422 SIR GEORGE F. HAMPSON ON [Mar. 1 , 



Othiusa angularts Boisd. Faun. Ent. Mada.g. & Maur., Lep. 

 p. 103, pi. 13. f. 2 (1833). 



X.E. Rhodesia, E. Luangwa distr. 



Ophiusa mesonephele, sp. n. (PI. XXXVII. fig. 23.) 

 $ . Head, thorax, and abdomen brown tinged with purplish 

 grey ; palpi white at extreme tips ; tarsi ringed with whitish. 

 Fore wing brown suffused with purple-grey ; antemedial line 

 black, rather diffused on inner side, straight, erect ; postmedial 

 line with band of black suffusion before it, excurved at discal 

 and submedian folds, some pale points beyond it on costa ; two 

 obliquely placed dentate subapical black spots with traces of a 

 waved iine from them to inner margin ; a fine waved dark ter- 

 minal line. Hind wing grey-brown with fine waved dark terminal 

 line ; the underside grey-brown with slight dark irroration and 

 traces of a curved postmedial line. 



Hah. X.E. Rhodesia, Chambezi valley {Reave), 2 $ type, 

 Mansya R. (Reave), 1 § . Exp. 36 mm. 



Ophiusa goniophora, sp. n. (PI. XXXVII. fig. 15.) 

 S . Head and thorax ochreous grey mixed with black ; pectus 

 ochreous white ; tarsi fuscous with pale rings ; abdomen dorsally 

 fuscous, ventrally ochreous white. Fore wing grey-brown with 

 a purplish tinge, the basal half irrorated with black, the area 

 between the medial and postmedial lines suffused with black- 

 brown becoming velvety black at the postmedial line ; traces of a 

 fuscous sinuous subbasal line from costa to vein 1 ; antemedial 

 line indistinctly double, blackish, sinuous ; medial line diffused, 

 fuscous, inwardly oblique ; postmedial line very acutely angled 

 outwards at vein 6, then strongly incurved and excurved between 

 veins 3 and 2, its angle met by an oblique, sinuous streak from 

 apex, the enclosed costal area tinged with rufous and with some 

 pale points on costa ; a series of black points just before termen ; 

 cilia with a fine pale line at base. Hind wing fuscous brown ; 

 the underside greyish suffused and irrorated with fuscous, a black 

 discoidal point and two indistinct postmedial lines excurved below 

 costa,. 



Hah. Congo, Katanga, Kambove (Reave), 1 c? type. Exp. 

 52 mm. 



Genus Ctenusa, nov. 



Type, C. ccvrnicolor Hmpsn. 



Proboscis fully developed; palpi upturned, the 2nd joint 

 reaching vertex of head and moderately fringed with hair in 

 front, the 3rd moderate, oblique ; f rons smooth ; eyes large, round ; 

 antennae of male bipectinate with moderate branches, the apex 

 simple ; thorax clothed with hair only and without crests ; tibia? 

 moderately fringed with hair, the mid and hind tibiae strongly 

 spined ; abdomen without crests. Fore wing broad, the apex 

 rectangular, the termen evenly curved, crenulate ; veins 3 and 5 



