22 GELASMA; OENOSPILA. By L. B. Prout. 



20. Genixs : <jrelasnia Warr. 



Palpus moderate, tliird joint in ? sometimes long. Antenna in cJ pectinate, in 9 nearly simple. Hind- 

 tibia ill (^ dilated, with hair-pencil. Abdomen not crested. Forewing with first subcostal usually free, first 

 median not stalked. Hindwing elbowed or usually tailed (sometimes strongly) at end of third radial, second 

 subcostal stalked, first median shortly stalked. Of the early stages we have as yet no information. The genus 

 is chiefly Indo-Australian, and does not reach Europe. 



glaucaria. G. glaucaria Walk. (2 c). Grey-green, rather thinly scaled, the colour composed of dense irroration 



of greyish ohve on a whitish ground. An irregularly bent, elongate cell-spot on each wing, two hnes on forewing 

 and one on hindwing, all produced by a thickening of the darker scales ; the postmedian line accompanied distally 

 by a vague pale line. Underside almost white, somewhat opalescent. Northern India and Tibet. 



flagellaria. G. flagellaria Poll). (= flagellata Pouj. i. tab. = albistrigata Warr.) (3 a). is slightly greener than the 



preceding, both on the upperside and on the forewing beneath, the markings on an average even weaker, 

 the cell-mark less bent. Otherwise the two are extremely similar. Central and western China. 



ambigua. G. ambigua Btlr. (2 c) is still somewhat more green in colour, the darker markings consequently ob- 



literated. The white postmedian line on both wings is finer, and more strongly dentate. In addition the hind- 

 wing is somewhat more elongate, and the (J antennal pectinations are longer. Japan, in July. 



Ulituratu. G. illiturata Walk. (2 d) and the species which follow may be distinguished from the preceding ones 



by the longer, sharper tail of the hindwing, and have, on that account, sometimes been treated as forming a 

 separate genus, Thalerura. The present species is of a dull green, about as ambigua, both wings with a very 

 slightly darker cell-mark and a strongly dentate postmedian wliite hne, no dark marginal line. Under surface 

 whitish, unmarked. Perhaps a form of the Indian dissinmlata. Described from Shanghai, also occurs in Japan 

 (common at Yoshino, end of Jvme and early July) and Korea. 



protrusa. G. protrusa Btlr. (2d) is perhaps of a sHghtly brighter green colour than the preceding, of wliich, how- 



ever, I have seen no really fresh specimens. Its size is somewhat smaller than that of illiturata, its imder sur- 

 face more tinged with green (particularly on the forewing), but it is best distinguished by having a blackish 

 marginal line, interrupted at the ends of the veins. Distributed in Japan, and occurs also in Amurland. 



f/randi- G. grandificaria Graes. (= colataria Leech) (2 d) is again similar to the two preceding species, especially 



fi/;uriri. ^^ protrusa, which it resembles in having the dark marginal line. Leech separated it from the last-named by 

 its chequered fringes, and these are very noticeable, but as those of pi'otrusa are also very faintly chequered this 

 is not the best distinctive character, protrusa, besides being generally smaller, has in the (J shorter antennal 

 pectinations and in both sexes longer palpi, grandificaria is found in Amurland and Japan and is distributed 

 right across China from Ningpo to Mou-pin. As I have not seen Amvirland specimens, it is just possible that 

 I am uniting two different species, but Graeser's excellent description quite agrees •ndth colataria. The Japanese 

 specimens which I have seen were taken in June and August. 



.suhynacu- G. submacularia Leech. Shape about as in protrusa, the distal margin of the forewing being straight. 



tana. Larger than that species, colour a very dull grey-green, dark marginal line more continuous, under surface 

 marked with a large dark patch at anal angle of forewing and another at apex of hindwing. Antennal pecti- 

 nations in the i^ much shorter than in protrusa. West China: Mou-iDin and Omei-shan, in June. 



21. Genus : CCiiospila Stoinh. 



A small Indo-Australian genus, distinct from Gelasma chiefly in the hindtibia of the 3*, which is greatly 

 thickened and lacks the terminal spurs, the proximal pair being very unequal. The coloration is bright green, 

 very distinct from the dull gi'eyish or glaucous shades of Gelasma. 



strix. (E. strix Btlr. (2 c). Bright green with the costal edge of the forewing snow-white, the hnes indicated 



by reddish dots or dashes on the veins, a row of reddish spots at base of fringe and on the hindwing a rather 

 large blackish blotch on the inner margin, which distinguishes it from flavifusata Walk., the type of the genus. 

 Hindwing elbowed at the end of third radial. Underside very pale green, unmarked, fringe as above. First 

 described from Dharmsala. Just enters the Palearctic Region in Kashmir. Occurs also in Assam. 



