15 
mens show a reduction of the orange spot on the disc of the fore¬ 
wings. This resembles var. farinosa and var. nepalensis. Pyrameis 
at a l ant a. (1) The pupae of the first batch were subjected to high 
temperature. The result is a broadening of the scarlet band, which 
is also very bright in tint; whilst scarlet clouds and patches appear 
on parts of the wing, ordinarily black. On the underside the forced 
specimens are seen to have somewhat pale areas. On the costa and 
outer margin of the hind-wings, these pallid areas are much increased 
in the imagines from cooled pupae. (2) The pupae of the second lot, which 
I have sent for comparison, were subjected to low temperature. These 
have the scarlet band narrowed, and broken by dark nervures ; they are 
also of a much duller tint, whilst the white markings are much increased. 
Aglais uimcvE. (1) Some specimens of true A. urticae var. ichnusa, 
from Southern Europe, of an exceedingly bright hue, but with the three 
well-developed discal spots of the type obsolete. An ordinary British 
specimen of the same species, for comparison. (2) Specimens bred 
from English pupae, which have been subjected to high temperature. 
These exhibit a tendency (a) for the three (discal) spots to disappear ; 
(h) for the colour to become brick-red and increase its area, especially 
near base of hind-wings ; (c) for the outer border to become narrow, 
tapering towards the anal angle of the fore-wings; (cl) to light colour of 
outer border; ( e ) for the wings to be less angulated. (8) Some ex¬ 
amples, the pupae of which were exposed to low temperatures, for 
comparison. These are also British examples, part from a brood of 
ordinary English specimens; but one or two, probably Scotch, from 
a brood slightly darker than ordinary English specimens. It will be 
observed that these are all very dark, the area of the red colour very 
much restricted, and the discal spots much increased in size. It will 
be observed that the high temperature specimens show some approach 
to var. ichnusa, although not exactly the same. The low temperature 
examples show some approach to var. polaris. Euvanessa antiopa. 
(1) Normal form. (2) Specimens from pupae exposed to low tempera¬ 
ture. These exhibit a narrowing of the pale border, a darkening of the 
border by the increase in the number of minute black dots, an increase 
in the size of the blue spots.” 
Mr. D. C. Bate read the following notes on the Larva of Orgyua 
antiqua. This larva (which at hatching is, as far as I can see, 
indistinguishable from either Psilura monacha or Ocneria dispar), at 
its first change of skin develops the four paint-brush tufts of hair on 
its back, but all black ; the tail tuft is very small and indistinct, as 
also are the “ ear tufts.” At the second change the paint-brush 
tufts are the first two, black, and the second two, white ; whilst at the 
third change the whole are white tipped with pink. At the second 
change the tail- and ear-tufts are fully developed. I show these three 
stages ; but all my larvae having passed the first, I am unable to show 
that stage. 
Messrs. Bacot, Nicholson and Bayne exhibited their series of the 
genus Hibernia to illustrate a paper on that group, read by the latter 
gentleman. Mr. Tutt directed the members’ attention to the fact, 
that the hybernating stage was certainly known in the case of every 
British species of butterfly', Yvith the exception of Lycaena anon 
and Thymelicus thaumas, which he, therefore, recommended to 
