New Geometridae from Central Geram 285 



degrees with deeper green, which forms a discal dot at the end of cell- 

 fold, faint indications of an anterior one at base of R 2 , a vague basal 

 patch reaching nearly to the antemedian, and moderately broad but 

 ill-defined bands in the median area adjoining the lines ; the lines 

 themselves very faintly indicated in whitish, rather widely separated, 

 the antemedian gently curved, the postmedian weakly lunulate-dentate, 

 a little incurved at costa, otherwise fairly direct, slightly less oblique 

 than termen ; fringe more whitish green. Hind wing rather broad, 

 the abdominal margin only moderately elongate, termen very weakly 

 bent at E 3 , M 1 very shortly stalked ; costal margin whitish ; antemedian 

 line wanting, postmedian bent at R 3 — M 1 , the rest as on fore wing. 



Fore wing beneath green, at base yellower-green costally, costal 

 edge buff, the distal area and fringe almost white. Hind wing almost 

 white, with the celldot and postmedian band greener. 



Central Ceram : Manusela, 6,000 feet, October to December, 1919. 



If the wing shape be valid as differential (as assumed by me in 

 Gen. Ins.) this cannot be placed in Gelasma, with which it agrees in 

 facies ; but it is becoming increasingly doubtful whether the present 

 classification will hold : Gelasma balteata Warr. with more crenulate 

 margins and more contrasted colouring, has much in common with it. 



11. Gelasma pervicax sp. nov. 



$ . 26 mm. 



Face green. Palpus fully 1§, third joint fully half second ; green, 

 beneath white. Vertex white ; occiput green. Antennal shaft white 

 proximally ; pectinations long and heavy, as in a Thalassodes, continued 

 to beyond two-thirds. Body above green, the abdominal segments 

 with slight white edging ; beneath white. Legs white, the fore leg 

 in part green; hind tibia with all spurs well developed, tarsus § or 

 almost f. 



Fore wing with SC 1 anastomosing with C and touching SC 2 , R 1 

 just stalked ; green, moderately opaque, costal edge narrowly vinaceous- 

 buff; a darker green celldot; lines whitish, rather deeply lunulate- 

 dentate in reverse directions, the tips of the teeth accentuated in purer 

 white ; fringe whitish blue-green. Hind wing fairly broad, termen 

 faintly waved, the tooth at R 3 not strong ; M 1 very shortly stalked ; 

 as fore wing but without first line. 



Fore wing beneath scarcely paler green, with costal edge as above, 

 and with not very sharply defined whitish distal border of about 

 2 mm. width, spreading posteriorly. Hind wing beneath whitish. 

 19 



