LETJCOMA. 487 



Genus LEUCOMA. 



Leucoma, Steph. Ill Brit. Ent., Haust. ii, p. 64 (1829). 

 Redoa, Wlk. Cat. iv, p. 826 (1855). 

 Kanchia, Moore, Lep. Ceyl. ii, p. 92 (1883). 



Type, L. vavr-mgra, Linn., from Europe. 



Range. Palaearctic, Ethiopian, and Oriental regions; New 

 Britian ; New Ireland. 



Palpi upturned, reaching vertex of head. Antennae bipectinated 

 in both sexes, the branches longer in male than female. Hind 

 tibiae with two pairs of spurs. Fore wing with vein 3 from before 

 angle of cell ; 4 and 5 from angle ; 6 from upper angle ; 7, 8, 9 

 stalked. Hind wing with vein 3 from before angle of cell ; 5 

 from above angle ; 6 and 7 stalked or from cell. 



SECT. I. (Leucoma}. Fore wing with vein 10 from the cell. 



1110. Leucoma comma, Hutton, Trans. Ent. Soc. (3) ii, 1864, p. 330: 



C. 8. no. 1108. 

 Redoa cygna, Moore, P. Z. S. 1879, p. 401 ; C. Sf S. no. 1049. 



<$ . Pure glistening white ; irons, palpi, and coxae of fore legs 



Fig. 324. Leucoma comma, <$ . |. 



orange ; fore and mid tibiae with a black spot. Fore wing with 

 a black lunule on discocellulars ; branches of antennae brownish. 

 Hob. Dehra Dun ; Nilgiris. Exp. 42 millim. 



SECT. II. (Redoa). Fore wing with vein 10 anastomosing 

 slightly with 8 and 9 to form an areole. 



1111. Leucoma submarginata, Wlk. Cat. iv, p. 826; Butl. III. Het. 

 v, pi. 89, fig. 3 ; Moore, Lep. E. I. Co. pi. 14, figs. 11, 11 a (larva) ; 

 C. $ S. no. 1055. 



Pure white ; palpi brownish ; two brown spots on frons, and a 

 brown band between the antennae, which have the branches 

 brownish ; legs spotted with black. Fore wing irrorated with 

 silvery scales ; a black speck at end of cell ; costa ochreous towards 

 apex ; the wing-membrane slightly corrugated on outer area ; cilia 

 of both wings more or less tinged with fuscous. 



Larva pale fuscous, with long, scattered, simple, and spatulate 

 hairs; a dorsal tuft of long black hairs from the second somite; 



