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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 122 



apically, equal to or slightly exceeding gena; postcylpeal sutures 

 curved mesally above antenual pits; pronotum tlu-ee times as long as 

 vertex or slightly less; hind femoral chaetotaxy 2-1-1; female with 

 posterior margin of abdominal sternum VII sinuate posteriorly, a 

 heavily sclerotized band extending across posterior margin. 



Male pygofer with less than 15 setae, ventral margin produced; 

 plates slender, triangular, extendmg posteriorly as far as pygofer 

 apex, connective expanded apically and truncate, equal in length to 

 style, stem and arms equal m length, angle between arms approximately 

 45 degrees; style with preapical lobe rounded, apical extension slightly 

 curved and acute; aedeagus tapered gradually from base to apex, 



Figure 18. — B. caldwelli: a, aedeagus, lateral view; b, style and connective, dorsal view; c, 

 valve and plate, ventral view; d, male pygofer, lateral view; e, female abdominal sternum 

 VII, ventral view. 



curved dorsally, shaft in posteroventral view with apex troughlike, 

 dorsal margin exceeding ventral margm, slightly notched apically. 



Color stramineous to brown; face without oblique brown lines; 

 vertex and pronotum commonly irregidarly marked with faint darker 

 longitudinal lines or other orange-brown areas; scuteUum usually with 

 orange markings; thoracic venter usually dark; fore wings hyalme to 

 subhyaline, commonly concolorous with body color. 



Holotype male from Experiment Station, Rio Piedras, Puerto Rico, 

 July 11, 1917 (H. Morrison), in the U.S. National Museum. Paratype 

 males, same data, in the U.S. National Museum and at North Carolma 

 State University. This is a widespread subtropical and tropical 



