70 Annals of the Soiith African Museum. 



median slightly incurved between the radials, crossing the strong cell- 

 dot ; postmedian from beyond two-thirds costa to abdominal margin 

 near tornus, continuous, though accentuated by large vein-dots, 

 incurved between the radials, strongest about R 3 -M J ; distal area 

 nearly as on forewing. Underside more suffusedly irrorated ; first 

 line of forewing wanting, postmedian dots of both wings connected by 

 a line and closely succeeded distally by a moderately broad, distally 

 ill-defined brown band, suffused in places with purplish fuscous ; a 

 brown terminal line, somewhat thickened between the veins. 



Bechuanaland, Craberones, 1916 (Marshall), type; two paratypes, 

 from Ovampo Land, in coll. Brit. Mus. 



31. PERIDELA BIRECTA, sp. nov. 



cJ. 28 mm. Palpus one-and-a-half times the length of diameter 

 of eye. Antennal pectinations fully three times as long as diameter 

 of shaft, giving place, after about 36 joints, to mere teeth. Head and 

 palpus very pale ochreous brown, irrorated with ferruginous. Collar 

 somewhat ferruginous. Thorax above vinaceous buff, with a few 

 dark scales. Abdomen paler. 



Forewing with the venation apparently somewhat variable, subcostal 

 veins in the type crowded, SC 1 " 2 apparently coincident and anastomiug 

 slightly or connected with C (in the three Bloemfontein examples, as 

 is usual in the allied butaria, not crowded, SC 1 arising out of C, not 

 touching SC 2 ) ; white or whitish, tinged with yellow ; an isabelliue or 

 slightly fawn-coloured, fuscous-dotted patch from base nearly to first 

 line ; lines dark fuscous ; first from costa before one-third, slightly 

 excurved at first, then vertical to hind margin ; median line from 

 middle of costa to hindmargin at three-sevenths, obtusely angled 

 between the medians, straight before and behind ; space between first 

 and median lines concolorous with basal patch, darkened about DC 

 and behind submedian fold ; postmedian line from two-thirds costa, 

 excurved anteriorly and forming a very slight inward curve between 

 R 3 and hiudmargin ; nearly interrupted between radials, otherwise 

 thick, posteriorly with some dark shading proximally ; distal area 

 isabelline or fawn-coloured, separated from postmedian by a white 

 line ; subterminal white line distinct, rather thick, very slightly sinuous 

 but not lunulate, posteriorly curving outward nearly to toruus : some 

 fuscous spots proximally to the subterminal ; an oblique pale shade 

 from apex across subterminal line ; terminal line broken into dots or 

 dashes, not very sharp. Hindwiuy almost wholly pale, with a minute 

 discal dot and indications (chiefly in abdominal region) of postmedian 

 line and cloudy submargiual and marginal bauds (in the Bloemfoutein 



