new Neotropical Geometndse. 517 



straight and less distinct (except on veins) from M 1 to sub- 

 median fold, thence incurved nearly as in rupertata ; sonic 

 dark fuscous and red-brown clouding on and about R s on 

 either side of the postmedian ; apex scarcely paler than the 

 subapical patch. Hind wing with antemedian scarcely 

 double, the dark shade behind it being almost entirely obso- 

 lete; postmedian fine and ill-defined in costal half of wing, 

 more distinct, and with thickened marks on the veins, in 

 inner-marginal half, angled on radial fold (K 1 ) and bent 

 inwards below, to lower angle of cell, as in fore wing. 

 Underside of fore wing with the dark costal shading and 

 discal spot and the normal subapical patch, sometimes with 

 some weak dark sub marginal shading from this patch to 

 below M 1 , and a weak curved line, darker-dotted on the veins, 

 from the proximal edge of the patch parallel with terinen to 

 M 2 , some dark postmedian clouding about R 3 ; underside of 

 hind wing unmarked, or with a dark cell-spot. 



Santo Domingo, Carabava, S.E. Peru, 6000 feet; type. I 

 have also seen one or two others from this localitv. Ocone- 

 que, S.E. Peru, 7000 feet, July 1901; a fine £ in Coll. 

 Brit. Mus. 



Iridopsis w-notatu, sp. n. 



(J . 36-39 mm. ; ? . 40-11 mm.— Head (with face), 

 thorax, and abdomen whitish, mixed with fuscous, palpus more 

 strongly fuscous. Wings scarcely iridescent, whitish, dusted 

 with coarse fuscous atoms, and in the $ more or less strongly 

 shaded with tawny brown on the veins, about the margins 

 (especially in the middle of inner margin of fore wing), and 

 beyond the postmedian of fore wing subapic illy, but without 

 the strong subapical pitch of the syrniaria group. Pore 

 wing with the antemedian line as in most of the genus, 

 slender, grey, ill-defined, preceded by an ill-defined diffuse 

 shade, grey in the ? , more tawny in the $ , both line and 

 shade starting from dark spots on costa, and closely approxi- 

 mating posteriorly ; median line usually obsolescent except 

 for a dark spot on costa above the cell-spot and another just 

 before mid. tie of inner margin ; cell-spot large, roundish, 

 dark grey ; postmedian line from a dark spot on costa at 

 beyond two-thirds, forming a black W between SC 5 and K 2 

 (with its base pointing distad), terminating abruptlv imme- 

 diately below R 2 and scarcely discernible in a few dark scales 

 beyond (which show that it follows nearly the same course as 

 in /. syrniaria) , and a blackish comma just beyond the middle 

 of inner margiu ; subterminal pale line very indistinct, only 

 rendered visible by some accumulation of the darn atoms, 



