MRT, NOK | Cb age) 
repose, he might add the testimony of Mr. R. M. Christy, who 
observed a black and yellow Papilio choosing, after much 
fluttering, to settle on a twig of Betula glandulosa bearing 
withered leaves of a similar yellow colour. (Proc. Ent. Soc. 
Lond., 1885, p. ix.) There were some interesting records by 
Captain Clements, R.A.M.C., who observed that ‘* Papilio 
merope d almost invariably selects a broad-bladed grass, 
striped with brown and yellow, and, hanging pendent from 
its extremity with the wings folded, the upper ones being 
covered over and concealed by the lower, it cannot be seen 
until it is again startled into flight. Another butterfly, in this 
case the female, which selects a resting-place which effectually 
conceals it, is Catopsilia florella ; this yellow insect has small 
round silvery spots surrounded by a narrow brown margin on 
its wings. When near a mango-tree, of which some few of 
the leaves are of a bright yellow colour, dotted with spots 
identical in colour, shape, and disposition with those above 
described, it invariably selects these leaves for settling on, and 
is then very difficult to detect.” (“Ona Collection of Sierra 
Leone Lepidoptera,” by W. Schaus and W. G. Clements, Lon- 
don, 1893.) The last observation, he thought, afforded a very 
complete parallel with the case of Hronia cleodora; and the 
evidence collected from so many quarters appeared to be con- 
clusive as to the prevalence, throughout a wide range of 
species, of this habit or faculty of selection. 
The Prestpent, Mr. H. Rowianp-Brown, Mr. G. C. CHAm- 
pron and other Fellows joined in the discussion. 
Wednesday, March 21st, 1906. 
Dr. Dixry exhibited male and female examples of Pierines 
belonging to the genus Hronia with the closely-allied genera 
(or subgenera) Vepheronia and Leuceronia. He drew attention 
to the great diversity of aspect that obtained between different 
members of this group, especially the females, and showed that 
in many instances this was due to the fact that one or both 
sexes of the Hronia had been assimilated in aspect to a form 
or group of forms either known or suspected to be distasteful. 
