TRANSACTIONS 
OF THE 
ENTOMOLOGICAL SOCIETY 
OF 
LONDON 
For, THE YVrar 1911. 
I. On the Forms and Geographical Distribution of Acraea 
lycoa, Godt. and Acraea johnstoni, Godm. By 
Harry Evrrincuam, M.A., F.ZS. 
[Read June 1st, 1910. ] 
Puates I, II. 
AT a meeting of this Society on June 6th, 1906, a paper 
was read by Professor Poulton, in part dealing with the 
mimetic forms of Acraea johnstoni, Godm.* In this paper 
the author sought to show that judging from the outward 
characteristics, Acraca lycoa of West Africa gradually 
merged by intermediate gradations into Acraea johnstone 
of the east and south, the subject being considered with 
special reference to the remarkable series of mimetic 
modifications presented by the latter species. The final 
conclusion then attained emphasised the extreme proba- 
bility that the whole series of forms then associated under 
the names of A. johnstoni, A. proteina, etc., must be 
regarded as specifically identical with Acraea lycoa. 
In order that the true affinities of this complicated 
association may be more accurately established, I have, 
at Professor Poulton’s suggestion, undertaken a micro- 
scopical examination of the minute structure of the forms. 
I have examined the whole of the material in the Hope 
* “Mimetic Forms of Papilio dardanus (merope) and Acraea 
johnstoni,” E. B. Poulton. Trans. Ent. Soc., p. 281 et seq., 1906. 
TRANS. ENT. SOC. LOND. 1911.—PART I. (MAY) B 
