650 NOCTUID^. 



di.scoidal spot; hind wing white with diffused brownish subterminal 

 shade. 



Mab. Ceylon, IFatale, 1 J type, Pundaloya {Green), 1 cj . E^q). 

 38 millim. 



7103. Pterogonia nerissa. (Plate CXCI. fig. 10.) 



Pterogonia nerissa, Swinh. A. M. N, H. (7) ix. p. 83 (1902). 



c? . Head and thorax dark brown mixed with grej% the ontcr 

 part of tegulse and patagia reddish brown; pectus and legs whitish 

 mixed with brown, the tarsi blackish ringed with white ; abdomen 

 grey-brown, ventrally whitish except towards extremity. Fore 

 wing red-brown with an olive tinge irrorated with a few black 

 scales, which on inner area are whitish tipped with black, numerous 

 slight silvery grey striae more prominent at costa where there are 

 brown striae between them ; traces of a curved minutely waved 

 dark antemedial line ; small blackish spots at the angles of cell ; 

 an oblique silvery white streak from apex to vein 5 with brown 

 striae on it ; slight subterminal black spots above vein 6 and 

 between veins 5 and 1 ; some silvery white marks striated with 

 brown on termen from apex to vein 5 ; cilia dark red-brown at 

 tips. Hind wing dark brown, the cilia white at tips from apex to 

 vein 2 ; the underside with the costal area whitish to beyond 

 middle, the inner area greyish. 



Hah. Straits Settlements, Perak, 1 S type ; Bokneo, Matang 

 {Shelford), 1 d • ^i^J)- 40 millim. 



Genus SETOCTENA. 



Type. 



Setoctena, WUgni. Wien. Ent. Mon. vii. p. 144 (1863) ledereri. 



Metactilasta, Butl. P. Z. S. 1898, p. 44-i dives. 



Proboscis fully developed ; palpi upturned, the 2nd joint reaching to middle 

 of frous and slenderly scaled, the 3rd moderate; frons smooth; eyes large, 

 round ; antennte of male with fusciculate cilia ; thorax clothed almost entirely 

 with scales and without crests ; tibiae slightly fringed with hair ; abdomen 

 without crests. Fore wing long and narrow, the costa nearly straight, the 

 apex somewhat produced, the termen obliquely curved ; veins 3 and 5 from 

 near angle of cell; 6 from upper angle; 9 Irom 10 anastomosing witli 8 to 

 form the areole ; 11 from cell. Hind wing with veins 3 and 5 from near angle 

 of cell ; 6, 7 from upper angle ; 8 anastomosing with the cell to beyond 

 middle. 



A. Fore wing with the postmedial line arising from apex. 



a. Fore wing striated with fuscous dives. 



h. Fore wing not striated with fuscous trigramma. 



B. Fore wing with the postmedial line acutely angled outwards 



below vein 7 where it is met by an oblique dark streak 

 from apex. 



a. Fore wing rufous with numerous pale striae pairicida. 



6. Fore wing yellowish streaked with rufous cndoglama. 



G. Fore wing with the postmedial line excurved below costa... ledereri. 

 D. Fore wing with medial band defined by the slight waved 



dark ante- and postmedial lines polla. 



