138 Mr. W. Warren on new 



ring at base; palpi, top of face, and two dots at bottom 

 brown ; apex of palpi and centre of face whitish. Underside 

 of both wings whitish, reticulated only with brown ; legs 

 white, mottled with brown. 



Expanse of wings 36 millim. 



One female from Queensland. 



At first sight the insect reminds one somewhat of certain 

 species of Thyrididse. The length of the antenna? and the 

 unusual character of the ornamentation will easily distinguish 

 it. It does not appear to be nearly related to any known 

 species. 



RADIORISTA, gen. nov. 



Fore wings narrow, elongate ; costa straight, slightly 

 incurved beyond middle ; apex rounded ; hind margin oblique, 

 slightly curved. Hind wings broad, with both angles and 

 the hind margin rounded. Fore wings of male with the 

 costa at base strongly folded over and containing a tuft of 

 hairs beneath from base. Head hairy above ; antenna? of 

 male with basal joint much swollen, the shaft slight, ex- 

 curved at base, containing three or four long sharp spikes, 

 then lamellate, thick ; labial palpi stout, upcurved, terminal 

 joint small ; maxillary palpi slender, erect; forehead slightly 

 bulging, rounded ; tongue greatly developed j ocelli present, 

 large. 



Type Radiorista venosa, Butler (Heterocnephes) . 



The examples of this insect hitherto known were all 

 females. 



Genus Cyclarcha, Swinh. 

 Cyclarcha pallidtcostah's, sp. n. 



Fore wings pale straw-colour, suffused with dull smoky 

 grey, with all the veins beyond the middle dark fuscous grey ; 

 costa at base narrowly pale, with a large semioval patch before 

 middle, the space before, beyond, and below which is diffusely 

 grey; hind margin grey; costa before apex paler, and a 

 narrow pale space immediately before the dark basal line of 

 fringes ; fringes themselves lustrous grey. Hind wings dull 

 smoky grey, with hind margin and fringes as in fore wings ; 

 no distinct lines on either wing. Head, thorax, and abdomen 

 grey ; face and vertex paler. Underside pale straw-colour, 

 with a darker cloud from costa beyond middle of the fore 

 wings. 



Expanse of wings 18 millim. 



One male, Khasia Hills. 





