known forms of South African Butterflies. 245 



near allies, G. edicsa, Fab., and C, fieldii, Menetr. The ex- 

 tent to which Elcctra ranges northward from South Africa 

 is still very imperfectly known ; but Edusci from the north 

 certainly extends as far southward as Lake Nyassa, and 

 all the Tropical- African specimens I have seen do not 

 diHer from European examples except in the deeper 

 more orange-yellow tint of the males ; while those I 

 have recently received from Kisumu, British East-African 

 Protectorate, were also quite devoid of the distinctive marks 

 of Electra, vid. : the pink-violaceous gloss (much stronger 

 in the ^), and the heavy basal fuscous suffusion in the $. 



In reference to the melanic Aberration above described, 

 I may remark that the only other Colias I have seen which 

 exhibits any marked tendency to melanism is a ^ C. hyale 

 (L.) in the British Museum. In this example, which is 

 ticketed " Vesubie Valley, Nice (2,000 ft.)," both fore-wings 

 are for the greater part rather thinly suffused with fuscous 

 — the portions not suffused being the base, costal border 

 to beyond middle, and inner-marginal border almost to 

 posterior angle — the suffusion being denser at extremity 

 of discoidal cell; the yellow spots on the hind-marginal 

 border are faint and ill-defined. On the under-side the 

 fuscous suffusion in the fore-wings is much more limited, 

 prevailing only about extremity of cell and a little beyond, 

 but there is at the same time a very sparse sprinkling of 

 fuscous scales generally ; and in the hind-wings there is 

 a rather wide median suffusion of ferruginous-red. It is of 

 interest to find that, according to Staudinger (Cat. Lep. 

 Palsearct., 1901, p. 17), the aberration of C. hyale from 

 Sarepta named nigrofasciata by Grumm-Grshimailo is not 

 unlike the Nice example here described, his note of it being 

 " al. ant. vitta nigra discoidali." 



Family HESPERIID^. 



Subfamily PAMPHILIX^-E. 



Genus Kedestes. 

 Kedestes tucusa (Trim.). (Plate XX, figs. 8, 8a.) 



Pyrgus tucusa, Trim., Trans. Ent. Soc. Lond., 1883, p. 359 ; 



and S.-Afr. Butt.,iii, p. 297 (1889). 

 Kedestes tucusa, Watson, Proc, Zool. Soc. Lorul., 1893, 



p. 96. 



