198 
THE 
CANADIAN 
NATURALIST 
frequent amongst the bushes. I think there is no insect more 
elegant than this : the large wings so filmy and transparent, 
the delicate network tracery of the green nervures, and the 
graceful manner in which they close, the slender body, and 
the golden prominent eyes, are, I think, unrivalled. It is a 
pity that it gives out so disgusting an odour when handled. 
F, — Have you ever observed the remarkable appearance 
presented by the eggs of this fly ? Each one is elevated on 
a slender footstalk, as a flower grows on its stem, the lower 
end being attached to a leaf, or other substance. As they 
are often arranged in regular rows, and all of one length and 
thickness, they look very curious, and would hardly be sus- 
pected to be the eggs of an insect ; they look somewhat like 
the capsules of some mosses. — A fine Hymenopterous 
fly, the White-bodied Cimbex ( Cimbex 1 Q-maculata ) was 
lately evolved from pupa in my box : the larva of which, 
with some others, I took from willows in August last : it 
was pale green, with a blue band down the back. The per- 
fect insect is not so large as a specimen I obtained in New- 
foundland. The common Downy Cimbex ( Cimbex Syhor 
tica ) is becoming numerous : I perceive these flies are the 
same dull heavy creatures here as they are in that island, 
where I first became acquainted with them. 
C. — Here is a large two-winged fly, crawling among the 
grass, which appears almost helpless and unable to use its 
wings : what is it ? 
JP. — It is Coenomyia Pallida: I took one on the 13th of 
June, 1836, and another on the very same day the next 
year ; this makes the third. They were all amongst the 
grass : one of them was in the act of emerging from the pupa . 
when I took it : I have the pupa-skin still ; it is large, and 
the hind segments have rings of spines ; its colour is chestnut 
brown, and it much resembles that of a large moth. I have 
no doubt it is subterraneous in the pupa state. They all ap- 
