NO. 3543 MICROLEPIDOPTERA, XI — OBRAZTSOV 3 



scales. Antenna dentate, in female with teeth shorter, in both sexes 

 biciliate, with setae shorter than width of antennal shaft; scapus 

 cylindrical. Labial palpus about three times as long as width of 

 eye, obliquely ascending, with apex rather porrect; basal segment 

 pronounced; second segment longest of all segments, smoothly scaled, 

 slightly dilated apicad; terminal segment about half as long as second, 

 tapering distad, and ending rather acutely. Proboscis moderate. 

 Thorax smooth. 



Forewing smoothly scaled, elongate subrectangular; costa strongly 

 arched in basal third, then gently arcuate to almost straight; apex 

 rotundate; termen convex, shghtly oblique; tornus broadly rotundate; 

 dorsum very gently arched to almost straight or flatly undulate. 

 No costal fold in male. Twelve veins, all separate: S gently sinuate; 

 Ri from about middle of discal cell; R2 less than twice as close to R3 

 as to Ri; R3 twice as remote from R4 as latter from R5; R4 running to 

 costa, R5 to termen, never in apex, although sometimes rather close 

 to it; Ml nearer to Rg than to M2; M2, Mg, and Cuj almost equidistant, 

 latter originating from lower angle of discal cell; Cuo from about 

 two-thirds of discal cell; Ai indiscernible basally, distinct tornally; 

 basal fork of A2+3 about one-fourth as long as entire vein. Hindwing 

 sub trapezoidal, as broad as forewing or narrower; costa gently arched 

 or slightly sinuate; apex rotundate; termen gently convex to ahnost 

 flat; tornus broadly and flatly rotundate; dorsum straight or slightly 

 concave in external portion, strongly curved basally. Eight veins: 

 S straight or slightly sinuate; R and Mi closely parallel to about their 

 half, then diverging; M2 gently descending basad, and at basis about 

 twice as close to Mg as at termen; Mg and Cui connate or stalked, 

 originating at lower angle of discal cell; Cu2 from two-thirds of discal 

 cell; Ai well developed or vestigial; A2 with basal fork, twice as close 

 to A3 as to Ai. No cubital pec ten. 



Male genitalia. — Eighth abdominal segment with a subtri- 

 angular mensis ventralis having a slightly stronger sclerotized proximal 

 angle. Uncus hooklike, moderately long, strongly sclerotized; 

 gnathos with a dilated middle process; socius absent or indicated by 

 few hau's on internolateral fold of tegumen. Tegumen moderately 

 broad with shoulders oblique; peduncidi moderately broad, narrowing 

 ventrad; saccus broad, not deep, lateraUy dilated. Valva moderately 

 sclerotized, roundly and broadly dilated in basal two-thirds, and 

 ending with a much narrower cucuUus turned upward; valvula with 

 ventral portion longitudinally folded and reaching into cucuUus, and 

 with basal portion bearing a haired pulvinus; sacculus stronger 

 sclerotized, rather broad, without a free tip, and with ventral edge 

 subangular. Fultura superior complete, narrowed at middle; fultura 

 inferior flatly subcordate, with weak, haired dorsal papillae; caulis 



