26 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 126 
area finely irrorate with grayish fuscous; underside lightly mottled 
with grayish fuscous; cilia mixed gray and yellow ocher with dark 
gray basal line. Hindwing sordid whitish mottled with grayish fuscous; 
cilia ocherous white with gray subbasal line. Foreleg ocherous white; 
femur and tibia overlaid with fuscous on outer side; tarsal segments 
broadly banded with grayish fuscous; midleg similar to foreleg; 
hindleg ocherous white; femur sparsely irrorate with grayish fuscous. 
Abdomen pale buff; dorsally suffused with grayish fuscous; ventrally 
with slight, fuscous, median irroration. 
Male genitalia slide JFGC no. 11635. Harpe triangular, broad 
basally, tapering to a pointed cucullus. Vinculum coalesced, with 
median point. Tegumen rounded, broad. Anellus a broad, sclerotized 
plate. Aedeagus moderately stout, sharply curved at distal third, 
sharply pointed; vesica armed with a single, slightly curved, slender 
cornutus. 
Holotype: U.S. National Museum No. 69745. 
Type-locality: Argentina, Tucumdn, Ciudad Universitaria, 800 m. 
Distribution: Known only from the type-locality. 
Described from the unique male holotype (20.11.59, J. F. G. 
Clarke). 
Similar to Phalonia sublimis Meyrick from Peru, but lacking the 
contrasting transverse fascia of the forewing of that species. 
Ficure 13.—Cochylis laetitia, new species: a, ventral view of male genitalia with left 
harpe and aedeagus removed; b, aedeagus. 
