"6 Sir G. F. Hampson on new 



side by a diffused dark red-brown band ; subterminal line white 

 defined on each side by red-brown, oblique to discal fold, then 

 incurved and minutely dentate, a small black spot beyond it below 

 costa ; a fine red-brown terminal line with two minute black spots 

 before it at middle ; cilia white with a fine red-brown line near 

 base to submedian fold and the tips tinged with red-brown at 

 middle. Hind wing silvery white faintly tinged with red-brown, 

 the cilia pure white. Underside white, the fore wing tinged with 

 red-brown on costal half. 



Hab. Subaw, Port Sudan (Waterfield), 1 $ type. Exp. 

 18 mm. 



(4 h) Prionopteryx rubricalis, sp. n. 



5 . Head and thorax rufous slightly mixed with whitish ; abdo- 

 men whitish suffused with rufous ; antennas blackish ringed with 

 white ; palpi red-brown mixed with white, blackish at extremity ; 

 pectus, legs, and ventral surface of abdomen whitish suffused with 

 red-brown, the tarsi red-brown ringed with white. Fore wing 

 rufous irrorated with white ; a small antemedial white spot above 

 inner margin ; small medial white spots on costa and in cell and 

 above and below vein 1 ; diffused blackish spots in and beyond end 

 of cell with a white spot between them on the discocellulars ; a 

 postmedial series of small white spots, somewhat incurved below 

 the costa and excurved beyond the cell ; a terminal series of small 

 blackish spots defined on inner side by a lunulate white line ; cilia 

 red-brown and white. Hind wing whitish tinged with rufous, the 

 cilia white with a red-brown line near base and some red-brown at 

 tips. Underside whitish suffused with rufous. 



Sab. N. Nigeria, Zungeru (Macfie, Simpson), 5 5 type. 

 Exp. 20 mm. 



(5 b) Prionopteryx microdontalis, sp. n. 



Antennas of male uniserrate ; hind wing with veins 4, 5 stalked. 



Head and thorax red-brown mixed with some white ; abdomen 

 white, dorsally tinged with red-brown towards base ; antennae 

 blackish ; palpi banded with blackish ; pectus and legs white 

 tinged with red-brown, the fore tibiae and the tarsi banded blackish 

 and white. Fore wing red-brown mixed with whitish, a whitish 

 fascia in submedian interspace ; a blackish subbasal mark above 

 inner margin with traces of the angled whitish antemedial line on 

 its outer side ; a rather diffused curved red-brown postmedial line, 

 interrupted at submedian fold and with short blackish fascia before 

 it on vein 1, defined on inner side by a white bar from costa ; sub- 

 terminal line whitish, very oblique and defined on inner side by 

 red-brown to discal fold, then dentate and defined on inner side 

 by minute dentate black marks, the area beyond it blackish below 

 discal fold, the apical area red-brown with a sinuous white streak 

 across it ; a fine black terminal line defined on inner side bv white 



