( K'fi ) 



Helicopag'e gpn. nov. 



Fvi-i-(i'inijs: amijle; cosla slrouglv loundod at base, tlieii sliaiglit and I'aiiitlv 

 convex before apex; apex blunt, rectangular; liindmargin crennlalc lliroughout, the 

 upper half vertical, the lower oblique. 



Hiiulwings: with hindmargin deeply crenulate ; a longer tooth at end of third 

 median and a slightly deeper indentation above it opposite the cell ; anal angle 

 squared; abdomen long, without tufts; antennae of c? bipectinatcd, the pectinations 

 thickened towards apex and pubescent. 



Palpi long, porrect, the second joint reaching well in front of face, tliiid more 

 slender, half as long as second; tongue present ; hind tibiae slender, with four spurs, 

 and a thin pencil of hairs on the inner .side; frenulum very fine, working in a spiral 

 hair-covered retinaculum, which springs from the extreme base of forewin" and is 

 not attached to the wing bevond. 



Neuration: forewings, cell nearly half as long as wing; discocclbiliir with 

 short upper arm oblique inwards, the longer lower arm oblique outwards ; first median 

 at three-fifths, second close before end, third from end of ceil ; lower radial from 

 angle of discocellular, upper from iielow upper angle; last four subcostals stalked 

 from the angle, first anastomosing with costal. Hindwings with the medians as in 

 forewings ; the two subcostals from upper angle of cell ; radial from just below it 

 and above the angulation of discocellulars. 



TvjJe : Helicoparje hiru)nlinfdis sj). nov. 



Distinguished from all other genera, as far as I know, by the unusual cliaracter 

 of the retinaculum. 



13. Helicopage hirundinalis sp. nov. 



Foreivinrjs : pale green, with darker greyish green mottlings and m.arkings, tJio 

 mottlings confined to the basal area and fir.st half of costa ; basal i)atch edged with 

 a thick grey-green blotch, angulated outwardly, with some blackish scales in the 

 middle; a grey-green discal blotch ; a double irregular series of grev-green lunules, 

 oblique outwards above the median, inwards below it; the three lunules above the 

 median each contain a black sagittate mark, much resembling a swallow on the 

 wing; marginal area with a broad grey-green fa.scia from apex to middle, broken into 

 lunules below the middle ; extreme hindmargin pale green ; fringe i)inkish white ; 

 costa yellowish, with innumerable small brown mottlings. 



Hindwings: with grey-green basal blotch and discal sjK.t, followed by three 

 irregular sinuous bands of lunular spots, the submarginal above the anal angle being 

 the most conspicuous ; fringe as in forewings. 



Head, thorax, and abdomen concolorous green; palpi externally and antennae 

 fuscous; lower part of face whitish. Underside pale fiidod green, with the bands of 

 lunules dull gilded; the costa of forewings with many irregular blackish blotches, 

 of which the apical is the largest. 



Kxpan.se of wings : ,50 mm. 



A few examples from the Khasias. 



1 1. Hemithea (?j auomala «ii. nov. 

 6 ?. Wings apple-green. 

 Forewings: with costa narrowly ochreous yellow; a curved slightly wavy first 



