SCENOPINIDAE OF THE WORLD 



159 



Thorax dorsum black with a thin powder of white, humeral and 

 supra-alar calli red-brown to orange-brown; pleura red-brown to 

 black-brown, dusted with white in exposed areas. Wings milky white, 

 veins very faint, nearlv white, R5 and Ml + 2 broadly separated, 

 Ml + 2 ending behind the tip of the wing; halter stem brown, knob 

 white. Legs with femora and tibiae dark red-brown, tarsi straw yellow. 



Abdomen dark red-brown, segments 3-5 very broadly membranous 

 white, with thin sclerotized anterior bands. For details of ninth 

 segment, see figure. 



Figure 107. — Scenopinus weemsi, new species, male, female: a, wing; b, c, lateral and frontal 

 aspects of male head; d, e, frontal and lateral aspects of female head; /, enlarged lateral 

 aspect of female head and antenna; g, enlarged detail of male antenna; h-j, ventral, lateral 

 and posterior aspects of male terminalia; k, ventral aspect of female 8th sternum; /, lateral 

 aspect of female 8th and 9th segments; m, female 9th sternum and bursa. 



Female. — Head black-brown; eyes black-brown, with a very thin 

 postocular ridge fringed with hairs; back of head concave, covered 

 with a silvery pile, frons broad, rugose, slightly swollen, with a median 

 groove extending about halfway up the frontal area, lower fourth of 

 frons red-brown. Ocellar tubercle not set off from frons, ocelli orange. 

 Antennae as in male. 



Thorax dorsum red-brown, otherwise as in male; pleura as in male, 

 halter stem brown, knob white with tan dorsal portion. Legs as in male. 



