28 U.S. NATIONAL MUSEUM BULLETIN 25 7 



in the two sexes, by more limited markings and by the darker hind- 

 wings of the male. The male genitalia of dicaeus and encausta are 

 rather similar. 



Archips difficilis (Meyrick, 1928) 



Figures 16-19, 507-508 



Cacoecia difficilis Meyrick, 1928, Exotic Microlepidoptera, vol. 3, p. 456 (cf?, 

 Borneo). — Clarke, 1955, Catalogue . . . Microlepidoptera . . . Mey- 

 rick, vol. 1, p. 116. 



Homona difficilis. — Diakonoflf, 1948, Treubia, vol. 19, p. 509 (Java) . 



Archips difficilis. — Clarke, 1958, Catalogue . . . Microlepidoptera . . .Mey- 

 rick, vol. 3, p. 39, pi. 19, figs. 3-3b (lectotype selected, figured). 



Distribution: Borneo, Java, Philippine Is. 



Material examined: Luzon, Benguet, Palali, 2000 ft., 28.XII.1912, 

 1 cf, genit. slide 5539. Mindanao, Lanao, plains, Kolambugan, 

 30.V.1914, 1 9, genit. slide 5543 (A. E. Wileman) (BM). GenitaHa 

 compared ^\ith a c^ specimen from Java, genit. slide 5540 (LM), 



Male genitaha: Tegumen and uncus rather small, the latter with a 

 slightly elevated, rounded top. Valva large, simple, cucullus almost 

 semicuTular, lower edge flattened; sacculus over 1/2, moderately 

 sclerotized, with a simple, narrowly triangular rising top. Transtilla 

 simple and narrow. Pulvinus large, semicircular. Aedeagus little 

 bent, lower edge of orifice with a moderate thorn. Cornuti, a couple 

 of slightly sinuate blades. 



Female genitalia: Genital sternite forming a sclerotized oblong- 

 truncate plate. Sterigma forming an inverted-triangular, pocket- 

 like sclerite, lamella postvaginalis being much broader than lamella 

 antevaginahs. Colliculmn represented by some indefinite small 

 sclerites. Ductus bursae simple, coiled once. Signum large and 

 strong, dagger-shaped, wall around its base distinctly sclerotized. 



Archips aperta, new species 



Figures 26, 41-42, 48, 511 



Female, 26 mm. Head and thorax deep ferruginous with a purple 

 hue. Palpus orange strongly mixed \vith ferruginous, except at bases 

 of basal and median segments. Antenna deep ferruginous purple. 

 Abdomen ferruginous, venter yellow orange. 



Forewing subtruncate, costa strongly sinuate, apex long, produced, 

 roimded-subfalcate, termen strongly sinuate, vertical, rounded 

 prominently below. Purple ferruginous, glossy, markings limited, 

 narrow^ deep ferruginous-browoi, dull strigulae. Basal fourth suffused 

 with darker ferruginous piu-ple, edge indefinite; transverse fascia 

 indicated by a narrow oblique strigula from the large costal promi- 



