26 
CORN. 
figured at p. 23 was very remarkable, and to this I attribute that so 
many of my contributors enquired regarding the attack as being one 
not before observed in the district. In some cases it was only by 
laying the samples received side by side, and opening on from the 
smallest to those sufficiently developed to show the characteristics of 
C/tZcn-ops-infestation, that I was able to make out with certainty the 
cause of the evil. The notes from Prof. M‘Cracken on early sowing 
are a help onwards to prevention, and as we know that in Germany 
the maggot of the winter brood passes the season in the heart of 
the young Corn, we may hope, as the Frit-fly Maggot has now been 
found in its winter habitat, that the Chlorops Maggot, which is 
excessively like it, may also be observed, and give us the long-needed 
clue to better prevention of this long-standing trouble. 
The Hessian Fly. Cecidomyia destructor , Say. 
Cecidomyia destructor. 
Hessian Fly, nat. size and magnified. 
During the past season, as well as in the previous one, very little 
damage has been reported from Hessian Fly attack, but at the same time 
it will be observed, by glancing over the following notes, that in almost 
every instance in which information was sent me of it being observed 
at all, it was very prevalent. 
It will be seen that in one report of the condition of fifty-nine acres 
of Barley, that about every fifth straw was considered to be broken 
down by this attack at about the second joint above the root, but 
amongst the various specimens sent to me, I did not in any case find 
many flax-seeds on a straw, and sometimes only one or two on each 
straw in the whole of the sample sent me by one sender. 
The localities of attack reported to myself were, as before, in the 
more easterly part of England, excepting a note of presence at 
Hastings, and the widespread appearance on the grounds of the 
Royal Agricultural College, Cirencester, and the surrounding neigh¬ 
bourhood. 
On July 7th, Mr. J. Eardley Mason, writing from Alford, Lincoln¬ 
shire, remarked:—“Although the Hessian Fly is so widespread, I do 
