NEOTROPICAL MICROLEPIDOPTERA, VII — OBRAZTSOV 223 



strongly bent downwards to base; M2, M3, and Cui close to each 

 other at base, but distincly separated; Cui originates from lower angle 

 of discal cell, Cu2 from about two-thirds; Ai very weak; A2 with basal 

 fork; A3 weak, Discal cell somewhat widened in middle portion; 

 cubitus without pecten; basal fork of A2 with a brush of long hairs. 



Male genitaha : Tegumen moderately broad, with oblique shoulders ; 

 peduncuH gradually narrowing ventrad; saccus complete, rounded. 

 Valva elongate, in apical portion somewhat narrower than basally; 

 costa narrowly sclerotized ; sacculus well developed, represented by a 

 long, sclerotized, longitudinal ledge ending with an acute projection 

 protruding from ventral margin of valva; or this ledge is rather short, 

 not protruding from valva and having a curved, longitudinal fold bear- 

 ing a brush of long hairs ; cucuUus more or less haired. Uncus moderate 

 to rather long, curved, with apex acute; or apex slightly bulbose, 

 somewhat stronger sclerotized; or apex flatly spatulate. Gnathos 

 with middle process more or less broad, spatulate, in some species 

 with two acute lateral processes, one on each side of middle tip; arms 

 of gnathos continued caudoventrad as more or less long, lateral 

 appendices, densely clothed with setae at least in apical portions; 

 socii more or less elongate, slightly dilated apically. Fultura superior 

 shaped as a transverse, weakly sclerotized bar; fultura inferior broad, 

 shield-shaped; caulis short. Aedeagus moderately long, more or 

 less bent, strongly sclerotized, variously shaped; an elongate, stronger 

 sclerotized carina penis, located laterally, dorso-apicad of caulis; 

 vesica without armature. 



Female genitalia: Papillae anales elongate, rather broad; apophyses 

 posteriores about three times as long as apophyses anteriores. Two 

 large, erectile sacs (?osmeteria), one on each side of postsegmental 

 membrane of eighth segment. Ostium bursae very wide, located just 

 caudad of seventh segment. Antrum broad, shghtly infundibuliform, 

 dilated caudally, receiving ductus seminalis cephahcally; corpus 

 bursae elongate, in some species stronger sclerotized caudally; signum 

 shaped as an elongate, more or less broad, sclerotized plate. 



Remarks: As already mentioned, Meyrick placed some of the mem- 

 bers of this new genus in the genus Meritastis Meyrick because of a 

 rather similar wing venation. A close examination, however, 

 shows that the veins E.4 and R5 of the forewing, as well as M3 and Cui, 

 are approximated closely to each other in Meritastis and more widely 

 spaced in the new genus; the ocellus is present in Meritastis, but 

 lacking in the new genus; the labial palpus is strongly bent in the 

 latter, with terminal segment somewhat shorter than in Meritastis. 

 The genitalia are quite distinct in the two genera: those of the genus 

 Meritastis have the general appearance of genitalia in the tribe 

 Archipini, and differ from them only in having the under surface of 



