OP/rHOLITHA. By L. B. Brout. 
87 
0. cryptospilata Walk. (9 d). In shape and in the tone of the underside somewhat reminiscent of the rri/fj/o- 
Palaearctic coelinaria Grasl., markings more ohliqne, no dai'k apical dash, a large black cell-spot on foj'ewdng f^inlah;. 
beneath. Basutoland and Natal to the Ca])e. 
0. cryptocycla Prout (9d). More brownish, postmedian curved near costa, then almost straight, cell- r,///(/w//r 
spot beneath still larger. Transvaal. 
0. peringueyi Prout (9 d). Easily known by its coloration, shape of the median band, sub])unctiform 
siibterminal of forewing and rather strong submarginal band of hindwing, es])ecially beneath. Cape Colony. 
la. 
fK’r’f . 
0. subrectiaria Wall'. (= cidariata Walk.) (9d). I’attern simpler, the white lines neither dentate nor fiabrrcfta 
punctiform, the ])ostmedian little bent. Ca])e Colony and Namaqualand. — recta Prout, from Madagascai’, is 
somewhat less brownish and has the subbasal and antemedian lines of the forewing almost straight. 
na. 
recta. 
0. rhiogyra Prout (9 e). Again very distinct in the form of the median band of forewing; a cons])icuous rhiaiiyra. 
white dash from apex. Hindwing whitish. Underside as strongly marked as in peringueyi, the sid)terminal 
bands browner. Kenya Colony (loc. typ.), Tanganyika Territory and S. W. Kivu. 
0. ferridotata Walk. (9 e). First lines as straight as in recta, median band broken into two bars, post- irrrUMata. 
median line twice incurved, with outward angle behind 3rd radial, a stronger dark apical dash than in suh- 
rectiaria. Underside weakly marked. Cape Colony. 
0. deversa Prout (9e). Smaller, with highly characteristic antemedian line, strongly marked hind- (lerersn. 
wing and underside, etc. Described from the Transvaal, but now known from S. Rhodesia to Orange Free 
State and Natal. 
0. horismodes Prout. (9 e). Somewhat different in build from any of the preceding, the abdomen rather korlnnodes. 
rol)ust, the oblicpie and sinuous markings of the forewing somewhat suggesting a Horisme. Transvaal; also 
known from Cape Colony. 
0. crenuUmargO Prout (9e) may be known at once by the appreciably crenulate wing-margins. Our 
figure is somewhat too brightly coloured, but otherwise excellent. Cape Colony. 
0. olbia P rotit (9 e). As the G is still unknown, the exact ])lacing of this species is conjectural. Palpus 
long and strong. The l)right coloiiring of the forewing, white hindwing and strongly marked undei'side (the 
general scheme of the latter as in rhiogyra) render it unmistakable. Transvaal. — parvula Prout is a small 
race from the mountains of Kenya Colony, with the underside less strongly marked. 
0. albodivisaria Auriv. is unknown to me. Evidently very similar to X. conchala (9 b) but longer-winged, 
with the postmedian line more sinuoiis. ,,Antenna pectinate to with rather long branches” (Aurtviulius in 
litt.). Kilimandjaro. Kiboscho, 3009 m, only the type known. 
crenuti- 
rnanjo. 
olliia. 
parvula. 
uUmdivisa- 
ria. 
0. albiclausa Warr. (9e). An obscure little species, shaped much like olhia and with similarly white alhiclaimi. 
hindwing, but with fore wing miich less gay and its markings more recalling those of Alinwclystia pudicata. 
Palpus long, rough-scaled, as in Xanthorhoe conchata, towaixls which it and the ])receding species seem to make 
transitions. Natal (type) and Cape Colony. 
B. Antenna of c i 1 i a t e d. 
0. limonias sp. n. (9f). Near olhia (9e), palpirs less large, coloration less bright, antemedian line rnuouias. 
much more curved, postmedian only once lobed (without the lobe in cellule 2), a pale subapical dash indicated. 
Both wings beneath equally coloured, with small but distinct cell-dot and rather strong ])ostmedian line. Per¬ 
haps also near albodivisaria, but with the antenna simple. Elanairobi Volcano, 8800 feet, March 1921, open 
meadows and bush, Arusha District, Tanganyika (T. A. Barxs), 1 (^. 
0. lamprammodes Prout (9f). Antenna of lamellate, with the ciliation very short. Wings remark- lampram- 
ably elongate; the markings of the forewing even more oblicpie than the distal margin, otherwise similar to uwdes. 
those of albiclausa. The only ^ before me is brown in tone instead of warm buff. Transvaal (type) and Natal. 
0. epiperena Prout (9f). Somewhat like a small dark peringueyi, but with cpiite different antenna, epiperena. 
twice angled antemedian line of forewing, no dark subterminal band on hindwing. Transvaal (type) and Cape. 
0. alumna Prout (9f). As large as peringueyi, the rather narrow median area less differentiated from ahnuna. 
the rest of the forewing than in either that species or epiperena , its boundaries much more direct. Probably 
nearer to africana, though slightly less broad-winged, antenna lamellate, with very short ciliation. Cape Colony. 
0. africana Warr. Upperside rather less glossy than in alumna^ (f*^)» underside still more weakly mark- africana. 
ed and without the purplish flush which is there noticeable. Median area of forewing less narrow, more mixed 
