Annals of the Transvaal Museum. 
203 
typical Lithostege. The rather more protuberant frons, better developed 
tongue and rougher scaling differentiate it from Conchylia, but it is 
undoubtedly intermediate and Conchylia may probably have to sink. 
Onychia deversa, n. sp. (PI. XII, Fig. 14). 
(£, 27 mm. Head, body, and legs whitish grey densely mixed with 
fuscous, the abdomen dorsally less strongly than the thorax. 
Forewing with basal patch and median band fuscous, margined with 
fine white lines ; the basal patch moderately large, its proximal half paler 
than its distal, tinged with pink, its margin slightly curved and with small 
indentation at SC ; median band broken into two by a broad whitish, 
pink-tinged central band, its proximal margin extremely indented in cell, 
slightly oblique outwards posteriorly, its distal margin lobed in middle, 
inbent in submedian area, then rather oblique to near tornus ; an elongate 
black discal mark inconspicuous on the median band, just proximally to 
its pale part ; a pinkish white lunulate-dentate subterminal line, with a 
long tooth basewards at SC 5 and crossed by a broad oblique whitish streak 
from apex ; a fine pale brownish line closely following the median band ; 
the rest of the wing marked with brown and fuscous, the fuscous strongest 
proximally to the subterminal line and as an interrupted line at termen ; 
fringe whitish proximally, somewhat chequered with fuscous dis tally. 
Hindwing pale greyish with a sinuous whitish postmedian band, divided 
by a grey line ; two weak dark lines proximally to this band and traces of 
a slender pale subterminal line ; termen and fringe as on forewing ; no 
cell-spot. Underside of forewing more uniform light fuscous as far as 
end of median band, with a large cell-spot ; a whitish line bounding median 
band ; subterminal broken up into white dots between the veins. Under- 
side of hindwing similar to upper, but sharper-marked and with sub terminal 
line as on forewing beneath. 
Groenvlei, 4th January, 1907, type in coll. A. J. T. Janse. Pretoria 
17th February, 1907 (A. J. T. Janse), one in coll. L. B. Prout. Haenerts- 
burg, 5th December, 1909, 2 $ (C. J. Swierstra). 
Except in the more irregular proximal margin of the median band 
and the whiter hindwing, this species strongly recalls the Palaearctic 
O. peribolata Hb. 
Onychia cryptocycla , n. sp. (PI. XII, Fig. 35). 
?, 32-37 mm. Head and body concolorous with wings. Forewing 
fawn-colour, sometimes greyish, irrorated with darker in such wise as to 
suggest a series of extremely indistinct wavy transverse lines ; lines 
ferruginous ; first line from costa at about one-fifth, right-angled in cell, 
thence nearly straight and vertical to posterior margin ; second line 
(proximal edge of median area) from costa just beyond one-third, gently 
curved or wavy ; postmedian from about two-thirds costa, gently out- 
curved anteriorly, then parallel with termen, again very slightly curved 
towards termen posteriorly ; cell-spot large, diffuse, slaty-grey, darker 
on DC 2 itself ; subterminal pale line lunulate-dentate, extremely indis- 
tinct ; terminal line ferruginous, rather less bright than the other lines. 
Hindwing slightly paler, unmarked or with a very weak, curved ferruginous 
