230 U. S. NATIONAL MUSEUM BULLETIN 216 



always fulvous; mesoscutum often more or less fulvous; and hind 

 tibia blackish on its basal 0.18± and apical 0.28 ±. 



Type: 9, Poughkeepsie, N. Y., Aug. 2, 1936, H. Townes (Washing- 

 ton, USNM 63663). 



Paratypes: <?, New Haven, Conn. (Washington). 9, Sioux City, 

 Iowa, July 31, 1928, C. N. Ainslee (Washington). 29, Mahomet, 111., 

 June 29, 1930, A. R. Park (Washington). 9, Bangor, Maine, F. A. 

 Eddy (Cambridge). 9, Takoma Park, Md., June 3, 1944, H. and 

 M. Townes (Townes). 9, Wollaston, Mass., Aug. 15, 1896, F. H. 

 Sprague (Cambridge). 9, Hampton, N. H., July 24, 1914, S. Albert 

 Shaw (Washington). 9, Bemus Point, N. Y., Aug. 21, 1937, H.Townes 

 (Townes). 9, Canajoharie, N. Y., Aug. 4, 1934, H. Townes (Townes). 

 9, Ithaca, N. Y., Aug. 10, 1947 (Ottawa). d\ McLean Reserve in 

 Tompkins Co., N. Y., Aug. 14, 1947 (Ottawa), d" , Oswego, N. Y., 

 June 16, 1896 (Washington), cf , 9, Poughkeepsie, N. Y., July 18, 

 1936, H. Townes (Townes). d\ Prattsville, N. Y., Aug. 8, 1934, 

 H. Townes (Townes). 9, reared from Canarsia ulmiarrosorclla, 

 Ottawa, Ont., 1949 (Ottawa), d\ Dow's Swamp, Ottawa, Ont., 

 July 17, 1946, G. S. Walley (Ottawa). <?, Jefferson Co., Wis., 

 July 22, 1945, W. McNeel (Madison). 



This is a species of the Alleghenian fauna. Adults have been col- 

 lected from June 16 to August 21. 



31. Exochus ferrugineus Ashmead 



Figures 189,r; 194,c 



Amesolytus ferrugineus Ashmead, 1896, Trans. Amer. Ent. Soc, vol. 23, p. 201; 

 cf, ?. Lectotype hereby designated: 9 (both front wings off, one of them 

 pasted on locality label), Texas, Belfrage collection (Washington). 



Front wing 4.4 to 6.3 mm. long; combined face and clypeus about 

 1.18 as high as wide in male, about 1.25 as high as wide in female, 

 moderately, evenly convex in both vertical and horizontal directions, 

 their punctures rather coarse and strong, subadjacent on face, sparse 

 on clypeus; apical angle of interantennal process about 90 degrees; 

 median swelling of frons weak, laterally only indistinctly differen- 

 tiated; hind ocellus separated from eye by about 0.45 its long diameter 

 in male, by about 0.25 its long diameter in female; median half of 

 apical edge of clypeus weakly concave; mandible with sparse, moder- 

 ate-sized punctures, evenly tapered from its base of moderate width 

 to its moderately narrow apex, its lower tooth small; costula usually 

 incomplete; second lateral area of propodeum with a very few hairs, 

 these at its base and/or in its apicolateral corner; areola bounded 

 laterally by weak or obsolescent carinae; hind femur about 2.36 as 

 long as deep in male, about 2.55 as long as deep in female; front spur 

 of hind tibia about 3.5 as long as wide in male, about 3.6 as long as 



