210 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



white, but heavily overlaid with dark brown and saffron yellow 

 scales. A large spot on the middle of costa and the basal half of 

 dorsum pure white. The golden yellow consists of a broad streak 

 along the fold, a large ill-defined spot at the end of the cell transversed 

 by a white zigzag line, and a broad ill-defined band, running from this 

 spot down to termen and along the termined edge around apex to costa. 

 The space between this golden yellow edge and the central yellow 

 spot is suffused with dark brown scales, densest toward apex ; a large 

 dark brown triangular spot occupies the space along basal third of 

 costa across the cell to the yellow fold. Hindwings blackish brown; 

 cilia lighter brown. Abdomen dark brown above; underside pale 

 golden; genitalia saffron. Underside of the wings dark fuscous. 

 Front legs thickened with tufts of carmine red, tipped with white. 

 Hind and middle legs yellowish, shaded with brown; tarsal tufts small, 

 whitish. 



Alar expanse. — 25 mm. 



Habitat. — St. Jean, Maroni River, French Guiana. Wm. Schaus, 

 collector. 



Type.— Cat. No. 13563, U.S.N.M. 



HASTA, new genus. 



Type. — Hasta argentidorsella Busck. 



Labial palpi very long, recurved, overarching the thorax; second 

 joint particularly long with basal half thin and upper half thickened 

 with compressed scales which protrude at apex; terminal joint thin, 

 smooth pointed, shorter than second. Antenna? simple, with pecten 

 on basal joint. Forewings two and a half times as long as broad; 

 costa evenly arched ; apex bluntly pointed ; termen sinuate below apex; 

 anal angle pronounced ; 1 2 veins ; 7 and 8 stalked ; 7 to termen ; 9 out of 

 the stalk of 7 and 8; 2 and 3 stalked; 1 b furcate at base. Hindwings 

 as broad as forewings; costa straight; apex blunt; termen and dorsum 

 evenly rounded; 8 veins; 6 and 7 parallel; 3 and 4 connate; 5 cubital. 

 Posterior tibiae roughly haired. 



Allied to AncJiinia Hiibner, but without raised scales on the fore- 

 wings, and differing as well in palpal structure as in the venation and 

 form of the forewing. 



HASTA ARGENTIDORSELLA. new species. 

 Plate 8, fig. 3. 



Labial palpi ocherous; tip of second joint brown. Face light yel- 

 low. Head dark ocherous. Thorax ocherous with a large central 

 and posterior white patch. Forewings light yellowish brown, lightest 

 along the costa; dorsum from base nearly to tornus silvery white, the 

 color reaching up beyond the fold in an ill-defined triangle just beyond 

 the middle of the wing; this dorsal white is broken by a dark brown 

 spot, reaching from the upper dark part of the wing to the dorsal 



