. Bulletin of the British Museum (Natural History) Entom Supp. GENERA OF AFRICAN LYCAENIDAE â 207 Wing shape. Fore wing subtriangular, hind wing oval, a thread-like tail about 3 mm. long, at the end of vein 2. Wing venation (Text-fig. 325). Fore wing with n veins ; 11 bent and touching 12 at one point. Male genitalia (Text-fig. 176). Uncus composed of two oblong lobes with rounded apices, subunci long, slightly curved, with blunt apices, folded under the uncus ; tegumen very much reduced, dorsally on the whole somewhat resembling species of holarctic Lvcaeninae, vinculum very wide ; lower fult
. Bulletin of the British Museum (Natural History) Entom Supp. GENERA OF AFRICAN LYCAENIDAE â 207 Wing shape. Fore wing subtriangular, hind wing oval, a thread-like tail about 3 mm. long, at the end of vein 2. Wing venation (Text-fig. 325). Fore wing with n veins ; 11 bent and touching 12 at one point. Male genitalia (Text-fig. 176). Uncus composed of two oblong lobes with rounded apices, subunci long, slightly curved, with blunt apices, folded under the uncus ; tegumen very much reduced, dorsally on the whole somewhat resembling species of holarctic Lvcaeninae, vinculum very wide ; lower fultura curtain-shaped and fused to the penis, which cannot be extracted without tearing open the apex of the fultura ; valves subtriangular, the two processes slightly separated at their lightly serrated apices, near the base on the inner surface there is a rounded, semimembranous process ; penis elongate, cylindrical in its internal portion, gradually tapering in its external portion to a sharply pointed apex, uncus and apices of valves pilose. The male genitalia of the ethiopian species generally placed in the genus Castalius are entirely different from those of rosimon, the type-species ; and they also display such a lack of uniformity that it is desirable to deal with each one individually. C. hintza. Male genitalia (Text-fig. 177) : uncus composed of two small semicircular lobes fused to the lateral angles of the tegumen ; no subunci ; tegumen very large with a rounded depression in its terminal margin ; vinculum very wide above ; lower fultura of two curved arms ; valves much reduced, disc-shaped, with a small hook at the apex ; penis highly special- ized, short, massive, the external portion divided into two processes, one short, spatulate, the other long, gutter-shaped, with slightly serrated edges and enclosing a sheaf of imbricated spines ; uncus and middle of valves pilose. The wing venation also differs slightly from that of rosimon inasmuch as in the fore wing vein 1
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