(B®) Esc Heese 
He believed the association to be in most cases synaposematic 
(Miillerian) rather than pseudaposematic (Batesian); but it 
was perhaps possible that in Hronia leda, which possessed a 
cryptic under-side, we had a case of true mimicry. Lronta 
cleodora, Hiibn., which was more closely related to E£. leda 
than were any of the forms shown, was not a mimic ; its sexes 
were similar to each other, and both male and female appeared 
to trust for protection to their cryptic under surface. The 
same was probably the case with the female of #. leda, which 
also seemed not to be a mimic; but the male in this instance, 
though to some extent cryptic beneath, was an excellent copy 
of another Pierine, viz. Zeracolus auxo, Luc., or of its northern 
form 7. incretus, Butl. On these grounds the presumption was 
that both #. cleodora and its congener H. leda were less 
distasteful than other members of the Hronia group, and it 
seemed therefore possible that the mimicry by Z. leda ¢ was 
Batesian, the female finding perhaps a more effective defence 
in the cryptic colouring of its under surface. In the remaining 
cases there was less reason to presume edibility, and the females 
had become powerfully affected by other protected forms of 
various affinities. 
With respect to some of the ‘‘ models,” the evidence of the 
distasteful quality of the groups represented by Z%rumala 
limniace and the two species of Mylothris was generally 
admitted to be strong. There appeared to be no direct 
evidence as to Vychitona medusa, but it had the habits of a 
protected form; while Huphina phryne (nerissa) was found 
by Mr. Finn, as a result of many experiments, to be disliked 
by several insectivorous birds. 
The species shown were as follows, a specimen of the 
“model”? being in each case placed beside the form which 
resembled it :— 
Nepheronia hippia, Fabr., associated with Tiruwmala limniace, Cram. 
N. avatar, Moore, - Huphina, nerissa, Fabr. 
Leuceronia thalassina, Boisd., ,, Mylothris spica, Mosch. ¢ . 
(2 with brown upper wings.) 
L. argia, Fabr., ro M. riippellii, Koch ¢. 
L. pharis, Boisd., = Nychitona medusa, Cram. 
Eronia leda, Boisd., es Teracolus incretus, Butl. 
