( 453 ) 



Expanse of wings : 44 mm. 



Two ? ?, one much darker than the other; the paler one from the P'elder 

 collection without locality, the darker examjile from Corcovado. 



Phyllodonta informis sp. nov. 



Wings fawn colour, slightly ochreous tinged, and dusted .sparsely with black 

 atoms; an indistinct dark basal line; an equally indi.stinct curved central shade, 

 passing over a minute black cell .spot ; exterior line angulated below the co.sta, 

 starting from a dark brown oblique costal spot, and after the angulation running 

 straight to the inner margin before the anal angle, indicated in the main by black 

 points on the veins ; costa with some dark fuscous strigae, and a small dark cluster 

 on the hindmargin above the indentation. Hindwings paler, with a broadish mixed 

 tawny and pale central shade, and an indistinctly denticulated tawny submarginal 

 line. Head, thorax, and abdomen concolorous. Underside paler, with the markings 

 equally indistinct ; the exterior lines in both wings marked by black points on the 

 veins ; hindwings with an oval reddish brown blotch near the middle of the inner 

 margin. 



Expanse of wings : 36 mm. 



One c? from Tijnco. Differs from the other species by the shallow blunt 

 incision in both wings. 



Rhomboptila gen. nov. 



Forewings elongate; costa uniformly arched from base to apex, which is bluntly 

 rectangular ; hindmargin for nearly half the width of wing running straight and 

 slightly outwards, where it forms a more or less prominent protuberance, varying 

 from a mere elbow to a decided tooth, according to the species, then incurved to the 

 anal angle, either plainly or slightly or very deeply crenulate. Hindwings kite 

 shaped, with a more or less prominent projecting point in the centre of the hind- 

 margin, the hindmargin itself on either side being \ariously crenulated. Forehead 

 hardly projecting ; palpi shortly rostriform ; tongue present ; antennae simjile in 

 both sexes. In the <^, near the base of the forewings occur two bladdery scaleless 

 patches, above and below the submedian fold. Neuration as in Lohopalta Warr. ; 

 the cell, however, is hardly half as long as the wing ; the median vein lies little 

 above the centre, and is slightly thickened and upcurved beyond the base above the 

 bladdery space. 



Type : K. hraidsiata Snell. 



Rhomboptila delicata sp. nov. 

 Forewings pale testaceous, suti'used with olive and tawny, and finely dusted with 

 blackish atoms ; basal area palest, edged by a fine irregularly dentate and wavy 

 black line at one-third ; second line lustrous lilac grey, finely edged internally with 

 darker, dentate, wa\3-, from two-thirds of inner margin to costa before apex, near 

 which it is angulated ; discal spot black ; just beyond it is a faint wavy olive central 

 shade, the space between which and the basal line is dull tawny, while that between 

 it and the external line is dull oli\'e ; costa narrowly white, more broadly immediately 

 before apex; an indistinct submarginal line indicated by blackish dots and blotches; 

 fringes darker near the anal angle. Hindwings with the basal half pale testaceous, 

 coarsely mottled with darker; cell spot large, round, lilack ; marginal half dull olive, 



