[Aug 
Whole upper part of the body and appendages had turned very dark brown, whr 
the abdomen retained its dull tile-red hue; the tips of the leg-sheaths were standil 
clear of the body, which latter had become somewhat contracted, the wingar 
feeler-cases were still lying closely along the body. 
The mature pupa forces its way straight up the bract of the leaves, and wM^ 
the imago has escaped, the white transparent pupal skinis left protruding from^ 
ga 1. The empty pupa displays the feeler-sheaths detached from the head *: 
nnhke a pair of curved horns. ' 
The imago seems to belong to the sub-genus Cecidomyia of Loew and t 
neuration of its wings would place it between Cec. rosaria, Loew, and C. npdfe' 
Schrank, according to Winnertz's figures (Linna^a, vol. viii, tab. 2 fig 1 and 2) •■ 
Specimens bred in captivity and kept on yew branches lived only two^b 
three days. 
On the 6th instant I observed the larvae of an ichneumonideous insect encasi! 
withm a full-grown larva of this Cecido.nyia, leaving only the last three segment 
of the latter free. Notwithstanding the presence of this parasite, the Cecidomyia' 
larva had strength enough to assume the outward guise of the pupa ; but scarce- 
had this been accomplished, when the full-fed inmate made its exit through a 
opemug between the thorax and abdomen, leaving its victim to perish.-ALBO 
MULIER, South Norwood, S.E., June 16th, 1869. 
Note on the larva of Lyccena Arion.-J have this year succeeded in rearing thi 
larvaof il/ccna ^Won, which I think is as yet undescribed. I watched the butterfly 
at last, and saw it depositing ova with a business-like sort of flight, one at a tim,- 
on the blossoms of the wild thyme. Seizing upon the plants, I soon discovered wha^ 
the ova were like, and within a few hours collected about 100 of them. The ovuB 
IS like that of all butterfly ova, of an oblong shape, but not always deposited il 
a standing position. It has no ribs, and is either yellow-orange or white (similar f 
hose producing Cardamines). The larva emerged within a week, to the hour, aii« 
led up pretty rapidly. 
Itisonisciform, and slightly flattened on the sides, the back bein.. rathe:! 
convex Head very small, black or blackish-brown. Body greenish, th^e dorsa. 
and sub-dorsal lines represented by a row of three black spots on the middle o< 
each segment. Legs almost imperceptible. Feeds exposed on flowers of Thymu,: 
serpyllum. Having taken all possible precaution towards the rearing of the insecfe' 
I shall be most happy to give any further particulars._E. Dembski, Cheltenhaj 
College, July 11th, 1869. 1 
Are LyccBua Medon and AHaxer.es distinct species r-The question as to the) 
relationship between Lye. Medon and Artaxer.es, which Professor Zeller is eJ 
deavounng to solve, opens up the larger one-What evidence ought to be taken a*^ 
proving two or more forms to be varieties of one species ? Can there be any butJ 
that of the one having been reared from the eggs of the other? Of course e^^s of' 
a variety might produce other forms not obtainable direct from the type. Inter-) 
mediate forms, and even similarity of larv., are not conclusive, and only Justify ua.' 
m saying probable varieties." I use the term varieties in the restricted meaning] 
