220 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1890. 



Genus CTENOPTILUM, nov. 

 Forewing, narrow, elongated ; costo arched at base, then straight 

 to apex ; apex acute ; outer margin at right angles to costa from apex 

 to termination of third median nervule, this portion also being 

 slightly excavated, from third median nervule to inner angle strongly 

 inwardly oblique, also slightly concave ; inner angle rather acute ; 

 inner Margin sinuous; costal nervure very short, not nearly reaching 

 opposite to the apex of the discoidal cell.; first, second, and third sub- 

 costal nerruks also very short, rapidly reaching the costa, fourth sub- 

 costal long, extending to apex of wing, the bases of all the subcostals 

 nearly equi-distant ; terminal portion of subcostal nervure reaching 

 outer margin below apex of wing ; discoidal cell long, narrow, reach- 

 ing to more than half though less than two-thirds the length of the 

 wing ; upper disco-cellular nervule short, straight, outwardly oblique ; 

 middle and lower disco- cellulars straight, slightly inwardly oblique, 

 the lower a little longer than the middle ; second median nervule aris- 

 ing considerably before the lower end of the cell; first median arising 

 much nearer to the base of the wing than to the lower end of the 

 cell ; submedian nervure sinuous, following the outline of the inner 

 margin ; internal nervure short, running into the submedian nervure 

 as usual. Hindwing, with the base of the costa much produced, 

 thence gently curving to apex ; outer margin slightly produced tooth- 

 like at apex of first subcostal nervule, very strongly at third median 

 nervule, thence inwardly oblique to anal angle and slightly concave; 

 anal angle rounded ; inner margin nearly straight ; costal nervure 

 curved, reaching the apex of the wing ; first subcostal nervule origi- 

 nating long before the apex of the discoidal cell ; disco-cellular 

 nervules of equal length, almost straight, slightly outwardly oblique ; 

 discoidal nervule fine but quite distinct ; second median nervule given 

 off close to the lower end of the cell ; first median arising nearer to 

 lower end of the cell than to the base of the wing ; submedian and 

 internal nervitrcs almost straight. Antenna about half as long as the 

 costa of the forewing, with a well- formed club ; thorax rather stout ; 

 abdomen rather slender, not quite reaching to anal angle of hindwing. 

 Male with no secondary sexual characters on the wings, but with a 

 dense tuft of hairs attached to the anterior end of the tibia of the 

 hind legs, the hairs extending to the apex of the first joint of 



