( -9 ) 



Hindwing : with basal two-thirds bone-colour dusted with darker, an atite- 

 mediau shade preceding cell-spot ; outer line piinctnlate ; marginal area as in 

 forewing, but not so dark. 



Underside the same, but paler and (hiller. 



Head and thorax purplish black ; abdomen l)rowa with black dorsal screak ; 

 vertex and antennae snow-white. 



Expanse of wings : 19 mm. 



1 <J from Chulnmani, Bolivia, 200(.i m., December, beginning of wet season 

 (Simons). Near O. bninnea Warr. from Brazil. 



86. Pigia semicostata spec. nov. 



Forewing : white, the markings gre}' ; costa finely grey, more broadly towards 

 apex, before which there are four oblique fuscous streaks, representing the com- 

 mencement of as many lines ; a curved grey iimer line, very indistinct ; a dift'nse 

 straight oblique median shade from before middle of inner margin towards apex, 

 retracted to first costal spot at vein 6, darker marked on veins ; outer line dentate- 

 lunulate, from two-thirds of inner margin, marked by black dashes on tlie veins, 

 also retracted at vein to the second costal spot ; two snbmarginal diffuse dark 

 grey wavy shades, curving inwards to the first and second spots, these also some- 

 times marked with dark lines on the veins ; a series of black marginal dashes ; 

 fringe white, with darker basal line ; cell-spot small, blackish. 



Uimhrimj : with all four lines diffnse and dentate, and parallel to each other. 



Underside dull whitish, the forewing stained with grey. 



Face, palpi, and vertex black ; collar pale brown ; shoulders and patagia wliite ; 

 abdomen white, tinged with grey. 



Expanse of wings : t?, 22 mm. ; ? , 24 mm. 



1 cJ, 1 ?, from Santo Domingo, C'arabaya, S.E. Peru, 6000 ft., November 1001, 

 wet season (Ockenden). Both ground colour and markings are paler in the cf 

 than in the ? . 



Pseudasellodes gen. nov. 



Foreiring: with costa straiglit, but strongly convex before apex, which is 

 subfalcate ; hindmargin with a small tooth at vein 7, and two teeth at veins 3 and 4, 

 above and below which the margin is concave. 



Ilinihriiifi : fully developed ; both angles well marked ; a strong tooth at 

 end of vein (!, and a smaller one at vein 4, the margin between strongly excised. 



Antennae of S subserrate witii very long ciliations ; palpi quite short ; tongue 

 and frenulum present ; hindlegs of S aborted. 



Neuration : forewing, cell about half as long as wing ; discocellnlar oblique ; 

 first median nervule at one half, second well before end of cell ; lower radial from 

 upper fonrth of discocellnlar, upper from upper angle ; 7, 8, 9 stalked from before 

 end of cell, 10 and 11 stalked from middle. Hi anastomosing with 8,9; hindwing 

 () and 7 stalked ; radial from centre of discocellnlar ; vein 2 absent, or with basal 

 fourth only developed. 



Type P. comtellata spec. nov. 



DifJers from Axi'Uoilen in the hindwing of 6 being not aborted and contorted 

 along innrr margin and anal angle. 



