( 267 ) 



Underside of {brewing paler, with the outer line marked and continued across 

 the white hiudwing. 



Head and thorax concolorons with forewings ; abdomen pale ochreons ; 

 antennae blackish. 



Expanse of wings : 44 mm. 



1 S from Oconeque, Carabaya, Pern, Timid ft., July 1004, dry season 

 (Ockenden), type ; 1 c? from Oushi, Huannco, Peru, 1900 m. (Hoffmanns). 



The same size as N. perilla Druce, from which it is separated by the white 

 hindwings, and smaller than impunctata Th.-Mg., which has greyish white 

 hindwings. 



201. Nipteria albithorax spec. nov. 



Of the same size, shape, and appearance as N. minor Th.-Mg., with which at 

 first sight it might appear identical, but distinguished by the following poiuts : 

 in the (brewing the costa is darker grey throughout ; the outer line runs nearer 

 cell-spot, rising from costa at two-thirds instead of four-fifths, is quite straight and 

 thick, and diffusely clouded at costa ; the inner line, from nearly one-third instead 

 of one-fourth, is also clouded at costa and rnns straight, not bent on subcostal 

 ■vein ; the outer margin is indented below apex ; the fringe dark grey above middle, 

 and grey spotted with darker below : the hindwing shows no dark line above. 



Underside with the lines in both wings thick and diffuse ; costa of forewing 

 with thick black striae. 



Vertex, shoulders, and patagia conspicuously white, the patagia blackish at 

 base ; in N. minor these are dull grey. 



1 <? from La Oroya, R. Inambari, S.E. Pern, 3100 ft,, October 1904, wet 

 season (Ockenden). 



202. Nipteria brevistriga spec. nov. 



Forewing ; semi-transparent, pale blurred grey ; costal area above subcostal 

 vein olive-ochreous, with fine dark speckling, and two short black streaks ; the 

 first oblique outwards at one-fourth, the outer oblique inwards beyond three- 

 fourths ; from the base of this last a very obscure straight grey line runs to 

 two-thirds of inner margin ; close beyond the outer black streak is a similar slight 

 grey line showing through from beneath ; a grey cell-spot on upper half of 

 discocellular ; apical and marginal areas clothed with olive-ochreous scales having 

 a somewhat gilded appearance ; fringe of the same colour, flecked with dark beyond 

 veins, with a faint dark basal and middle line. 



Hindwing : with a thick curved grey postmediau line, stopping short at 

 submcdiaii fold ; cell-spot grey ; the whole wing clothed with olive-ochreous scales ; 

 a darker shade before outer margin. 



Underside with the olive-ochreous areas densely covered with black confluent 

 striae ; of the two outer streaks on costa of forewing the outer one is black and the 

 inner grey ; cell-spots aud lines black. 



Head, thorax, and abdomen olive-ochreous ; antennae, vertex, shoulders and 

 base of patagia fuscous ; rings of abdomen fuscous. 



Expanse of wings : 44 mm. 



1 <5 from Oconeque, Carabaya, Pern, 7000 ft., July 1004, dry season 

 (Ockenden). 



