SCENOPINIDAE OF THE WORLD 

 183. Pseudatrichia unicolor Coquillett 



Figure 177 



273 



Pseudatrichia unicolor Coquillett, 1900, p. 500. 



This species has previously been known only from the male, and 

 though many specimens have been identified to this sjiecies the number 

 remaining is limited to only a few from the immediate vicinity of the 

 type-locality. The female is described below. 



Female. — Head black-brown; eyes red-brown, postocular ridge 

 broad, fringed with hairs along posterior margin, transversely striated; 

 frons wider than ocellar triangle, with median shining strip widest 

 above antennae, bordered by uniform bands of longitudinal striations 



Figure 177. — Pseudatrichia unicolor Coquillett, male, female: a, wing; b, c, lateral aspects 

 of male and female lieads; d, dorsal aspect of female head; e, enlarged detail of male 

 antenna; f-h, ventral, lateral and posterior aspects of male terminalia; i, ventral aspect 

 of female 8th sternum and 9th segment; ;, lateral aspect of female 8th and 9th segments. 



from lower eye margin to median ocellus, bands with a few hairs; 

 ocellar triangle not ele\ated, set oft", ocelli red-brown. Antenna with 

 first two segments red-brown; third segment black-brown, with a pile 

 of short hairs giving off a golden glint. 



Thorax dorsum black-brown, transversely striated; humeral callus 

 red-brown, supra-alar callus orange; scutellum black with red-brown 

 lateral margins; pleural areas red-brown. Wings hyaline, veins brown ; 

 halter stem brown; knob with brown base, remainder white. Front 

 leg coxa through femur straw yellow, tibia yellow-brown, tarsus brown ; 



