262 U.S. NATIONAL MUSEUM BULLETIN 257 



//. corethrodes. There are, however, differences in neuration, as 

 described; in corethrodes the apex of the forewing is more produced. 



AcrocenoteSf new genus 



Head with long appressed scales, roughly spreading at the sides. 

 Ocellus absent. Proboscis very short. Antenna about 2/3, slightly 

 thickened throughout in female, minutely ciliate, scape elongate with 

 a long but sparse pecten. Labial palpus long, recurved, ascending, 

 flattened anteroposteriorly, smooth along posterior side, anterior side 

 throughout except basal half of median segment with a long roughly 

 projecting fringe of scales; terminal segment over 1/3, slightly oval, 

 subacute. Maxillary palpus slender, long, multisegmented, porrected. 

 Thorax smooth. Posterior tibia smooth-scaled. 



Forewing lanceolate, pointed, apex produced. Vein Ic not furcate 

 at base, 2 from far before angle, 3 from angle, 4, 5 distant, all these 

 veins rather short, 6 and 7 absent, cell open between 5 and 8, 9 and 

 10 remote, 11 from before middle of cell, upper edge of cell almost 

 obliterate along its basal half. Retinaculum along vein 12. 



Hindwing 1, cilia 2/3; subsemioval, pointed, apex moderately pro- 

 duced. Ic well defined, from base, 2 from well beyond middle, 3 from 

 angle, 4 remote, median, 5 and 6 long-stalked, 6 to costa, stalk forming 

 continuation of upper angle of cell, 7 free from base, parallel posteriorly, 

 shghtly diverging from beyond base. Frenulum long. 



Female genitalia of a simple type, apophyses very long and sclero- 

 tized, ovipositor bifid, points acute. Sterigma not modified. Ductus 

 bursae simple and rather long. Bursa copulatrLx ovoid. Signum 

 strong, inverted mushroom-like, a rounded body with a clavate 

 external process with a rounded top. 



Type species: Acrocenotes niphochrysa, new species. 



An interesting novel form with the hindwing neuration and signum 

 as in Acrolepia (perlepidella Stainton), but with other features quite 

 different. Unfortunately males are not available. 



Acrocenotes niphochrysa, new species 



Figures 413-414, 758 



Female, 15 mm. Head white touched with yellow. Palpus white, 

 frontal tuft mixed with tawny and blackish. Antenna pale yellowish. 

 Thorax white touched with yeUow, shoulder a trifle brighter yellow. 

 Abdomen pale ochreous. 



Forewing broadly lanceolate, apex pointed and produced, termen 

 gently curved, very oblique. Pale yellow, posterior 2/3 except towards 

 costa strewn with large rounded bright yeUow-ochreous scales. Cilia 

 pale ochreous, around apex and before upper half of termen with a 

 supramedian band of sparse black dusting. 



