42 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 117 



bluntly pointed terminal process and with ventral edge curled slightly 

 before the terminal process. Gnathos extremely asymmetrical, 

 the long, curved distal process arising on left side. Uncus short, 

 broad, rounded, posterior edge slightly indented. Vinculum very 

 broad, anterior edge deeply excavated. Aedeagus slightly bent and 

 armed with a short, stout terminal thorn. 



Female genitalia (slide 10700) : Ventral hp of ostium excessively 

 developed, dilated posteriorly and posterior edge excavated (vari- 

 able) . Posterior two-fifths of ductus bursae very strongly sclerotized, 

 round in cross section, remainder of ductus bm'sae membranous. 

 Inception of ductus seminalis slightly anterior to sclerotized part 

 of ductus bursae. 



Type: Masatierra: Villagra (Feb. 22, 1951). 



Described from the type female, one male paratype (same data as 

 type) and one male and three female paratypes as foUows: Masa- 

 tierra: Cerro Alto, 600 m., 2 99 (Feb. 1, 1952); Picacho Central, 

 600 m., 9 (Feb. 4, 1952); Quebrada la Laura, cf (Mar. 1, 1951). 



In type of male genitalia reminiscent of Fernandocrambus fuscus. 

 In general appearance chiloma is more like imitator than any of the 

 other species of this genus. From imitator, this species can be separated 

 easUy by the absence of a costal process of the harpe and the enormous 

 development of the ventral lip of the ostium. 



Juania imperfecta^ new species 



Figure 35 



Alar expanse 18 mm. (estimated; apices of both forewings missing). 



Labial palpus clay color; fii'st and second segments buff on inner 

 side. Antenna grayish fuscous, with scattered clay-colored scales; 

 scape clay color. Head, thorax, and ground color of forewing clay 

 color; posterior tip of tegula and posterior end of thorax slightly 

 lighter than ground color; from base of wing to end of cell a yellowish 

 buflf, longitudinal streak broadens and darkens, merging with the 

 ground color toward termen; from the longitudinal streak to costa 

 wing shaded dark brown, this color fading toward apex; cilia (at 

 tornus) gray. Hind wing gray; ciha pale gray with a dark basal 

 band. Legs buflf, strongly overlaid and suffused with grayish fuscous. 

 Abdomen grayish fuscous, paler beneath. 



Male genitalia (slide 10649): Harpe moderately broad; costa 

 short, strongly sclerotized, arched; cucullus triangular with broad 

 base; sacculus wide, strongly sclerotized, cupped, bluntly rounded, 

 apex curved veutrad. Anellus a broad, lightly sclerotized plate. 

 Gnathos symmetrical, terminating in a short point. Uncus broad 

 basaUy, pointed, about two-thirds the length of gnathos. Vinculum 



