PRIONOFRONTIA. 
81 
towards apex ; the underside with the costal area slightly 
irrorated with brown, the brown on terminal area not reaching 
tornus. 
Hab. Transvaal, Lydenburg, 1 $ type. Exp. 34 millim. 
Prionofrontia nyctiscia, n. sp. 
$■ Head and thorax red-brown mixed with grey and black ; 
pectus whitish ; tarsi black ringed with white ; abdomen 
white irrorated with brown, the basal crest black. Fore 
wing red-brown mixed with dark brown and ochreous whitish 
and tinged with leaden-grey ; subbasal line black, curved, 
from costa to vein 1 ; antemedial line double, blackish, 
sinuous ; a slight dark striga from middle of costa ; reniform 
slightly defined by black ; postmeclial line indistinct, black, 
bent outwards below costa, then excurved, at vein 3 retracted 
to near origin of vein 2, then erect and sinuous ; a subterminal 
series of slight black and white streaks on the veins ; a series 
of black striae before termen. Hind whig pure white, the 
hair on inner margin with a yellowish tinge. Underside white ; 
fore wing with the costal area irrorated with brown, the 
reniform and a subapical mark blackish. 
Hab. Br. E. Africa, Athi-ya-Mawe ( Betton ), 1 $ type. 
Exp. 26 millim. 
Prionofrontia ochrosia, n. sp. 
$. Head, thorax, and abdomen pale brown mixed with 
grey-white, the patagia with blackish line towards extremi- 
ties ; palpi with some black at side of 2nd joint ; pectus, 
legs and ventral surface of abdomen brownish white, the 
tarsi blackish ringed with white. Fore wing pale brown 
mixed with whitish and slightly irrorated with black ; sub- 
basal line indistinctly double, dark, curved, from costa to 
vein 1 ; a faint dark shade before the antemedial line, which is 
double, dark, sinuous ; reniform defined by black, narrow, 
oblique ; an indistinct oblique sinuous dark medial line ; 
postmedial line double, the inner line black, the outer in- 
distinct, excurved from below costa to vein 4, then incurved 
to below the reniform and rather oblique to inner margin ; 
subterminal line white defined on each side by rather diffused 
fuscous, oblique and slightly sinuous to vein 2, where it is 
angled inwards, then excurved to inner margin, the veins 
before and beyond it with slight blackish streaks ; a waved 
black terminal line. Hind wing white, the terminal area 
fuscous narrowing to tornus ; cilia white. Underside of fore 
wing white, a fuscous discoidal lunule and subterminal shade 
to vein 2, diffused to termen towards apex ; hind wing with 
the terminal half of costal area slightly irrorated with brown. 
a 
