Garxive ) 
palings, etc.) and all gave out an odour weaker than, but of 
the same character as, that emitted by the perfect insects. 
With respect to the term ‘“‘ homeeochromatism,”’ it had this 
disadvantage, that it was at once too wide and too restricted — 
too wide, because it did not exclude cases of resemblance due 
to mere relationship, and too restricted, because it left out of 
sight the similarity in shape of wings or body, or of move- 
ment and habit which often made up part of a mimetic 
likeness. 
He did not agree with Mr. Rothschild as to the case of 
Papilio merope, considering that cases in which the ? alone 
was exactly modified in imitation of a protected form (or, as 
in the instance under notice, of three or four differing 
protected forms) were, by reason of the extraordinary contrast 
with the unmodified ¢, more striking and unmistakable 
instances of obvious and indisputable mimicry than even 
those in which both sexes were similarly modified. As 
regards the Abyssinian representative of P. merope named 
P. antinorii, which until recently was thought like the 
Madagascar and Comoro representatives (P. meriones and P. 
humbloti) to have the sexes alike, without any mimetic 
modification of the 9, Prof. Kheil had described and figured 
in 1890 two forms of the ? (collected, with seven ¢ ¢ and 
two ¢ ? coloured like the ¢, at Lake Tana by the late Dr. A. 
Stecker) respectively closely imitative of D. chrysippus and 
Amauris niavius, but still retaining the conspicuous tails 
on the hindwings which all the other known forms of ¢ 
of the allied species on the African continent have lost. 
There, it seemed to him, was a most interesting and con- 
clusive case of mimetic modification still actually vw progress, 
the ? usually resembling the ¢ in both colouring and 
pattern as well as in outline of wings, but also presenting 
two other forms, each profoundly modified in simulation of 
a protected Danaine butterfly, yet an incomplete mimicker 
in so far that the tailed outline of the hindwings remained 
unaltered. 
He must admit that the capture by birds of butterflies was 
rare, but he had himself seen birds, especially the Drongo 
shrike, chasing butterflies. 
PROC. ENT. SOC. LOND., Iv., 1897. E 
