Pjralidse /row the Khasia Hills. 215 



in male broad and short, with shouldered costa ; apex and 

 hind margin rounded ; inner margin largely developed. An- 

 tennae lamellate (female) ; tongue and ocelli present ; labial 

 palpi large ; second joint porrect, broad, curved beneath ; 

 third joint half as long as second, conical, erect in front of 

 face, and articulated on to second, with a clear incision be- 

 tween them externally, as in Agrotera ; maxillary palpi tine, 

 porrect. Wings with hyaline discal mark in female. 



Type Orthocona eximialis^ Warr. [Thysanodesma) . 



Akin to Agrotera. 



Since the description of Thysanodesma eximialis ? was 

 written I have met with a pair in good condition, the female 

 of which differs in certain particulars from the type formerly 

 described ; and as the male differs considerably from either, I 

 append a fuller description. 



Orthocona eximialis. 



$ . Fore wings dark brown, with a strong violet lustre ; 

 the lines obscure ; a large square white hyaline spot at end of 

 cell, preceded and followed by a black spot ; a smaller spot 

 of the same character below it beneath the median ; a yellow 

 spot on costa above it, with a smaller yellow spot nearer 

 base ; first line visible only on the inner margin, the remainder 

 lost in the dark basal patch ; second line at three fourths, 

 wavy to below middle, then incurved to touch the base of the 

 discal spot, thence to inner margin in middle ; the space 

 included dark blackish brown, except a minute pale yellowish 

 spot on median just beyond the discal spot ; marginal area 

 violet-brown ; two yellow costal spots, one before, the other 

 (larger) at apex ; marginal line dark purple, preceded by a 

 small yellow spot below apex and another above anal angle; 

 fringe pale yellow, with a purplish apical and larger middle 

 patch, these with a darker line along base. Hind wings with 

 base dark ; a central hyaline band containing the dark discal 

 spot and a thick black line from the inner margin along its 

 outer border ; marginal area violet-brown, with a faint 

 yellowish spot in the middle ; fringe yellowish at apex and 

 again before anal angle ; the rest purple. Collar purple ; 

 face and thorax much varied with pale yellowish-white scales 

 (abdomen wanting). Underside paler, more generally violet, 

 with the yellowish places larger ; both wings with a central 

 pale yellowish hyaline fascia. 



The male (of 24 millim. expanse), likewise from the 

 Khasias, differs not only in size, as above indicated, but in 

 markings, as follows : — The hyaline patches of the fore wings 



