60 Mr. A. G. Butler on the 



106. Argidia rosacea, n. sp. 



Form and general pattern above of A. tarchon, but 

 clay-coloured, washed with rose-colour, the lines towards 

 the base and discoidal spots less distinct ; Avings below 

 orange, washed with rust-red towards the apex and outer 

 margin of secondaries ; the primaries, with the exception 

 of a broad costal streak and the internal border, washed 

 with the same colour ; apical border pearly-white, limited 

 internally by a submarginal oblique brown-edged snow- 

 white line ; apical fringe white, remainder of fringe in all 

 the wings brown ; the extrabasilar and discal lines dark 

 brown ; discoidal spots barely indicated by brown dots ; 

 body ochraceous, legs orange ; tibine of posterior legs 

 broadly fringed : expanse of wings 1 inch 8 lines. 



Uricuri, Rio Purus, 2nd October, 1874. 



A single example of this pretty species, which seems 

 most nearly allied to A. palmipes. 



Orthogramma, Guenee. 



The type of this genus, O. coppryi, was subsequently 

 described by Walker as Epitausa Icetahilis. As he had 

 wrongly identified Guenee's species, this might have been 

 considered a venial offence ; but there is no excuse for his 

 describing the male of the species regarded by himself as 

 O. coppryi under the name of Archana certa and the 

 female as Azeta apicifera ; the latter and Thermesia 

 guttularis are species of Orthogramma. 



O. vacillayis of Walker is identical with Plaxia ingenua 

 of the same author, and allied to " Thermesia " scalena of 

 Felder. 



107. Orthogramma pavescens, n. sp. 



Very pale olive-brown or stone-colour ; wings crossed, 

 from apex of primaries to middle of abdominal margin of 

 secondaries, by a well-marked, externally whitish-edged, 

 chocolate-brown, straight line ; area immediately beyond 

 this line Avashed with silver-grey ; a discal series of con- 

 nate black and white dots ; fringe grey ; prinuiries with 

 barely-distinguishable discoidal spots ; head and antennae 

 chocolate-brown ; undersurface fuliginous-broAvn ; prima- 

 I'ies whitish towards apex and outer margin; a sub- 

 marginal series of black dots ; secondaries crossed by a 



