46 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Head wider than pronotum; vertex as long next to eye as medially 

 or slightly longer medially, interocular width more than three times 

 median length; ocellus located at a distance equal to or slightly more 

 than its diameter from eye; anteclypeus slightly wider apically, not 

 exceeding gena; postclypeal sutures parallel above antennal pits; 

 pronotum from slightly less than to three times as long as vertex; hind 

 femoral chaetotaxy 2-1-1 or 2-2-1; female with posterior margin of 

 abdominal sternum VII sinuate posteriorly, with a rounded median 

 lobe. 



Male pygofer not heavily setose, with a small lobe on posteroventral 

 margin; plates broadly triangidar; connective expanded apically and 



Figure 30. — B. rohusta: a, aedeagus, lateral view; b, style and connective, dorsal view; 

 c, valve and plate, ventral view; d, male pygofer, lateral view. 



bifid, approximately equal in length to style, stem slightly longer than 

 arms which diverge at approximately 30 degrees; style with preapical 

 lobe rounded, apical extension strongly ciu-ved laterally, acute 

 apically; aedeagus with dorsal apodeme prominent, shaft evenly 

 curved dorsally then ventrally, gradually tapered, rounded apically. 



Color stramineous to light green; face A\dthout obhque brown hues; 

 thoracic venter not dark; forewings hyahne to subhyahne, usually 

 tinted as body color. 



All efforts to locate the holotype of B.flavcscens (Baker) have been 

 unsuccessful. The descriptions of Baker (1903) and Osborn (1926) 



