278 U.S. NATIONAL MUSEUM BULLETIN 277 



Type-locality: Williams, Arizona, 7 July (H. S. Barber) ; female as 

 Pseudatrichia Jlaviceps, Williams, Arizona, 15 July (H. S. Barber). 



Types: (USNM) 6194 and 6193. 



Specimens examined: Icf, 19, paratypes of the above specimens 

 (USNM); 1 cf, Mannix California, 25 April 1951 (Timberlake) 

 (PHT); 1 cf. Strawberry Valley, San Jacinto Mts., California, 

 12 July 1912 (J. C. Bridwell) (USNM). 



186. Belosta telfordi, new species 



Figure 180 



Female. — Head brown; eyes black-brown; frons dark brown, 

 ocellar tubercle red-brown, mouthparts atrophied, palpi bulbous. An- 

 tennae black-brown; see figure for details. (The head was collapsed 

 so was removed, relaxed in KOH, and replaced on the specimen.) 



Thorax dorsum black-brown, with medium long white hairs in 

 scattered patches; humeral callus black-brown; scutellum black- 

 brown. Pleural areas prothorax red-brown, mesanepisternum black- 

 brown with white hairs, katepisternum black-brown. Wings hyaline, 

 veins brown; halter stem red-brown, knob red-brown except ventral 

 tip white. Foreleg with femur black-brown with yellow-brown dorsal 

 surface and knee, remainder of leg black-brown ; middle and hind legs 

 black-brown, femora with yellow knee. 



Abdomen black-brown, intersegmental membranes with black- 

 brown midline and white lateral portions. Eighth sternum long, 

 sloping; accessory gland short with flaring base, sclerotized portion 

 twice as long as broad ; see figure. 



Male. — Unknown. 



Length: Female body 6.5 mm., wing 4.5 mm. 



Type-locahty: Tucson, Arizona; 17 March 1957 (A. D. Telford). 



Holotype: Female (USNM) 68005. 



187. Belosta termitophaga, new species 



Figure 181 



Female. — Head cream; eyes dark red-brown; frons very broad, 

 tan, shining, with two longitudinal crescent-shaped marks, a brown 

 patch on gena below the base of the eye; head behind the eye cream, 

 center of back of head brown; mouthparts atrophied, palpi bulbous; 

 ocellar tubercle red-brown, ocelli clear. Antennae with first segment 

 short, brown; second segment tan; third segment brown, tapering, 

 over three times as long as 1 and 2 combined. 



Thorax dorsum black, with two anterior tan patches above the 

 humeral callus, covered with medium long hairs, humeral and supra- 

 alar calli tan, scutellum red-brown. Propleura tan, mesopleural areas 



