albirupia. 
alternata. 
lamcllata. 
actena. 
irenc. 
decorata. 
sesqiufas- 
cia. 
canescens. 
interstinc- 
ta. 
lapsicoliun- 
na. 
paciolaria. 
dUissinut- 
ria. 
rhuidocam- 
pa. 
nitidula. 
frosinaria. 
gamma. 
92 CONCHYLIA. By L. B. Prout. 
C. albirupta Warr. (lU h). Somewhat recalls a lighter T. corticearia, the median area relatively darker 
but without black boundarydines, the subterminal filled-in proximally with dark spots. Kikuyu Escarpment, 
only one pair known, the ^ larger and darker than the ^ and with the pale, dark-centred subterminal spot of 
cellule 3 much more conspicuous. 
13. Genus: Concliylia 
Closely related to Lithostege and Chesias (Vol. 4, pp. 171, 179), the foretibia similarly clawed, the d 
hindwing with a similar jiocket at the base beneath. Face generally less protuberant, palpus somewhat shorter, 
tongue generally shorter and weaker, antenna of d — except in a few species —• pectinate, hindwing of the d 
—■ except in sesqnifascia — with the 2nd median vein running to anal angle, not to middle of inner margin. 
In the genotype (ditissiniaria) and some others, the white ground-colour of the forewing is strongly nacreous. 
The genus is exclusively African, chiefly South African. 
C. alternata Warr. {=■ argenteofasciata Weym.) (10 b). Very distinct in its less narrowed wings, the 
4 parallel brown bands on the nacreous white forewing, etc. Antenna of simple, lamellate. Angola. Con¬ 
stitutes the type of Weymeb's genus Callythria. 
C. lamellata Prout (10 b). In markings closely similar to nitidula (10 c), but with the cj antenna lamel¬ 
late, not pectinate. The brown lines are rather slenderer. The fore wing has almost the same strong pearly 
gloss as in the nitidula group. Port Elizabeth. 
C. actena Prout (10 b). Antenna of the d' nearly as in the preceding species. The white forewing glossy, 
but less intensely, the markings nearly as in irene (10 b). Cape Colony; Fraserburg. 
C. irene Prout (10 b). In this and all the succeeding species of the genus the (J antenna is pectinate. 
The hindwing shows a broad, though faint, brownish border. Foot of Nieuwveld Mountains, Cape Colony. 
C. decorata Warr. (10 c). A pretty and unmistakable species, known by the irregular edges of the brown 
bands, etc. Orange Free State. Also known from Cape Colony. 
C. sesqnifascia Prout (10 c). Smaller and much browner than acteyia and ire7ie, the bands edged with 
white, the incomplete proximal one not, or scarcely, more oblique than the distal. Transvaal and Orange 
Free State. —■ canescens Prout (10 c) is still smaller, paler, moi’e weakly marked. S. W. Africa, Kuruman 
and Angola. The genitalia indicate a distinct species. 
C. intersitncta Prout, founded on 2 $$ from Uaso Nyiro, Kenya (W. N. van Someren), has the 
dark bands more mixed with orange than in ca7iesce7is, the outer one throwing out broad distal projections 
between the veins. The type has less strong dark suffusions between the bands than the ])aratype here figured. 
C. lapsicolumna Prout (10 c). Bands of forewing broader and much brighter brown than in ire7ie, 
finely dark-edged, a siditerminal shade indicated. Hindwing somewhat irrorated with brown. Transvaal. 
Some slightly modified forms from S. Rhodesia, the Kalahari Desert and S. W. Africa will perhaps represent 
separable races. 
C. pactolaria Wllgrn. (10 c). Forewing strongly nacreous, the bands still brighter than in lapsicolimina 
(more yellow), the antemedian more broken near its anterior end, the postmedian running to the apex. Hind¬ 
wing white. Transvaal. Also occurs in Southern Rhodesia. 
C. ditissimaria Gue7i. (10 c). Pectinations of long. Somewhat variable, the outer band always much 
straighter than in the 3 species which follow. Hindwing of $ white, of generally rather strongly smoky. The 
type from “Caffraria”, the known range from Cape Colony to Transvaal. 
C. rhabdocampa sp. n. (10 c). Very like ditissimaria, the pectinations not quite so long, the first band 
arising closer to, the base and running more parallel with costa, the outer band curved posteriorly, the hindwing 
in the less dark, generally showing traces of a postmedian band, in the $ less white. Cape Colony; Annshaw 
(IMiss F. Barrett) 8 d'd' 1 $ in Mus. Brit., including the type; others in my collection. 
C. nitidula Stoll (= nitidularia Oue7i.) (10 c.) Pectinations much shorter, bands more slender, the outer 
more sharply bent than in rhabdocampa, then running baseward. Cape Colony; ? Natal. 
C. frosinaria Stoll (10 d). Generally rather larger, the bands more sinuous or dentate, an additional 
dark mark between them. Cape Colony. Also from Okiep, S. W. Protectorate. 
C. gamnia^(10 d) differs in the form of the brown bars, which constitute, when viewed from the apex 
of the right wing, a Greek Gamma. Bushman Land, 1 $. 
