172 U.S. NATIONAL MUSEUM BULLETIN 257 



Tanyzancla pepona, new species 



Figures 256, 275, 643-644, 808 



Male, 24-25 mm. Head ochreoiis fuscous, roughish. Antenna 

 with flagellum ochreous fuscous, scape dark fuscous except apex, 

 ciliations under 1, pecten long and dense, fuscous with a pale ochreous 

 basal half. Palpus long in male, median segment less than 2X 

 length of face, in female longer and more slender, recurved, terminal 

 segment 5/6; dark fuscous, median segment with a subapical broad 

 ring, below this mixed with ochreous, tip pale ochreous; terminal 

 segment dark fuscous, median part mixed with pale ochreous, posterior 

 edge pale ochreous. Thorax pale ochreous, patagia light ochreous, 

 tegulae dark fuscous, with pale tips. Abdomen fuscous brownish, 

 anal tuft and posterior edges of tergites pale ochreous. 



Forewing elongate suboval, dilated, broadest at 4/5, costa gently- 

 curved at base, faintly concave in middle, considerably^ curved before 

 apex, apex obtusely pointed, termen hardly concave, obhque, long. 

 Wliitish ochreous, markings extended, blackish fuscous. Base with 

 a direct transverse band, below emitting a pointed streak parallel 

 to basal third of fold, above forming a rather narrow streak along 

 base of costal edge, dilated beyond middle; a very irregular undulate 

 transverse fascia of pale fuscous dusting from this dilatation to dorsum 

 before middle, including rather large slightly elongate first discal 

 stigma; a large rounded blackish patch in middle of disc halfway 

 between stigma and base, emarginate posteriorly; somewhat less than 

 posterior half of wing as far as fold blackish fuscous, including a 

 rounded pale ochreous spot below second discal stigma which is 

 blackish and large, but little contrasting; posterior edge of dark 

 half of wing irregular, partly suffused, with several long and narrow 

 teeth; a brighter ochreous triangular spot on 2/3 of costa conspicuous; 

 a whitish coarse dusting with a distinct gloss tending to form a trans- 

 verse broad band from costa before apex to dorsum before tornus, 

 gradually narrowed downwards; another band of similar glossy 

 whitish dusting formed by a series of regular short intraneural streaks, 

 half way between preceding and wing margin and parallel to that 

 margin, below costa before apex, before apex and termen, to tornus. 

 Cilia ochreous, infuscated, above apex becoming dark fuscous. 



Hindwing golden ochreous, glossy, rather deeply infuscated, 

 extreme apex fuscous. Cilia concolorous, with a pale base and a 

 darker subbasal faint band. 



Female, 28 mm. A worn specimen, but very probably the sex 

 partner. Pale ochreous, posterior half of wing infuscated but less 

 dark than in male. Basal dark patch and costal streak discernible. 

 Stigmata dark fuscous, first discal elongate, second discal rounded, 

 plical rather beyond first discal; triangular pale ochreous costal spot 



