MasreLL.— On a Parasite of Coccide, 229 
which was frequently seen under the centre of the tests. This object, which 
is shown in the accompanying puts, fig. 1, I took to be the pupa of the male 
Ctenochiton. 
Later on, in September, I found other pups in a more advanced stage, 
for I was able to detach them easily from the test of the scale.. They now 
resembled the pupæ of Eulophus nemati, a common Hymenopterous insect. 
One of them is shown in my fig. 2, where it will be seen that the form of 
the head, with its bars or stripes, and the spurs on the end of the tibia, 
seem to refer the insect to the genera Eulophus or Encyrtus. In Eulophus, 
indeed, the antenns are branched, but this could not be distinguished in 
the pupa stage. 
In October, when searching for more specimens of Ctenochiton in order 
further to examine these pups, I came across a tree, one of the species of 
Olearia, on which I found numbers of them in another condition. The leaves 
of the tree had evidently been pierced by a leaf-mining insect, and were 
covered with the blisters formed by it. Some of these were closed, others 
open; in each of the closed ones I found the remains of the larva of the 
leaf-miner and the pupa of which I was in search. It was quite evident 
that it could not be the pupa of a male Ctenochiton. The blisters, I may 
mention, were on both sides of the leaves; but the orifice by which the 
insect escaped was always on the under side. 
I was able to procure several specimens of this parasitic insect in the 
imago state. 
According to Westwood, there are five families of parasitic Hymenoptera; 
but only one has all the characters of the insect I am describing. In the 
Evaniide the antenne are straight and the wings are veined; in the 
Ichneumonide the same; in the Chalcidide the pupa is naked; in the 
Chrysidide the abdomen is oblong-ovate. There remains only the Procto- 
trupide, and to these I relegate my insect. Of the genera of this family 
Diapria approaches it most, by the form of the wings. The only other 
genus resembling it seems to be Platygaster ; but, according to Westwood, 
the legs in this genus are “not saltatorial,’’ whereas the fly before me 
can leap pretty actively. I may observe that Westwood states that the 
Coccide are much infested by Chalcidideous parasites, of a genus to which 
he gives the name ** Coccophagus,” and which, he says, is intermediate 
between Encyrtus and Eulophus. My insect cannot be this, for the antenne 
have at least 12 joints, against 8 in Coccophagus, and the three terminal 
joints, although soldered together, do not form a club, Again, it cannot be 
Encyrtus, for there is no dilation of the tarsus; hor Eulophus, for the 
antenna are not branched. And the thin covering of the pupa prevents it 
from entering the Chrysidide, 
