540 Mr. G. T. Bethunc-Baker on new 



fold ; postmedian line dark, shortly oblique on the costa and 

 inner margin, waved, but nearly erect between these two 

 points, greyer beyond this line, a snbtriangular irregular very 

 dark chocolate patch on the costa in front of the apex, 

 opposite which the termen is darkly clouded ; termen palely 

 edged with an outer margin of very dark internervular 

 dashes. Secondaries dark brown with a trace of a short 

 postmedian line ; termen finely pale with internervular dark 

 dashes. 



Expanse 40 mm. 



Hab. Lokoja District (100 miles north). 



Type in my collection. 



Heterogramma stenoptera, sp. n, 



(^ . Head, thorax, and abdomen greyish brown. Primaries 

 brownish grey, with an antemedian angled dark line, post- 

 median line dark angled once at the cell (as the previous 

 line) with a dark point at the angle, a trace of a series of 

 dark subterminal points ; termen with fine dark internervular 

 dashes. Secondaries brownish grey. 



Expanse 20 mm. 



Ilab. Malange, Portuguese W. Africa. 



Type in my collection. 



Naarda unipunctata, sp. n. 



cJ . Head, thorax, and both wings sooty black, with a 

 small deep cream spot at reniform stigma followed by a 

 darker wavy line. 



Expanse 14 mm. 



Hah. Lokoja District (100 miles north). 



Type in my collection. 



Dichromia isosocles, sp. n. 



J . Head, thorax, and abdomen brown. Primaries dark 

 brown for the basal third, beyond which is a broad deep 

 cream isosceles triangle with the outer margin continuous 

 into the apex, this mark occupies most of the outer area of 

 the wing, the whole space being filled in with cream-colour, 

 except a small dark triangle below the costa ; there is also 

 a very dark costal subapical triangle ; termen broadly brown, 

 with a white spot below the apex adjoining the cream stripe 

 running into the apex. Secondaries dark grey-brown, with 

 a short tawny creamy dash from the anal angle. 



