APPENDIX. 535 



Genus DIDUGA. 

 Male. Forewing elongate, narrow ; costa almost straight, apex obtuse, exterior 

 margin slightly oblique and straight ; cell long, three-fourths the length ; first sub- 

 costal at two-fifths before end of cell, second at one-sixth, third from end of cell, 

 trifid ; discocellular bent near the ends, radials from the angles ; middle median 

 very close to end of cell, lower at three-fifths before the end ; submedian slightly 

 recurved : hindwing rather long and narrow, apex produced ; cell two-thirds tlie 

 length ; two subcostals at one-third beyond the cell ; discocellular bent in the middle, 

 radial from the angle ; middle median at nearly one-third before end of cell, lower 

 from near the base. Body short, moderately stout, anal tuft lax ; palpi obliquely 

 porrect, very slender, rather long ; vertex flat, broad ; antennae stout, finely biciliated ; 

 legs rather long, smoothly squamous ; middle tibiee with one pair and hind tibiae with 

 two pairs of very slender unequal spurs. 



DIDUGA COSTATA (Plate 211, Fig. 8,9, <J ? ). 



Yiolaceous-grey. Male. Forewing with an ochreous-yellow costal and exterior 

 marginal band, the former undulated along its inner edge, angled at the apex and 

 belov7 the middle of the exterior margin ; an outwardly-oblique black spot on the 

 costal edge at one-third from the base and another at one-third before the apex, from 

 the latter a wavy line extends to the angle ; cilia yellow : hindwing and cilia paler 

 violaceous-grey. Thorax and tegulje in front, vertex, and base of antenna yellow ; 

 front of head, palpi, and legs violaceous-grey. 



FeinaJp. Forewing with the costal band convex and broader before the apex ; 

 costal spot absent. 



Underside. Ifale. Both wings entirely violaceous-gi-ey. Female. Forewing 

 with the apex and exterior border yellow. 



Expanse, (? f , ? f inch. 



CVylon. "Dickoya" {Green). 



Genus NAROSODES. 

 Wino-s small. Forewing moderately broad, costa arched, tips rounded, posterior 

 margin convex at the base ; cell two-thirds the length, disposed along middle of the 

 wing ; first subcostal at half before end oE cell, second at one-fourth, third from end, 

 bifid; discocellular zigzag, two radials from the angles; middle median very close to 

 end of cell, lower at two-fifths ; submedian slightly recurved: hindwing rather long, 

 triangular ; cell two-thirds the length ; costal joined to subcostal to half length ot' 

 the cell ; two subcostals on. a footstalk at half beyond the cell; discocellular slender, 

 radial from below the middle ; the middle median close to end of cell ; lower sub- 

 median and internal vein straight. Body short, slender; palpi porrect, slender, 



