Hollis- 

 ton, Mass., Aug. 14, N. Banks (Cambridge). d\ 9, George Reserve, 

 Livingston Co., Mich., July 1 and Aug. 21, 1956, H. Townes (Townes). 

 9, bred from leaf roller on Spiraea, St. Paul, Minn., July 31, 1936, 

 D. J. Pletsch (St. Paul), c? 1 , bred from Zomaria interuptolineana, 

 Essex Co., N. J., July 29, W. D. Kearfott (Washington) . <? , Moores- 

 town, N. J., July 27, 1939, H. and M. Townes (Townes). cf, Elmira, 

 N. Y., Aug. 4, 1937, H. Townes (Townes). cf , 9, Farmingdale, N. Y., 

 Aug. 14 and 23, 1938, H. and M. Townes (Townes). & , Van Court- 

 land Park, N. Y., July 20, 1913, (Ithaca), cf, Bala, Ont., July 19, 

 1922, G. S. Walley (Ottawa). 9, "New Cumberland," Pa., May 8, 

 1909, P. R. Myers (Washington). 9, Kazabazua, Que., Aug. 17, 

 1927, G. S. Walley (Ottawa). 



This species occurs from Quebec to Maryland and west to Minne- 

 sota. 



46. Exochus ostentatus Davis 



Figures 190,1; 195,i 



Exochus ostentatus Davis, 1897, Trans. Amer. Ent. Soc, vol. 24, p. 217; d\ 

 Type: d\ District of Columbia (Philadelphia). 



Front wing 3.4 to 4.7 mm. long; combined face and clypeus about 

 1.17 as high as wide in both sexes, their convexity uniform, moderately 

 strong; apical angle of interantennal process about 100 degrees; 



