Genera and Species o/Tyralidse. 103 



Genus Gadessa, Moore. 



Gadessal subalhalis^ sp. n. 



Fore wings dull brown, with an indistinct dark basal line 

 and a curved sinuous exterior line blackish, from three fourths 

 of costa to beyond middle of inner margin, at first straight 

 and oblique, distinct, describing a small sinus across the 

 median nervules, running in to nearly beneath the disco- 

 cellular, and then turning at right angles to the inner 

 margin; discal spot large, blackish; fringes darker brown, 

 with a fine paler line along their base, preceded by a narrow 

 dark marginal shade. Hind wings paler, especially towards 

 costa and inner margin ; discal spot indistinct, as is the 

 curved central line ; fringes and marginal shade darker. 

 Head, thorax, and abdomen concolorous ; anal segment with 

 a dark ring, followed by a dull whitish one, the rest dull 

 ferruginous. Underside dull whitish, with the markings 

 indistinctly darker. 



Expanse of wings 32 millim. 



Two males from the Khasia Hills. 



Distinguished by the elongated fore wings with very oblique 

 hind margin, and by the whitish underside. 



Gadessa characteristica, sp. n. 



Fore wings pale straw-colour, suffused with yellowish and 

 fuscous ; the costa, base, and inner margin tinged with yellow ; 

 the hind margin fuscous, fading into yellow internally; a 

 black spot at base of costa and a small rusty one near base of 

 inner margin ; first line at one fourth, blackish, oblique out- 

 wards, thicker near costa, followed closely by a small black 

 dot in the cell ; discal mark brown-black, 8-shaped ; second 

 line at three fourths, thick and black at the costa, running 

 straight for the anal angle as far as the lower radial, then 

 forming three symmetrical rounded teeth in a shallow sinus 

 outwardly, curving in along the first median to nearly beneath 

 the discocellular, then with an inward curve to inner margin 

 in middle ; fringe pale straw-colour, with a deep black basal 

 line between two pale ones. Hind wings with the second 

 line more angular, the sinus straight, without teeth, and the 

 inner angle acute and touching the dark cell-spot. Head, 

 thorax, and abdomen shining straw-colour ; abdomen with 

 a black spot at base of last segment. Underside duller. 



Expanse of wings 24-:26 miUim. 



{Several from the Khasias. 



