292 ; Transactions.— Zoology. 
I have also one or two slight errors to correct as to the Coccidw. In 
Ctenochiton spinosus the upper digitules are not, as I stated, short; they are 
long, fine, knobbed hairs. In Acanthococcus multispinus and in Dactylopius 
glaucus the lower digitules are broad, as in Lecanium. 
Further, the insect described by me last year under the name Diaspis 
gigas, is not, as I think now, a Diaspis, but belongs to the genus Fiorinia, 
Targioni-Tozzetti, where the pellicle of the second stage almost fills the 
puparium. I, therefore, as the insect appears to be new, name it Fiorinia 
astelia, 
Before hoig to describe the new species which I have obtained, I 
. may mention that Lecanium hesperidum seemis to be doing less damage— 
about Christehurch at least—than formerly. Many of the plants and hedges 
which I have seen nearly destroyed by this insect, are now in much better 
eondition. In Europe and elsewhere the ravages of this insect appear to 
have been intermittent, and there is no reason why the same should not be 
the case here. Possibly the dry seasons which we have been guisa under 
lately may have something to do with this. 
Mytilaspis pomorum, on the other hand, is increasing in numbers and 
destructiveness. I know of scarcely a fruit tree in our orchards (except the 
cherry) which is not every year being more and more covered with this seale; | 
and the quickset hedges are as much troubled with it as with the saw-fly larva 
inautumn. Minute as the apple-scale is, its immense numbers must seriously 
weaken and damage the trees ; and I recommend owners of orchards to employ 
the remedy suggested in my former paper, namely, to paint over their trees in 
winter with a mixture of two-thirds linseed oil to one-third kerosene. This 
has, to my knowledge, succeeded admirably in instances where it has been 
tried, as the oil insinuates itself between the bark of the tree and the 
puparium of the insect, and so envelopes the eggs and the young that they 
eannot get out, and so die. Care should, however, I believe, be taken to 
perform this work only at the dead of winter, when the sap is not rising, 
and when the tree is, so to speak, asleep. 
I proceed now to the description of my new species. 
1. Mytilaspis phymatodidis, sp. nov. 
Plate VIL, fig. 1, abdomen. 
General appearance resembling M. pomorum, but the puparium is 
broader, as in M. pyriformis. 'The abdomen ends with a deepish median 
depression, as in Diaspis rose. There are several scaly processes on the 
terminal lobes, and a good many spiny hairs on the sides of the body. The 
usual five groups of spinnerets, and many single ones scattered on corruga- 
lions of the body. 
I have not seen the male, 
