( XV ) 
and the two deceptor on the 21st, and the viima between that 
date and the 26th. 
The results were as follows, viz.— 
(a) Fi’om 10 ova laid by one wahlbergi were bi’ed 4 wcMhergi 
(2 c?, 1 $ , 1 deformed, sex undetermined), and 5 niima 
{4: 6 6,1 9)- 
(h) From 39 ova laid by one mima were bred 33 mima 
(24 6 6,^ 9 9)- 
(c) From 139 ova laid by two deceptor were bred 127 
decepto^' (70 6 6,57 9 $ )• 
Experiment (a) proves the species-identity of wahlbergi and 
mima ; while experiment {b) seems to indicate the probable 
predominance—as in the case of the $ forms of Papilio 
dardanios, sub sp. cenea —of the models Amaitris echeria and 
albimacidata in affecting the mimetic pattern and colouring. 
Experiment (c) affords no evidence of deceptor belonging to 
the same species as the other two forms, all the bred examples 
of both sexes being recorded by Mr. Millar as true to type. 
The case of Euralia ivahlbergi and mima is in agreement 
with that of Charaxes zoolina and neanthes* as regards the 
dimorphism including both sexes; but there is a striking 
difference to be observed, in that the double mimicry so 
highly developed in both sexes of the Euralia finds no place 
in the Charaxes, whose colouring in both forms, but especially 
in neanthes, is by no means conspicuous and on the under-side 
apparently cryptic. 
Mr. Millar has furnished photographs of the three sets of 
Euralia progeny bred by him, with many most valuable details 
as to transformations, etc., and also a selection of specimens 
of the larvae, pupae, and imagines. With all these data I 
propose to deal fully in a later communication to the Society.t 
* See Mr. G. F. Leigli’s interesting account (Proc. Ent. Soc. Lond. for 
21st October, 1908, p. Ixiv, and 6th October, 1909, p. xlix) of his experi¬ 
mental breeding of these forms from the ova. 
t Since the meeting on 2nd inst., I have received from Mr. A. D. Millar 
the result of a second experiment in breeding from tbe ova of the mima 
form, ditfering remarkably from that of the first (b) described above. From 
a ? mima’s 11 ova, laid on 21st November, 1909, were bred 8 mima 
(5 8 8,3? 9 ) and 3 wahlbergi (8 8 ). This rounds off the case very 
satisfactorily. As in result (a), the toahlbergi and mima of this last family 
are respectively all true to type, and not one example is at all intermediate 
between the two forms.— R. Trimen, March 15, 1910. 
