1893.] SPECIES OP MOTHS FEOM INDIA. 377 



through the basal patch ; the middle of the hind margin is generally 

 paler, thus separating the dark suffusion at the apex from that 

 at the anal angle ; fringes smoky fuscous, somewhat reddish 

 tinged towards the anal angle. Hmd flings entirely dark smoky 

 fuscous. Head, thorax, and abdomen dark fuscous. Underside 

 dull grey flith some indistinctly waved shades. 



Expanse of flings 24 millim. 



Hah. Sikkim; Naga Hills. 



This is a very indistinct looking and yet variable insect. Some- 

 times the suffusion onlj^ extends to the costal portion, leaving the 

 inner margin of the fling pale ; in others it embraces the greater 

 part of the fling. 



Perizoma, Hiib. Verz. p. 327. 



Emvielesia, Stph. lU. iii. p. 297. 

 Type, P. alhulata. 



Peeizoma vabiabilis, sp. n. (Plate XXX. fig. 17.) 



Fore flings gi-eyish fuscous, with very indistinct ti'ansverse 

 markings ; basal patch darker, divided in the middle by a paler 

 band, fliaich is itself traversed by a thread-like line ; and followed 

 by a similar pale band separating it from the central fascia, fl'hich 

 varies in flidth, and is also follofl^ed by a pale band like the other 

 tfl-Q ; marginal area irregularly darker, in fl^hich can be traced an 

 indistinct submarginal line formed by a series of more or less 

 distinct white dots or spots ; sometimes 3 or 4 in a line from the 

 costa, and 2 or 3 above the anal angle, but alfl'ays one more clearly 

 marked, in the middle, ruuning in towards the base, and wedge- 

 shaped ; fringes unicolorous ; the outline of the basal patch and 

 central fascia varies, being sometimes curved, bluntly angulated, 

 or acutely angulated ; a distinct black cell-spot. In one varietal 

 form the pale bands are decidedly greenish and more lustrous ; 

 in a second, the costal space beyond the central fascia is dull 

 tawny ; in a third, the submarginal spots are all distinct and the 

 central one forms a large round fl'hite space. Hind flings of all 

 the forms pearly-fliiite, flith a small dark cell-spot and a dark 

 basal fringe line, and sometimes a fuscous or grey suffusion near 

 the anal angle ; some specimens have only faint traces of a central 

 curved line, others have the line distinct. Underside of both 

 flings glossy grey, dai'ker or lighter, flith the markings of vaiying 

 intensity. Head, thorax, and abdomen fuscous ; face sometimes 

 paler. 



Expanse of wings 22-26 millim. 



Eight examples, 4 d" , 4 $ , all from Tonglo, Sikkim. This vaiiable 

 species is slightly smaller on the average than P. affiins, Moore, 

 and may be at once distinguished by the smooth glossy scaling and 

 the lustrous paler spaces, especially along the inner margin of the 

 fore flings. 



[A common species on the Nepal frontier from 10,000 to 13,000 

 feet in July.—//. J. E.] 



