204 
Annals of the Tbansvaal Museum, 
postmedian line (little beyond the middle), which is slightly pale-shaded 
distally ; terminal line slender, weakly ferruginous, followed by a fine 
pale line at base of fringe. Under surface pale brown, slightly tinged with 
ochreous ; fore wing with large, roundish black discal mark and sometimes 
a weak postmedian line formed as above ; hindwing with minute discal 
dot and sometimes weak postmedian line. 
Waterval Onder, 22nd November, 1910, type ($) in coll. A. J. T. Janse, 
White Eiver, Eastern Transvaal, December, 1906 (A. T. Cooke), Johannes- 
burg, 5th January, 1902, both $ $, in coll. British Museum. Pretoria, 
December, 1900 (Dr. Breyer), in coll. L. B. Prout. Also represented 
in coll. Transvaal Museum. 
Closely related to O. cryptospilata Walk. (List Lep. Ins., British Museum 
xx vi, 1738), but usually distinguishable by its warmer colour (that species 
being cinereous) and always by the course of the lines ; in Walker’s species 
the postmedian line is not curved anteriorly but outangled in middle and 
the subterminal is distinct and straight. 
Onychia epipercna, n. sp. (PL XII, Fig. 20). 
5, 27 mm. Face blackish. Palpus blackish, beneath whitish basally. 
Vertex and thorax concolorous with forewing, abdomen with hindwing, 
the abdomen with weak indications of large paired dark dorsal spots. 
Legs irrorated dark and lighter, but without distinct markings. 
Forewing glossy pale grey, densely irrorated with fuscous ; subbasal 
band moderately broad, darker and more mixed with ferruginous, inter- 
ruptedly edged on both sides with black, a black tooth distally in cell 
being noticeable ; followed by a very fine, inconspicuous pale line ; median 
band rather broad, edged by fine pale (mostly white) line proximally and 
distally ; proximally with deep, pointed incisions on both the folds, distally 
with a small tooth outwards between SC 5 and BJ, a strong pointed 
projection between E 3 and M 1 and minute indentations on all the veins ; 
centre of the band less dark than its marginal parts, marked off by very 
weak dentate dark lines ; distal extremity of the band interruptedly 
ferruginous ; discal dot minute ; terminal area mostly dark, an interrupted 
pale line closely following the pale margin of the band, an interrupted 
pale subterminal line, clearest and whitest at costa ; an oblique black 
streak from apex, starting in the fringe ; terminal line blackish, waved, 
slightly interrupted at the veins ; fringe cut by an ill-defined, thick dark 
line, thickest opposite the veins. Hindwing paler and still more glossy, 
with a grey postmedian line, which is outbent between SC 2 and B 1 and 
just behind B 3 . Fore wing beneath weakly marked, the proximal part to 
beyond two-thirds slightly greyer than the distal, the division rather 
sharp, suggesting a postmedian line formed nearly like that of the hind- 
wing ; hindwing beneath rather darker and sharper-marked than above, 
with a strong black discal spot and strong thick postmedian line, the latter 
accompanied distally by a vague pale one. 
Haenertsburg, 6th December, 1909 (C. J. Swierstra). Type in coil. 
L. B. Prout ; cotype in coll. Transvaal Museum. Also in that Museum 
an interesting, nearly unicolorous dark aberration ($, same locality, 
4th December, 1909) with the median band narrowed, its centre black, 
