African Species of t lie Genus Acraca. 139 



9. Eesembles ^ but ground-colour rather less brilliant, and 

 a trace of a pale subapical bar just beyond f.-w. discal spots. In 

 one example before me the ground-colour is pale brownish 

 ochreous and there is a distinct whitish subapical bar. Abdomen 

 black above with large yellowish lateral spots. Pale yellowish 

 beneath. 



Wet season form ^ . Ground-colour as in dry form but all the 

 black markings larger. A lilack marginal border about 1 mm. 

 wide round both wings, narrower at angle of f.-w. and from angle 

 to base of h.-w. All spots much larger than in dry form. In 

 f.-w. an extra spot near base of lb and a hind-marginal spot in la 

 immediately below the spot in 2. In h.-w. a well-developed 

 spot in 3, close to end of cell. 



Underside much as in dry form, but .s^iots larger in f.-w. and in 

 h.-w. 3 the extra spot is present. In f.-w. there is a narrow 

 submarginal line of ochreous along hind margin, and in h.-w. a 

 similar line rather broader and bounded on its inner edge by a 

 fine black line. 



9 . Ground-colour dull brownish ochreous to sepia black, 

 spotted as in ^ . The blackest forms show a small white sub- 

 apical bar in f.-w. the development of which becomes less the 

 more nearly the ground-colour approaches that of the ^ . 



Weymer's ab. decora is a f^ with much of the f.-w. ground- 

 colour replaced by black. It is merely a melanic aberration. 



The " seasonal " forms appear quite irregularly and 

 seem all to occur together at least in Angola. 



51. ACRAEA PERirHANES. PI. IX, If. 6, 7. 



Acraca periphanes, Oberthiir, Etud. d'Ent., 17, p. 20, pi. 2, f. 23 

 (1893) ; Butler, Proc. Zool. Soc, p. 657 (1894) ; I.e. p. 116 

 (1896) ; Trans. Ent. Soc, p. 107 (1897) ; Aurivillius, 

 Ehop. Aeth., p. 97 (1908) ; Neave, Proc. Zool. Soc, p. 19 

 (1910). 

 L. Meru ; Nyassai.and (Zomba) ; Congo (Lualaba, 



Katanga) ; Rhodesia (Kasama, Lower Chambezi R., L. 



Bangweolo). 



f. beni. 



= J[. feem, Bethune-Baker, Proc. Zool. Soc, p. 110 (1908); 



Eltringham, Novit. Zool., xviii, p. 152 (1911). 

 Angola ; Rhodesia (Lower Chambezi Valley ; L. Bangweolo). 



f, vielaina, Eltringham, Novit. Zool., xviii, p. 152 (1911), 



