182 U.S. NATIONAL MUSEUM BULLETIN 257 



into a rounded knob. Lamella postvaginalis represented by similar, 

 but smaller sclerites, not extended laterally and without thickened 

 caudal edge. Lamella antevaginalis, an erected, inverted-trape- 

 zoidal sclerite, with a small V-shaped sclerite below it (rostrad). 

 Anapophyses rather short. Ductus bursae long and narrow. Bursa 

 copulatrix moderate, ovoid. Signum, a transverse, oval plate, 

 scobinate along edge and slightly constricted in middle. 



Material examined: Luzon, Mt. Apo, 70-B, 5. III. 1945, 1 cf, holo- 

 type, genit. slide 5105; Babasit, Pangasinan, 16. III. 1945, 1 9, allotype, 

 genit. slide 5103. Agoo, La Union, 4.V.1945, 3.VIII.1945, 2 9, 

 paratypes. Mt. Apo, 70-B, 12.V.1945, 1 9, paratype, genit. slide 

 5106. 1 cf, 4 9 (J.G. Franclemont) (GUI). Luzon, Benguet 

 Subprov., Pauai, Haights Place, 7000 ft., 16.XI.1912 (A.E. Wileman) 



I 9, paratype, genit. slide 5574. Benguet Subprov., Klondyke, 

 800 ft., 15.III-19.IV.1912 and 21.XII.1912, genit. slides cf 5590, 

 5593, 5598, and 5646, 9 5748; Palali, 2000 ft., 22.XII.1912 (all by 

 A.E. Wileman), 1 9, genit. slides 5653. 1 cf, 6 9. In total 5 d', 



II 9 (BM). 



Probably nearest to C. corsota Meyrick. The holotype and the 

 allotype show slight differences in neuration which may be due to 

 sexual dimorphism. The male lacks any markings, but these are 

 very faint in the three female paratypes as well. All other struc- 

 tures are identical; therefore, I am satisfied that the sexes belong 

 together. 



Chrysonoma hypocapna, new species 



Figures 282, 655 



Male, 13.5 mm. Head and thorax whitish ochreous. Antenna 

 whitish ochreous, flagellum grejdsh below. Palpus whitish ochreous, 

 median segment with a slender fuscous ring just below apex, terminal 

 segment with fuscous base; median segment shghtly thickened, 

 terminal slender, shorter than median. Abdomen pale ochreous. 



Foremng suboval, costa moderately curved, apex roimded, termen 

 moderately rounded, obUque. Pale yellow, markings limited and 

 very faint, hght purpUsh fuscous. A minute hue along extreme edge 

 of base of costa; indication of a curved hne, forming a semioval mark, 

 from before 3/5 of costa to above tornus, thence to costa before apex, 

 very faint, partly obliterate. CiUa pale yeUow. 



Hindwing light grey, dusted throughout with fuscous. CiHa grey 

 fuscous. 



Male genitaUa: Similar to those of Chrysonoma hesitans, but with 

 cucullus shorter than the spine of the sacculus, angulate and thickened 

 at the angulation; sacculus spine shorter. Otherwise as in C. hesitans, 

 new species. 



