436 NOCTuin.T:. 



from middle of costa ; postmedial line strongly bent outwards below 

 Costa, then indistinctlj' double, oblique and minutely dentate below 

 vein 4, defined on outer side by white towards inner margin, some 

 white points with blackish streaks between them beyond it on costa ; 

 subterminal line black-brown defined on outer side by white, 

 minutely dentate below costa, bent inwards and strong between 

 veins 8 and 5, its outer edge produced to a tooth below vein 6, bent 

 inwards at vein 2, then oblique to inner margin ; an oblique dentate 

 black mark from termen just below apex with some white below 

 it ; a series of black striae defined on inner side by white lunules 

 just before termen ; cilia with a waved blackish line at middle. 

 ]Iind wing white, the veins and inner area faintly tinged with 

 browm, the terminal area broadly fuscous brown with a slight 

 waved w^hite line just before termen ; cilia white slightly mixed 

 with brown ; the underside with the costal area irrorated with 

 brown, a black discoidal spot. 



Hah. Br. N. Guinea, Owgarra (Meelr), 1 $ , Dinawa (Pratt), 

 1 $ , Mt. Kebea (Pratt), type t in Coll. Bethune-Baker. Exp. 44 

 millim. 



6783. Risoba olivens. (Plate CLXXXVI. fig. 2.) 



Bisoha olivens, Beth.-Baker, Nov. Zool. xiii. p. 234 (1906). 



(S . Head red-brown ; palpi writh. some grey at base and tips ; 

 lower part of frons whitish ; tegulge grey irrorated with red-brown, 

 with red-brown line at base and slight black tips ; thorax white 

 mixed wdtb red-brown and blackish ; pectus white tinged wath 

 brown ; legs red- brown, the tarsi ringed with white ; abdomen 

 red-brown mixed with greyish, with paired dorsal black bars on 1st 

 two segments and black crest on 4th segment, the ventral surface 

 with some white at base and on anal tuft. Fore wing red-brown 

 tinged with olive ; the basal area white to the very oblique minutely 

 waved subbasal line from costa to inner margin with diffused red- 

 browu patch on it on inner area, and followed by a white streak on 

 inner margin extending to postmedial line ; antemedial line very 

 indistinct and oblique, minutely waved ; elaviform and orbicular 

 absent ; reniform small, round, with red-brown centre and whitish 

 annulus defined by blackish ; a slight dark striga from middle of 

 costa ; postmedial line dark brown slightly defined by Avhitish on 

 outer side, acutely angled inwards below costa, then strongly bent 

 outwards, then minutely dentate and incurved below veiii 4 ; some 

 white suffusion on costal area fi'om end of cell to subterminal line 

 with slight blackish streaks on costa; the subterminal line dark 

 brown with black-brown lunule on it below costa met by a diffused 

 oblique brown fascia from apex with white patch below it and 

 blackish streaks on the veins, the line minutely dentate, angled 

 outwards below vein 7 and at vein 4, then oblique ; a series of black 

 strife just before termen defined by white lunules on inner side ; 

 cilia with some white at base on apical half and waved brown 



