ON NEW AND LITTLE-KNOWN BUTTERFLIES. 399 



47. GEHENNA GR^LE, n. sp., PI. Q, Fig. 59, $. . 

 Habitat : N.-E. Sumatra. 

 Expanse : $, 1*4 inches. 



Desceiption : Male. Uppeeside, loth wings shining dark reddish- 

 brown. Foreioing with five semi-transparent ochreous spots, two 

 placed inwardly obliquely at the end of the discoidal cell, the upper 

 small and round, the lower three times as large as the upper and linear, a 

 small round subapical one placed in the subcostal interspace, a rounded 

 one of about the same size as the posterior spot in the cell towards 

 the base of the second median interspace, a triangular one, the largest 

 of all, with its base against the base of the second median nervule, its 

 apex against the submedian nervure in the first median interspace. 

 Hindwing immaculate. UndeesidEj both wings as above, but the costa 

 and apex widely of the forewing, and the whole of the hindwing frosted 

 over with scattered golden-yellow scales. Foreioing with the hyaline 

 spots as above ; the sexual tuft of hairs at the base of the inner 

 margin turned under and forwards black. Hindwing immaculate. Cilia 

 of the forewing concolorous with the wings ; of the hindwing paler, 

 dusky ochreous. Antennce black ; the club beneath, all except the 

 whip-like termination, ochreous- white. Head, palpi, thorax, and 

 abdomen above dark reddish-brown ; beneath and legs greenish- 

 ochreous. 



Near to " Hesperia " abima, Hewitson,* from Macassar in Celebes, 

 but that species appears to have a single deeply sinuated spot instead 

 of two in the discoidal cell of the forewing, and both wings 

 are much clothed with ochreous hair. On the underside of the 

 hindwing in G. abima there are five undefined brown spots, in 

 G. grcece that wing is immaculate. 



Described from a single example captured by Hofrath Dr. L. Martin 

 himself in the virgin forest at Namoe Oekor, N.-E. Sumatra, on 23rd 

 January, 1893. 



Genus ITON, nov. 



Male. Foeewing, triangular ; costa nearly straight, slightly arched 

 at the base ; apex acute ; outer margin convex at apex, then straight ; 

 inner angle rounded ; inner margin straight, of the same length 

 * Ann. and Mag. of Nat. Hist., fourth series, vol. six, p. 83 (1877). 



