African Species of the Genus Acraea. 261 



what to the pharsaloides form, but all have the inter- 

 nervular rays of the h.-w. linear and not triangular, and 

 they are narrower in pharsalus than in vuilloti. One ^ is 

 an intermediate, and there can I think be no doubt that 

 Aurivillius is correct in his suggestion that vuilloti is a 

 form of pharsalus. 



The type of vuilloti was taken at Kikoka Station, 

 Bagamoyo, German E. Africa. 



The larva of pharsalus from Kitta, Cameroon, is de- 

 scribed by Aurivillius as follows : — 



Reddish yellow above, paler below ; a narrow dorsal line, 

 small streaks at fore and hind parts of each segment, and at the 

 spiracles, black. Tlie spines are not longer than the diameter of 

 the body and are finely branched. The upper branches are 

 black and the lower whitish. 



The pnpa is also figured, and is shown as white with only 



• very faint black lines on the wing cases, etc. It is smooth, and 



has two dorsal, two lateral, and a vertical row of black marks, 



most of which appear to be in the form of double streaks with a 



dot between. 



The above description agrees with the larvae sent home 

 by Mr. Lamborn (PI. VI, f. 7), except that the ground- 

 colour does not appear to be reddish above. I may add 

 that the head is black with a rather conspicuous central, 

 vertically bifurcated white line. 



Mabille lecords the species from Madagascar, but it 

 seems almost certain that this is an error. 



GROUP XVII. 



96. Acraea perenna. PI. XV, f. 4. 



Acraen perenna, Doubleday, Hew. and Westw., Gen. Di. Lep., pl. 

 19, f 4 (1848) ; Butler, Proc. Zool. Soc, p. (36(1888) ; Auri- 

 villius, Rhop. Aeth., p. 93 (1898) ; Neave, Novit. Zool., 11, 

 p. 346 (1904) ; Strand, Wien. Ent. Zeit., (29) 1, p. 29 (1910) ; 

 Neave, Proc. Zool. Soc, p. 14(1910) ; Grlinberg, Sitzb. Ges. 

 nat. Fr., p. 149 (1910). 

 = polydectes, Ward, Ent. Mo. Mag , 8, p. 81 (1871) ; Af. Lep., 



p. 8, pl. 6, f. 5, 6 (1873). 

 S. Leone ; Lagos ; Ashanti ; Cameroon ; Togo ; Angola ; 

 Congo (Kassai, Quango, Mukenge, Ubangi, Lufupa R., Aruwimi 

 R.); Uganda (Semliki R., Entebbe, Kampala, Pt Alice, Toro, 



