( Ifil ) 



Hi'j. Ptychopoda atriseriata sp. uov. 



Foreiriiigs : bone-colour, sparsely dusted with black atoms ; tUe Hues marked 

 witli greyish ochreous scales ; first at one-third, curved, ofteu indistinct, marked also 

 by three black vein-dots ; median shade broad, parallel to hindmargin, situate at 

 two-thirds ; outer line at five-sixths, slightly waved, and marked by a very distinct 

 series of black vein-dots ; snbmarginal line pale, traversing a somewhat darker 

 marginal area ; fringe ochreous, with small black spots at the base, on the fringe at 

 the vein ends, not on the hindmargin ; cell-spot black and distinct. 



Ilirul icings : similar, but without first line ; median shade embracing the black 

 cell-dot ; marginal shades darker grey than on forewiugs. In both wings the space 

 between median shade and exterior line is paler and nndusted. 



Underside very similar, with the outer markings distinct. 



Face and palpi brown-black ; vertex whitish ; thorax and abdomen ochreous. 



Expanse of wings : S 16 mm. ; ¥ 18 mm. 



Two S c? from Onoribo, February — March 1893 ; another from the interior 

 of Surinam, August 1892, and three 6 <? from Paramaribo, December 1892 

 (C. W. Ellacombe). 



110. Ptychopoda flexicosta sp. uov. 



Fore/rings : greyish ochreous, dusted and suffused with darker ochreous, or 

 with dark grey; in the latter case the lines and markings are more distinct ; these 

 are all parallel more or less to one another and to the hindmargin ; first from two- 

 fifths of costa to one-fourth of inner margin ; median shade from two-thirds of costa 

 to middle of inner margin ; outer line irregularly dentate-lunulate, from five-sixths 

 of costa to three-fourths of inner margin, followed by a narrow pale space ; snb- 

 marginal line pale and waved between two narrow waved darker bauds ; a slight 

 row of marginal dark spots ; fringe concolorous, dusted and lined with grey ; cell- 

 spot dark, distinct. 



Uindwinga : similar, without first line. 



Underside coarsely dusted with fuscous atoms ; cell-spots and outer lines 

 distinct ; the marginal spots larger and plainer, at the ends of the veins as well as 

 between them. Head, thorax, and abdomen like wings. Antennae thick, subserrate, 

 with bristly cilia. 



Expanse of wings : 17 mm. 



Five Si from Parana, Eutre Rios, Argentina, two of the darker form, the other 

 three more ochreous ; the description is made from the darker specimens, as the 

 markings are apt to become lost in the paler ones. The costa of forewings is convex 

 near base and before apex, inflected between ; in perfect specimens the wings 

 present a mealy appearance. 



In the forewings the cell is more than half as long as the wing ; the discocellular 

 short, the subcostal and median veins being both bent inwards towards extremity ; 

 the lower radial rises from above the centre, the upper radial is somewhat curved 

 upwards at origin ; veins 7, 8, 9 stalked ; 10 anastomosing with 11 and again with 

 8, 9. In the hindwings (5, 7 are on a long stalk. Superficially the insect much 

 resembles some species of the Pyralid genus Mcfasia. 



