GELASMA. By L. B. Prout. 
95 
tennal pectinations show that it cannot belong to inaptaria. Underside nearly as in submacularia , sometimes 
with the blotches still more reduced (variable). The slightly less broad wings, as compared with the last-named 
suggest that it may be a third species. Khasis, the type in my collection; also from Sikkim. 
G. korintjiensis sp. n. (12 e). Closely like an overgrown adaptaria, antennal pectinations longer (nearer l.orinljie,,- 
to those of inaptaria). Forewing apex more acutely produced, ground-colour deeper green, costal edge and 
fringe deeper huff, lines almost obsolete except on the veins and at hindmargin, the more olive-green bands 
which accompany them in the central area more noticeable. Hindwing with the tail rather elongate; markings 
corresponding to those of forewing. Underside as in adaptaria. North Korintji Valley, S. W. Sumatra, 5000 feet. 
September-October 1921, 2 dU i n coll. Joicey. 
G. subtaminata sp. n. 34 -35 mm. Smaller than submacularia, of which I at first supposed it a sub xubtamina- 
species, with the blotches beneath small. Apex of forewing and tail of hindwing less produced (shape about 
as in dissimulata, size scarcely larger, terminal line and fringes nearly as in inaptaria and submacularia, but 
with the fringe of the forewing suffused with grey. Hainan: Youboi, June 1904 (type $) and Porten, July 1904 
(paratype d), both in Mus. Tring. 
G. dissimulata Walk. (= marginata Warr.). A rather small species, easy to distinguish from the four dissimulata. 
preceding by the absence of dark terminal line above and of dark blotches beneath and by the grey (not buff) 
fringes. Antennal pectinations about as in adaptaria ; tail of hindwing not quite so long. Moulmein (type), 
Bhutan (type of marginata ) and Sikkim, scarce. —Larva, according to Moore, onTerminalia catappa. - nigrifrons nigrifrons. 
Hmpsn. is apparently only a dark form of dissimulata from Ceylon. The typical Ceylon form is, in addition, 
smaller, but I have seen a few Ceylon specimens, besides one from Merkara which I refer to the same race, 
which agree with dissimulata in size. 
G. insignipecten Prout (11 f). Less dark grey-green than inaptaria, dissimulata, etc., the distal margin insigni- 
of the fore wing in the d slightly more curved. Fringe and underside nearly as in marginata, from which it is 
easily distinguished by the much longer antennal pectinations of the d> which are fully as long as those of in¬ 
aptaria. Similar, except in the longer pectinations, to the Japanese illiturata (Vol. 4, p. 22, Taf. 2 d), but rather 
lighter and smoother-looking, with darker fringes. Fairly common in the Khasis. 
G. versicauda Prout (11 g). Grey-green, as dark as inaptaria, but more uniform, without the darker versicauda. 
borders. Antennal pectinations long, but not so extreme as in insignipecten-, tail of hindwing long, the distal 
margin between this and the anal angle straighter (less concave) than in the allies. Formosa. 
G. auspicata Prout. $ unknown, d near that of veninotata, less narrow-winged, distal margin of fore- auspicata. 
wing faintly convex, hindwing with the tail less long; terminal line dark red (in the allies black), fringe strongly 
spotted with red. Dark borders beneath incomplete (about as in submacularia), but tinged with reddish. Khasis 
(type) and Sikkim. 
G. nigrifrons Hmpsn. (12 e). Smaller than the two following, the shape not quite so extreme. Further nigrifrons. 
distinguished from acutissima (the only Ceylon species with which it could be confused) by its less dark 
colouring and in particular by its fringes, which are suffused with greyish or fuscous. Ceylon. 
G. veninotata Warr. (11 f). This species and the following, to which Hampson has sunk it, seem to be quite veninotata. 
distinct; indeed I believe there are still other species waiting to be separated in this difficult group. In venino¬ 
tata d the distal margin of the forewing is still more oblique than in acutissima, a fine blackish terminal line 
(or dashes) always well developed, the white lines are waved, and more or less broken into vein-spots, the dark 
markings beneath vary, but are never very strong, usually very small, in a few Khasi specimens entirely want¬ 
ing. Distributed in N. India. 
G. acutissima Walk. (12 e). Somewhat larger and less narrow-winged than veninotata, deeper green, acutissima. 
the antennal pectinations slightly longer, the terminal line white, not black, the fringe brighter yellow; under¬ 
side immaculate, except for a small blackish dot in apex of fore wing. Ceylon. 
G. goniaria Feld. (= aculeata Hmpsn.) (12 e), which is widely distributed in India, differs from the goniaria. 
two preceding in having the fine white postmedian line equally developed throughout, on the hindwing nearly 
straight, the face redder, the fringe at apex of forewing and at tail of hindwing mixed with reddish; underside 
as in acutissima. Pectinations about as in acutissima. — perplexata form. nov. (? sp. n.) has the white lines finer perplexata. 
and fainter, but not broken, nor with the post median of the forewing accentuated at its hinder end as in veni¬ 
notata and acutissima-, and combines nearly the colouring and strong terminal line of veninotata with shape 
and immaculate underside of goniaria. Hainan: Cheng-Mai, July 1902, type J and 2 Mt. Wuchi, May 1903, 
1 $; all in the Tring Museum. 
G. subannulata Prout. Larger than the acutissima group (38 mm), apex of forewing not produced, tail subannu- 
of hindwing moderate; lighter and more translucent green, in some lights a little iridescent; cell-marks enlarged 
