372 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. IX. 



discoidal cell than it does in K. hector , Watson, the type of the genus, 

 and the lower disco- cellular nervule is upright instead of inwardly- 

 oblique ; in the hindwing also the second median nervule arises nearer 

 to the end of the cell; the disco- cellular nervules of Suada are 

 outwardly oblique, in Koruihaialos they are upright. 



(1.) SUADA SWERGA, de Niceville. 



Eesperia ? swerga, de Niceville, Journ. A. S. B., vol. Hi, pt. 2, p. 89, n. 38, pi. s, fig. 

 12, male (1883) ; Suastus swerga, Elwes, Trans. Ent. Soc. Lond., 1888, p. 450, n. 475 ; 

 Suastus mollerii, Moore, I.e., vol, liii, p. 49 (1884). 



Habitat : Sikkim ; Tenasserim (Beeling, Ataran Valley, Daunat 

 Range) ; Malay Peninsula (Perak) ; N.-E. Sumatra ; Java. 



38. SUASTUS ROBSONII, n. sp., PI. Q, Fig. 50, $. 



Habitat : Masuri, Western Himalayas. 



Expanse : #, 1*45 inches. 



Description : Male. Upperside, both wings shining dark hair- 

 brown. Cilia cinereous. Forewing with a very minute hyaline 

 white spot in the middle of the outer end of the discoid al cell. 

 Hindwing rather paler on the disc than elsewhere owing to 

 the presence of some long dull ochreous hair-like scales. Underside, 

 both wings paler than above. Forewing with the inner half of 

 the wing dark hair-brown as on the upperside ; the cell spot as 

 above ; a pale streak in the middle of the submedian interspace. 

 Hindwing (as seen under a strong magnifying glass) overlaid through- 

 out with dull ochreous scales ; an elongated minute black spot at the 

 end of the cell. Abdomen dark brown above, beneath each segment 

 is ringed with whitish. 



Nearest to Suastus minuta, Moore, from Ceylon, from which it 

 differs in the cilia of the hindwing being less pure white, and on the 

 underside in having the hindwing practically unmarked, S. minuta 

 having its posterior two-thirds pure white, bearing three prominent 

 dark brown spots. In Captain E. Y. Watson's revision of the genera 

 of the Hesperiidce in Proc. Zool. Soc. Lond., 1893, p. 76, there 

 is a misprint bracketing S. minuta with Suada swerga, de Niceville 

 ( = S. molleriiy Moore), but the two species are abundantly distinct 

 and are given separate numbers. B. swerga, has a much wider range 



