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53. Paroecia acupicta spec, now 



Forewing: whitish grey, covered with excessively fine brownish striatums; 

 lines brown, furry-looking ; first curved close to base, enclosing the fovea; second 

 at middle, passing over discocellnlar, and hardly marked below median ; third 

 marginal, edged inwardly by black spots between veins, inwardly angled on vein 7, 

 thinning to a point at anal angle ; fringe brown, with ferruginous base. 



Hindwing : without marginal line ; fringe as in forewing. 



Underside of forewing dull bluish grey, of hindwing bluish white, both with 

 large and small speckles. 



Head, thorax, and abdomen above grey like wings; face and palpi blackish; 

 abdomen below white. 



Expanse of wings : 18 mm. 



1 6. 



54. Platerosia albipennis spec. nov. 



Forewing: white, slightly striated with red-brown; costa with short striae; 

 markings red-brown ; some brown spots in basal area and along subcostal vein ; 

 a brown horseshoe-shaped spot at middle of inner margin, with the centre whitish ; 

 its outer edge joined by a curved and crennlate white line from costa at middle, 

 edged on each side by brown shading ; a patch of brown scaling before anal angle 

 and a less conspicuous one on costa at three-fourths indicate the snbmarginal 

 shade; a row of brown spots from below apex to below middle of outer margin, 

 confluent below vein 6 and followed by a brownish grey cloud, which runs out into 

 the white fringe ; marginal line waved, brown ; fringe mottled with brown. 



Hindwing : with a double brown outer line from costa to vein 4, there bluntly 

 angled, marked by a brown blotch between veins 3 and 2 and another on inner 

 margin ; the whole wing slightly grey-speckled, more strongly at apex ; marginal 

 line brown, fine, preceded by an interrnpted thicker snbmarginal. 



Underside white, with fine brown striae along costa and outer margin in 

 both wings. 



Face, palpi, and collar black ; vertex, thorax, and abdomen white ; the dorsum 

 with pairs of dark curved marks, sometimes confluent. 



Expanse of wings : 22 mm. 



2 <?<?. 



Family GEOMETRIDA E. 



Subfamily OENOCHROMINAE. 



Gerusia gen. nov. 



cT. Forewing : costa straight ; apex blunt ; outer margin bluntly dentate at 

 6 and 4, below 4 very oblique, the anal angle obtuse. 



Hindwing: broad; apex squarely rounded ; outer margin denticulate, bent at 

 vein 3 ; anal angle rounded. 



Antennae of 8 stoutly bipectinate to near apex ; palpi porrect, stont, heavily 

 scaled, terminal segment minute ; tongue present ; frenulum present ; hindtibiae 

 with four spurs ; foretibiae with a pencil of stiff hairs from the femoro-tibial joint 

 and a broad, blunt, curved, claw-like process from end on outer side. 



The forewing has a patch of black scales at base of submedian vein beneath, 



