284" U.S. NATIONAL MUSEUM BULLETIN 277 



flabellum not expanded; palpi short. Antennae black-brown, first 

 segment short, second twice as long and wide as first, third segment 

 pear-shaped with a bitruncated terminal portion with a median peg; 

 see figure for details. 



Thorax dorsum black-brown, dusted gray pollinose; humeral callus 

 brown with a cream lateral margin; scutellum black-brown; pleura 

 black-brown. Wings milky white, veins tan along anterior portion 

 nearly white behind; halter stem bro^vn, knob immaculately white. 

 Legs all black-brown dusted pollinose, with tan joints. 



Abdomen second segment dark red-brown dusted pollinose, with a 

 narrow white or tan posterior membranous margin, remaining seg- 

 ments dark red-brown dusted pollinose, with large crescents of white 

 membrane on dorsal portion occupying over half the length of the 

 segment, sterna sclerotized. Ninth tergum with dark brown basal 

 third, remainder white with two brown spots at about the midpor- 

 tion, aedeagus not exposed; see figure for details. 



Female. — Unknown. 



Length: Male body 2.2 mm., wing 1.7 mm. 



Type-locality: Karroo, at Junction of Calvinia-Sutherland Rd. 

 near Liverdoorn Ceres, w. Cape Prov., [Republic of] South Africa; 

 23 October 1959 (B. and P. Stuckenberg) . 



Holotype: Male (NMP). 



190. Propebrevitrichia turneri, new species 



Figure 184 



Male. — Head brown; eyes tan above, light brown below; frons 

 small, triangular, with a median groove, covered with light brown 

 scales; back of head convex laterally, covered with tan scales; genae 

 covered with brown scales and long hairs; mouthparts brown, long; 

 palpi tan, half the length of the rostrum; ocellar tubercle dark brown, 

 covered with tan scales; ocelli orange. Antennae with first two seg- 

 ments brown, short, second twice as large as the first; third segment 

 red-broAvn, latero-basal portion orange, covered with scales, ending 

 in two points. 



Thorax red-brown, covered with golden brown scales, with two 

 brown bands laterad of the midline ; humeral and supra-alar calli tan ; 

 pleural areas red-brown, covered with tan scales. Wings smoky, 

 iridescent when reflecting light; veins tan; halter stem tan, knob 

 white. Legs with femora red-brown, covered with tan scales, knees 

 tan; tibiae and tarsi red-brown with tan scales. 



Abdomen second segment red-brown, covered with tan scales, a 

 membranous white posterior border; third segment with anterior 

 half red-brown scaled, posterior half white, membranous; fourth 

 segment nearly all white, remaining segments white; ninth tergum 



