. Bulletin of the British Museum (Natural History) Entom Supp. GENERA OF AFRICAN LYCAENIDAE 123 quite distinct from the tegumen ; and in catori the very large dorsal elements are distally serrate and devoid of subunci. Had we based our classification solely on the male genitalia, it would have been possible to devise genera wholly homogeneous in respect of this character, yet decidedly heterogeneous in respect of the characters of the venation and external features. We therefore adopted a system which is pragmatic rather than strictly logical, by retaining the genus Iolaus as a kind of "
. Bulletin of the British Museum (Natural History) Entom Supp. GENERA OF AFRICAN LYCAENIDAE 123 quite distinct from the tegumen ; and in catori the very large dorsal elements are distally serrate and devoid of subunci. Had we based our classification solely on the male genitalia, it would have been possible to devise genera wholly homogeneous in respect of this character, yet decidedly heterogeneous in respect of the characters of the venation and external features. We therefore adopted a system which is pragmatic rather than strictly logical, by retaining the genus Iolaus as a kind of " super-genus ", by erecting subgenera for the species having genitalia profoundly different from the main bulk of the species, and by retaining the generic names hitherto in use, but treating them as subgenera. In this way it has resulted that within each subgenus there is both uniformity of venation and uniformity of genitalia. These characters are indicated in each of the subgenera adopted. IOLAUS (HEMIOLAUS) Aurivillius Hemiolaus Aurivillius, 1923 : 386 ; Pinhey, 1040 : 102. Type-species : Iolaus caeculus Hopffer, 1855, designated by Stemplter & Bennett, 1958 : 1254. Hypolycaena Feldcr (partim) ; Aurivillius, 1898 : 316 ; Murray, 1935 : 69 ; Swanepoel, 1953 : 180. Eyes smooth ; frons reddish with two white side stripes and a dark depressed median line ; palpi reaching well beyond the frons, third segment slender, acuminate ; antennae thin, 4/7th length of costa, each segment much longer than wide ; club gently swollen ; Legs as in llvpolycaena, q" fore leg unsegmented. Wing shape. Fore wing inner margin i ;* with a large lobe near the base ; hind wing outer margin excised between the ends of veins 3 and 4, a delicate tail at the end of vein 2 and a much longer one at the end of ib, a small lobe at the anal angle. Male secondary sexual characters : on the upperside of the hind wing a gleaming bronze patch covers the base of the wing and the greater part of the ce
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