128 U.S. NATIONAL MUSEUM BULLETIN 257 



Male genitalia: Uncus cubical, with small apical clavate process, 

 below and ventrad of this a semicircular bow and in front of this the 

 usual hook. Anellus large with sclerotized edges, forming on top 

 long processes, bent twuce. Valva moderately long and slender, 

 curved upwards and finely haired along posterior half. 



Female genitalia: Lamella antevaginalis half-cup-shaped, with a 

 deep frontal excision. Signum moderate, transverse, finely 

 denticulate. 



Material examined: Luzon, Benguet Subprov., Baguio (Baker), 

 1 cf, holotype, genit. slide 5234; 1 9 allotype, genit. slide 5235; 

 1 cf, paratype (USNM). Same locality, LVI.1945 (J.G. Francle- 

 mont), 1 cf, paratype (abdomen missing, right antenna intact) (GUI). 

 Total 3 cf , 1 9. One specimen was named " Canthonistis amphicarpa 

 Meyrick," apparently by Meyrick himself; however, this Javanese 

 species has never been recorded from the Philippine Islands. I am 

 now satisfied that the species is distinct, although closely related 

 with amphicarpa. 



The male genitalia are less robust than those of the Javanese 

 species and differ also slightly but distinctly as follows. The cucullus 

 is more slender and stronger curved. The vinculum is less sclero- 

 tized, inverted-sub trapezoidal (in amphicarpa triangular and pointed). 

 The jiLxta is weaker, slightly narrower, its lobes more slender and less 

 sclerotized. The gnathos hook is larger, its stalk not narrowed at 

 base. The aedeagus with cornuti forming three slender, pointed 

 sheafs (in amphicarpa one slender and long and two thick pointed 

 sheafs discernible). 



The genitalia of Canthonistis amphicarpa Meyrick used for com- 

 parison are those of the lectotype, in the Leiden Museum, herewith 

 selected: a male, with a handwritten label "W. Java, Preanger, 

 5000 vt. (Sythoff) cf ," genit. slide 5510. 



Frisilia Walker, 1864 

 Frisilia drimyla, new species 



Figures 194, 600 



Female, 15 mm. Head ochreous grey whitish, face greyish white. 

 Antenna pale ochreous, finely ringed with darker, scape grey. Palpus 

 with a very long, pointed tuft at apex of median segment below, 

 terminal segment long, recurved, very narrow; median segment 

 ochreous tawny, upper edge posteriorly infuscated and with a white 

 submarginal horizontal line; long hair-scales, which are ap- 

 pressed posteriorly, raised anteriorly; terminal segment dark brown, 

 silvery white above. Thorax pale ochreous, suffused with pale grey 

 except on tegula. Abdomen pale ochreous. Posterior tibia light 

 yellowish ochreous. 



