12 U.S. NATIONAL MUSEUM BULLETIN 257 



with bright yellow ochreous; with six dark brown dots, second and 

 thu'd of these finely continued across costal fold by oblique brownish 

 lines; basal patch indicated only by an almost straight and sub- 

 horizontal streak from beyond base to just before middle of wing, 

 clavate posteriorly; transverse fascia beginning with a narrow hori- 

 zontal line edging costal fold below, from well before base of wing 

 (this line often obliterate), abruptly dilated beyond this fold, not 

 reaching its lower edge, neither vein 12; this fascia moderately 

 oblique, rather curved (outwards-convex) as far as lower angle of 

 cell, hardly oblique thence; it is gradually dilated from its middle 

 towards both ends, lower end almost twice as broad as upper, some- 

 times extended along dorsum almost to tornus; costal patch sub- 

 fasciate, wedge-shaped, slightly curved, with acute point to tornus, 

 its top extending on costa from beyond the sixth dot to well before 

 apex; anterior edge of this patch usually moderately concave, some- 

 times slightly convex, posterior edge sometimes slightly excavate 

 above middle; a minute, dark brown marginal Ime around apex, 

 interrupted on veins. Sometimes wing between markings sprinkled 

 with dark brown. Cilia light golden yellow. 



Hindwing semitransparent, pale yellow with a pinkish-golden 

 gloss in certain lights, except along costa and along certain veins; 

 dorsum as far as vein 1 c suffused with pale grey. Cilia hght golden 

 yellow. 



Male genitalia: Tegumen higher than broad, uncus long, curved, 

 slightly narrowed at base, less narrowed above middle, top rounded- 

 clavate. Socius small, free and pending, rounded, almost as long 

 as broad. Gnathos with broad arms forming a quadrangle with 

 elongate angles, lower angles rounded and produced, finely denticu- 

 late; hook strongly sclerotized, top clavate and rounded. Valva 

 moderate, elongate-oval, sacculus rather narrow throughout, its edge 

 forming a narrow, sclerotized fold, extending from beyond middle 

 of sacculus to its indefinite top: disc of valva with a moderate fold 

 above sacculus and a smaller transverse fold at base; cucullus double. 

 Transtilla moderate, thorny; pulvinus small. Aedeagus rather 

 simply shaped, little curved, slightly dilated basad, without a thorn. 

 (Slides studied: nos. 5000, 5002, 5504, 5024; figured, 5504, 5024.) 



Female, 17-19 mm. Head and thorax shghtly darker than in the 

 male, thorax somewhat suffused and mixed with tawny, except on 

 tegulae. Abdomen brighter yellow. 



Forewing broad, truncate, costa strongly arched anteriorly, straight 

 posteriorly, apex obtusely rectangular, termen hardly concave, 

 vertical. Pale yellow, with numerous deeper ochreous-yellow small 

 transverse strigulae, arranged in oblique series. Markings fuscous 



