ICHNEUMON-FLIES OF AMERICA: 1. METOPIENAE 55 



0.23 of tibiae, tibial spurs, and front and middle coxae and trochanters 

 of male, yellowish, the hind coxa and femur reddish brown to black; 

 abdomen ferruginous on apical part of fifth tergite and on sixth and 

 following segments. 



Type: 9, Glen Echo, Md., July 1925, R. M. Fouts (Washington, 

 USNM 63609). 



Parat3^pes: 9, Takoma Park, Md., Aug. 25, 1943, H. and M. 

 Townes (Townes). 9, Marion, N. C, Aug. 29, 1950, H., M., and D. 

 Townes (Townes). 9, Wake Co., N. C, July 1, 1951, H. and M. 

 Townes (Townes) . d\ Devils River, Tex., May 6, 1907, F. C. Bishopp 

 (Washington) . 



19. Trieces dentatus, new species 



Figure 182,c 



Front wing 4.4 to 5.2 mm. long; face in profile weakly convex, its 

 punctures coarse and strong, their interspaces about 0.25 their dia- 

 meter; flagellum with about 39 segments in male, with about 34 seg- 

 ments in female; third segment of maxillary palpus about 1.6 as long 

 as wide in male, about 1.3 as long as wide in female; dorsal part of 

 prepectal carina absent, the carina not reaching front edge of meso- 

 pleurum; lateral carina of scutellum projecting beyond apex of scutel- 

 lum to form an acute tooth; metapleurum almost smooth except for 

 a prominent juxtacoxal carina, with a band of numerous hairs along 

 its upper margin, the hairs arising from minute punctures; front spur 

 of middle tibia about 0.46 as long as hind spur; second segment of 

 middle tarsus about 1.9 as long as wide in male, about 1.15 as long as 

 wide in female; median and sublateral longitudinal carinae extending 

 entire length of fourth tergite, in male present also on fifth tergite; 

 sublateral carina on third tergite weakly curved. 



Black. Face, side of frons, clypeus, cheek, and mouth parts, yellow 

 tinged with fulvous, the palpi pale yellow; antenna brown, paler be- 

 neath, the under side of scape pale fulvous; tegula fulvous, yellow at 

 base; legs fulvous, the extreme apex of femora, basal 0.23 of tibiae, 

 and tibial spurs, yellowish; tinges on front and middle coxae and 

 trochanters of male yellow; abdomen ferruginous on sixth and follow- 

 ing segments, the sixth tergite basally infuscate, especially in males. 

 In one female specimen the thorax is ferruginous rather than black, 

 and the abdomen is tinged with ferruginous. 



Type: 9, Farmingdale, N. Y., July 26, 1938, H. and M. Townes 

 (Washington, USNM 63610). 



Paratypes: 29, Takoma Park, Md., Aug. 12, 1943, H. and M. 

 Townes (Townes). 9, Eastport, N. Y., July 23, 1938, H. and M. 

 Townes (Townes). 39, Farmingdale, N. Y., July 17, July 29, and 

 August 21, all in 1938, H. and M. Townes (Townes). cf, 9, Constance 



451582—59 5 



