48 



U. S. NATIONAL MUSEUM BULLETIN 216 



11. Trieces integer, new species 



Figure 181, c 



Front wing 3.5 to 3.8 mm. long; face about 1.15 as wide as high, 

 its punctures of moderate size and strength, the interspaces about 0.5 

 their diameter; face and clypeus in profile strongly convex; attach- 

 ment of front tentorial arm visible as a dark, narrowly lanceolate 

 area around the clypeal fovea; eye apparently without hairs; flagellum 

 with about 31 segments in male and about 25 segments in female; 

 median segments of female flagellum about 1.0 as long as wide; 

 front spur of middle tibia about 0.52 as long as hind spur; second seg- 

 ment of middle tarsus about 2.15 as long as wide in male, about 1.85 

 as long as wide in female; metapleurum without hairs except for 

 usually a very few in its upper front corner and sometimes one to 

 three scattered on its disc; wrinkles on metapleurum few, moderately 

 strong, occupying the median part of its lower 0.3. 



Male: Black. Face, lower lateral corner of frons, front part of 

 cheek, clypeus, and mouth parts, pale yellow; antenna blackish brown, 

 tinged with reddish brown below; tegula dark fulvous to dark brown, 

 pale 3^ellow basally; front and middle coxae pale yellow, fulvous 

 basally; front and middle trochanters pale yellow; apex of front and 

 middle femora and base of front and middle tibia tinged with pale 

 yellow; hind coxa black, ferruginous apically; hind tarsus infuscate 

 brown; legs fulvous except as described otherwise. 



Female: Black. Face, front part of cheek, and clypeus fulvous; 

 lower lateral corner of frons yellowish fulvous; mouth parts reddish 

 brown; antenna reddish brown, darker above; tegula dark reddish 

 brown; legs fulvoferruginous, the hind coxa more or less black except 

 apically and the hind femur occasionally brownish. 



This species is rather close to the Mexican T. platysoma Townes, 

 1946, which differs in having the body a little more depressed, the 



Figure 27. — Localities for Tri- 

 eces integer. 



