( 316 ) 



curved lino from close before anal nngle to two-thirrls of costa, tlie dark margin 

 lieiiig mncli narrower than in ain-ij/ainmn Iliib. 



Iliiidniny : wholly brown-black. 



Underside dnilor, the veins of forewing finely grey, the dark areas grey-brown ; 

 hindwing with three orange snbcostal streaks from base. 



Head, thorax, and abdomen dnll blackish. 



Expanse of wings : 33 mm. 



1 cj from Estanzia Cooper, Alto Paragnay (Inslay). 



23. Tithraustes albinigra spec. nov. 



Foirtriiifi : white for basal two-fifths, then black with white spots ; along the 

 white basal area the costa and the subcostal and submedian veins are black, the 

 last most broadly ; in the black area are fonr white spots, one large and oblong at 

 end of cell, a small round one between veins 2 and 3 towards anal angle, and two 

 towards hindiuargin above middle, one on each radial; fringe black. 



Hindicing : white, with blackish border along hind and inner margins, forming 

 a broader patch at ajiex. 



Underside similar to upjier, but the submedian vein of forewing hardly marked 

 with black. 



Head, thorax, and abdomen black; base of patagia yellow ; abdomen beneath 

 and legs whitish ; fore and middle legs blackish in front. 



Expanse of wings : 20 mm. 



1 c? from Chiriqui. 



24. Tithraustes fumosa s])ec. nov. 



Foreirin;/ : dark olive-fnscons, with the veins slightly [laler, ending in dnll 

 yellowish marginal spots; a dnll yellow s]iot near base of cell; a waved dull 

 yellowish snbmarginal line ; fringe fuscons, with paler base. 



lUndwing : dull grey, semihyaline ; fringe dark grey. 



Underside dnll smoky fnscous. 



Head, thorax, abdomen, and legs all blackish fuscous. 



Expanse of wings : 54 mm. 



1 ? from (Ihiriqui. 



Both wings elongate for the genns. 



25. Xauthyris planilimbata spec nov. 



Fori'iriiig: yellow ; the dark border of the hindmargiu conspicuously narrower 

 than in J/arfolata Linn., its inner edge waved only, not toothed ; the veins not 

 marked ]>aler towards liindmargin ; the tint of the dark bordering is rather ]iurj)lish 

 brown than black. 



Hi 11(1 winy : similar. 



Underside like upper, but the inner edge of the border is not even waved. 



Head and thorax dark, like the border : shoulders with both internal and 

 external edges yellowish; abdomen yellow, the anal segment darker; tuft nf 

 hindlegs brownish. 



Expanse of wings : 44 mm. 



2 S^ from Chanchamayo, Pern, September lOdl fCiarlejip). 



