6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 125 
Hysterosia turialba Busck 
Figure 3; Puate 1 (ria. 1) 
Hysterosia turialba Busck, 1920, Ins. Insc. Mens., vol. 8, nos. 4-6, p. 86. 
Male genitalia slide AB Dec. 21, 1925. Harpe triangular; cucullus 
pointed; costa moderately sclerotized; from base of sacculus a long, 
irregular, sclerotized arm, free at distal extremity and ornamented 
with short ridges on each side. Uncus broad, divided, each lateral 
element terminating in a sharp point; socii recurved, slender. Vinculum 
a Acdré 
Ane 
Ficure 3.—Hysterosia turialba Busck: a, ventral view of male genitalia with left harpe and 
aedeagus removed; b, aedeagus; ¢, ventral view of female genitalia. 
