704 Dr. G. D. H. Carpenter on the 



the former, three larvae of identically the same appear- 

 ance as recorded above. These pupated almost immedi- 

 ately, and the pupae also corresponded with the above 

 description. I naturally concluded they also were PI. maca- 

 rista; and when the imagines emerged on Oct. 18th, and 

 showed the orange band on the forewings and white on the 

 hindwings, I concluded they were all males, and put them 

 away without a careful examination. They were sent to 

 Prof. Poulton in due course, who, to my great interest 

 and astonishment, pronounced them to be two males and 

 a female of Planema jJoggei, Dewitz., and not PL macarista. 



At the beginning of 1912 I moved to Bugalla Island, 

 forming one of the Sesse group in the N.W. corner of the 

 Victoria Nyanza. 



In April I found in the forest a larva which exactly 

 corresponded with the description previously given, — 

 claret-coloured with head, spines and legs black. It 

 pupated on April 19th. I carefully looked at the pupa, 

 and saw no difference in it from those of PL macarista an(l 

 poggei. However, when the imago came out on May 1st, 

 it was neither macarista nor jMggei, but PL arenaria, E. M. 

 Sharpe. I have since reared other specimens of this 

 species from larvae found in the forest. 



Here, tiien, we have larvae and pupae of three common 

 and very conspicuous Planemas so closely resembling 

 each other that I have not been able to distinguish any 

 difference ; though I have not had specimens of each to 

 compare side by side. 



July, 1912. 



Note. — Later in the year Dr. Carpenter sent spirit 

 specimens of some of the species referred to above. Con- 

 cerning the larvae and pupae of PL arenctria he wrote 

 Nov. 26, 1912:— 



" The very young larvae are dull green with black 

 anterior segments. After the first ecdysis the black 

 becomes claret colour, and the green a sort of vague 

 dull pink, which gradually becomes darker owing to the 

 anterior claret tint spreading backwards, until the whole 

 larva is of that tint. Its colour is then indistinguishable 

 from that of macar^ista ox jyoggci. Inasmuch as the larva 

 of macarista is from birth onwards always the same, I 

 think the facts show that the arenaria larva mimics that 



