(ie xilvany ) 
Hahibitions. 
Mr. Merrirrecp exhibited specimens of Aporia crategi, the 
pupe of which had been subjected to high and low tempera- 
tures. In the former case the effect was slight, possibly the 
temperature up to 100° F. had not been as high as they 
would bear, in the latter case the spreading and darkening of 
the dark parts were remarkable, especially in the male. He 
also showed some Argynnis paphia from larvee obtained in the 
New Forest, the pup of which had been at high tempera- 
tures, ranging up to 103° F. The males were of a lighter 
colour than the normal ones, and the dark markings were 
considerably reduced in area and intensity ; in both respects 
they very closely resembled some males recently taken in the 
hot Rhone valley, which were exhibited for comparison. On 
the other hand, males, of which the pup had been at 38° F. 
to 51° F., had the dark markings much extended and 
darkened. Some females which had been subjected to 
similar differences of temperature seemed to show slighter 
effects of a similar character, but there was no approach in 
them to the var. valesina. 
Mr. Tutt showed for comparison the extreme forms selected 
from some 500 examples of A. crateyi bred or captured in 
Kent between 1860 and 1868, but none was so marked as 
those shown by Mr. Merrifield, which had been selected from 
19, all that he had:bred. Mr. A. H. Jones exhibited some 
A, paphia from the South of Europe, including some of the 
var. anargyra from Corsica; the underside of some of those 
bred by Mr. Merrifield from heated pup approaches these in 
appearance, 
Mr. Turr showed a remarkable melanic aberration of 
Nemeophila plantayinis bred by Mr. A. Horne, in 1893, from 
one of three larvee found on Scotston Moor, near Aberdeen ; 
the other two moths were normal. Mr. Horne stated that he 
had bred hundreds of specimens from this locality, but had 
never before seen anything approaching the one exhibited. 
The specimen was of a deep solid black, due to the spread of 
the markings ; the forewings were almost entirely black, the 
hindwings quite so. There was a not uncommon form of 
aberration of this species, in which the normally pale parts 
