14 THE ENTOMOLOGIST. 
V. urtice which were entirely covered with gold, and not merely 
with gold spots, as in England. The ground colour was greenish 
yellow, and the whole pupa was semitransparent, until a day or 
two before the imago came out. I brought some larve from the 
same place, and kept them in a tin box without much light, and 
they became dark brown speckled pup, without any gold at all. 
The imagines from the gold pupe were lighter coloured than 
those from the brown ones. A week earlier I found at the 
Engstlen Alp, near Engelberg, some V. urtice pupe, which 
were not quite the same colour as English ones, but had the 
ordinary gold spots. From the same bed of nettles I took some 
larve, and kept them in the tin box, and they turned into pupe 
without any gold. I found these at the Engstlen Alp after some 
days of very wet, dull weather ; but when I found the gold pup 
at the Bel Alp the sun had shone moderately for several days. I 
am curious to know if the amount of gold on pupe is affected by 
different degrees of light, or if any other cause is known for the 
variation.—M. S. Jenxyns; Riverside, Kast Moseley, Oct., 1882. 
[There is considerable variation in the metallic lustre and 
coloration of the chrysalids of Vanessa urtice in England, and the 
chrysalids of other butterflies have been observed to be affected 
by their environment.—J. J. W.] 
Foop or Mrrirza Aarremis.— I have had seven larve of 
M. artemis this year. They all declined to eat germander, or 
either the broad or narrow-leaved plantain, but ate honeysuckle 
leaves greedily, both the wild and Lonicera fragrantissima.—M. 8. 
JENKYNS; East Molesey, Nov., 1882. 
PECULIAR ODOUR EMITTED BY ACHERONTIA ATROPOS. — Has 
anybody noticed the remarkable odour sent forth by A. atropos 
when handled in the imago state ? I have had a good opportunity 
of observing the insect lately, as it has been commoner than 
usual, three or four being taken on the same evening. As I had 
some brought to mein a very bad condition, I kept them alive 
for some days in order to witness their peculiarity of stridulation. 
Although I believe the exact manner in which this sound is 
produced has never been satisfactorily discovered, it is too well- 
known to need comment, but I find that upon pressing the sides 
of the thorax it also emits a peculiar odour, resembling 
musk more than anything else; this occurred with all the 
