226 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lis 



Remarks: In the genitalia of the holotype, figured by Clarke (1958), 

 the projected tubercles on the ventral margins of the valvae became 

 partly loose and look like free lobes directed ventrad. 



Pseudomeritastis clarkei, new species 



Plate 3 (Figs. 3-5) 



Male: Antenna, labial palpus, head, and thorax light gray; second 

 segment of labial palpus darker apicad, teraiinal segment brownish 

 gray; posterior crest of thorax ferruginous-brown; abdomen whitish 

 gray. Forewing light gray; markings brown ferruginous, edged and 

 in part transversely strigulated with reddish fuscous, arranged as 

 follows: a rotundate-subquadrate blotch on dorsum towards base, 

 reaching lower vein of discal cell; a longitudinal streak tapering ex- 

 ternad, located above this blotch and slightly shorter than half length 

 of discal cell; a much larger, irregularly shaped blotch, also resting 

 on dorsum and occupying most of external half of forewing; upper 

 margin of this blotch roundly excavated; this excavation divides upper 

 portion of blotch in two unequal parts, external of them larger; a 

 longitudinal, whitish streak within this blotch, separating its external 

 upper portion from ground portion of blotch; a triangular, light gray 

 dorsal area between two above-mentioned blotches, vertically striated 

 by brown-ferruginous and connected with light gray, subcostal area; 

 a rather narrow, slightly curved, brown-ferruginous subterminal 

 fascia, edged with reddish fuscous and running from about four-fifths 

 of costa to tornus; a whitish interspace between this fascia and men- 

 tioned large blotch; costa narrowly edged with light pinkish brown, 

 and gray dotted beneath this edge; cilia gray at base and whitish gray 

 at tips. Length of forewing 9 mm. Hindwing pale yellowish, 

 slightly darker externally and cream-white basally; ciha light yellow- 

 ish at base and whitish at tips, with a rather broad, grayish dividing 

 line around apex and parallel to upper portion of termen. 



Female: Unknown. 



Male genitalia: Apical portion of uncus elongate-spatulate; middle 

 process of gnathos broad, at base with two lateral, angular processes; 

 lateral arms of gnathos shaped as long, curved appendages ending 

 with brushes of long setae. Valva with a broad, moderately setose 

 cucullus; ledge of sacculus with a longitudinal carina protruding from 

 venti-al margin of valva and ending with a rather long, free, acute tip. 

 Aedeagus pediform; carina penis dorso-externad of caulis. 



Type: Holotype, male (genitalia on slide 15-Obr., 1963), 17 km. 

 southeast of Popayan, Cauca, Colombia, 2000 m., Jan. 10, 1959 (J. F. 

 Gates Clarke) ; USNM 67368. 



Remarks : Very close to valuta Meyrick, but difi"ering in some details 

 of the markings of the forewing, color of the hindwing, and in the 



