1897.] Indo- and Austro-Malayan Regions. 571 



nervule strongly outwardly oblique ; middle disco-cellular long, strongly 

 inwardly oblique ; lower disco-cellular short, upright ; lower discoidal ner- 

 vule arising much nearer to the third median than to the upper discoidal 

 nervule ; third median nervule arising at the lower end of the cell ; 

 second median arising well before the lower end of the cell ; first median 

 arising about twice as far from the second as the second does from the 

 third ; sub median nervure straight ; secondary sexual character consists of 

 an indistinct oblique discal streak of black modified scales arising 

 about the middle of the submedian nervure and ending on the third 

 median nervule near its origin, thus crossing three interspaces. Hind- 

 wing, considerably longer than broad ; costa well arched throughout ; 

 apex rounded ; outer margin rounded; anal angle rather acute; abdominal 

 margin slightly convex ; costal nervure slightly curved only, ending at 

 the apex of the wing ; first subcostal nervule arising well before the 

 upper end of the cell ; second subcostal arising at the end of the cell ; 

 disco- cellular nervules straight, outwardly oblique ; discoidal nervule 

 wanting ; third median nervule arising at the lower end of the cell ; 

 second median arising just before its end ; first median arising about 

 twice as far from the second as the second does from the third — all 

 the median nervules arising close to the lower end of the cell ; sub- 

 median and internal nervures straight. Antenna long, more than half 

 but less than two-thirds as long as the costa of the forewing, with an 

 elongated, well-formed club, the terminal crook (which is at right-angles 

 to the shaft) about as long as the broadest part of the club. Palpi 

 wanting. Thorax moderately stout. Abdomen slender, reaching a 

 little beyond the outer margin of the hindwing. Legs, foreleg, tibia 

 with an epiphysis ; hindleg, tibia with terminal and medial pairs of 

 spurs. Type, Inessa ilion, de Niceville. 



This genus would appear to come near to Isoteinon, Felder, Idmon, 

 de Niceville, Arnetta, Watson, Itys, de Niceville, Zographetus, Watson, 

 and Isma, Distant,* but the loss of the palpi in the type makes it 

 difficult to exactly locate it ; the secondary sexual character will distin- 

 guish it from them all however. 



25. Inessa ilion, n. sp., Plate IV, Fig. 33, d 1 . 



Habitat : Lombok. 



Expanse : cJ, 13 inches. 



Description : Male. Upperside, both wings shining fuscous, in 



* Mr. Osbert Salviu writes to me that the unique type of the genus Isma 

 (olscura, Distant), "Has a small tuft of hair on the upperside of the hindwing 

 placed on the subcostal nervure along the upper edge of the discoidal cell ; on the 

 underside of the forewing near the middle of the inner margin in another tuft ; the 

 anal angle of the hindwing is very distinctly fringed as in the genus Lophoides, 

 Watson." 



