292 



U.S. NATIONAL MUSEUM BULLETIN 277 



Figure ISS.—Prepseudatrichia stenogaster (Seguy), female: a, wing; h, lateral aspect of head; 

 c, dorsal aspect of head; d, enlarged detail of antenna; <r, ventral left and dorsal right aspects 

 of 8th and 9th segments; /, lateral aspect of 8th and 9th segments; i:, 9th sternum and 

 bursa, floor of cavity outlined. 



