GENERA OF AFRICAN LYCAENIDAE 



■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 11 comes very near 12 but does not touch it. 



C. calice. Male genitalia (Text-fig. 178) : uncus composed of two small oval lobes fused to 

 the lateral angles of the tegumen ; subunci short, massive, only slightly curved, with a widened, 

 strongly dentate apex ; tegumen rather large, its posterior margin only slightly concave, lower 

 fultura in the form of a small lamella with slightly spatulate apex ; valves very large, the upper 

 process folded under the lower one and ending in a finely spinose rounded apex, lower process 

 connected to the vinculum by a membrane, its lower edge bearing teeth which are irregular in 

 shape and size, its apex widely falcate ; penis minute, slightly curved, gradually tapering ; 

 uncus pilose, valves with longer hair. 



C. gregorii. Male genitalia differ from those of calice only by the heavier upper process of the 

 valves. Probably these two species are only two races of the same species. 



Fig. 178. Castalius calice calice (Hopffer), <J genitalia. 



