pepsestae: tribe pepsesti 



103 



Black. Mandible, apical margin of clypeus, most of scape and pedicel, 

 thorax except for some fuscous sutures, part of each coxa, apex and 

 more or less extensive suffusion of femora, tibiae, tarsi, and abdomen 

 except for broad apical margins of each segment dull ferruginous. 



Type: 9, on dried mud, 10 miles west of Fort Davis, Tex., 5,000 ft., 

 July 15 to 23, 1948, H. E. Evans (Washington, USNM 61795). 



8. Priocnemis (Priocnemis') nigriceps (Ashmcad) 



Myrmecosalius nigriceps Ashmead, 1903, Proc. Ent. Soc. Washington, vol. 5, p. 

 308, 9. Type: 9 , Texas (Washington). 



Male: Forewing 3.2 to 4 mm. long; frons mat, with close, minute, 

 shallow punctures ; exposed part of subgenital plate UTegularly spatu- 

 late, its basal half with a large, flat, coarsely punctate, triangular area 

 with long erect hairs, its apical half polished, decurved, with a median 

 row of long erect hairs but otherwise bare. 



Figure 51. — Localities lor Priocnemis nigriceps. 



Black. Apical half of mandible, first abdominal segment except 

 basally, second abdominal segment entirely, and often the thii-d ab- 

 dominal segment basally rufous; wings faintly infuscate. 



It is not certain that this male is correctly associated with the 

 female. 



Female : Body 4.5 to 7 mm. long ; frons mat, with very fine punctures 

 separated by about 0.5 their diameter; wings vestigial, the forewing 

 about 0.3 as long as the thorax. 



Rufous. Head except for the clypeus and mouth parts black; 

 antenna rufous basally, the rest blackish; trochanters more or less 

 infuscate. 



Specimen's: cf , Sioux City, Iowa, May 3, 1937, C. N. Ainsiie (Wash- 

 ington) ; 9, Sioux City, Iowa, Aug. 8, 1928, C. N. Ainsiie (Washington), 

 cf, Manhattan, Kans., June 14, 1935, D. A. Wilbur (Manhattan). 

 9, Riley County, Kans., Oct. 6, J. B. Norton (Manhattan), cf, 



