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120 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iit 



tergite produced into a long process with obtuse end, directed dorsally, 

 almost at right angles to the axis of the body. 



Forewing 8.5 mm. in length; costal area very broad, most abruptly 

 broadened at base; apex narrowly rounded. Membrane hyahne with 

 partially confluent pale gray maculations and alternate blackish and 

 whitish short streaks along margin; blackish streak over several 

 apical crossveins of outer gradate series; Hghter colored streaks over 

 anterior half of inner gradate series; bases of radial branches marked 

 with blackish spots; a black spot over outermost crossvein m-cu; 

 another black mark over first fork of Cui and the crossvein just 

 behind it. A narrow hyahne-white area from hindmargin inward at 

 cubitoanal junction, bordered with a blackish streak on outer side. 

 Venation pale, whitish, spotted and streaked with blackish at sites 

 corresponding to the maculations of membrane. Six branches to 

 radius, first branch forked twice before inner gradates; two subcostal 

 crossveins before stigmatic area; three crossveins between radial 

 branches near their bases; media dichotomously forked twice before 

 inner gradates; Cui with five branches before outer gradates; Cua 

 forked near base. Basal gradate series of 5 crossveins, inner gradate 

 series of 12 crossveins between radius and cubitus; outer gradates of 

 16 crossveins reaching Cui; a series of 6 crossveins from Cui to hind- 

 margin of the wing. 



Hindwing membrane hyahne, tinged with gray in area behind 

 cubital fork and about apex of wing; a few dark dots on apical margin; 

 several apical crossveins of outer gradate series marked with gray. 

 Venation mostly pale but darkened in areas where membrane is 

 grajdsh; pterostigmatic area dark. Five branches to radius; discal 

 (inner) gradates of three crossveins; outer gradates of nine crossveins. 

 Male genitaha: Anal plate very narrow, with no spinous projection, 

 produced into an oblong apical, posteriorly bent lobe. Ninth sternite 

 short, posterior margin not reaching apex of anal plate. Tenth 

 sternite produced into large dorsolateral wings, with very short bridge 

 of gonarcus arch between (which imposes on the "wings" far more 

 dorsal positions than usual for the family) ; epimeres fused into dorsal 

 border of "wings"; aedeagus paired, each lobe very slender, fused at 

 base without showing recognizable phallobase; a pan- of long and 

 slender processes below aedeagus, superposed by processes of the 

 latter. (These hypoaedeagal processes may be termed hypomeres.) 

 Parameres fused, presenting a long subquadrate shape in dorsal 

 view, produced sharply at corners and with distal prolongation ending 

 in an apically bipartite head with lateral lobes. In lateral view, the 

 lateroanterior angle appears as an obtuse ventral prolongation, and 

 the distal "head" presents the shape of a large pomted process which 

 is recurved over the narrow neck. 



