18 
CORN. 
i 
conditions, and gives a very accurate idea of the elongated appearance 
of the grub. 
SlTONA LINEATA. 
Pea and Clover Weevil, grub, and chrysalis; all nat. size and magnified. 
In this case some of the Weevil-grubs were found lying along the 
main root, which bore marks of channels having been eaten along it, 
but, for the most part, the soft gall-like growths appeared preferred as 
food. As the early stages of the Sitona Weevils had not been recorded, 
as far as I am aware, up to the date named, I then in my Report for 
1882 entered on the subject in detail, and now only repeat some 
portion, as it is of interest to be able to compare the different methods 
of attack to Clover-root, which I have received specimens of during 
the last season, in consecutive pages. 
CORN. 
Frit-fly. Oscinis frit, L. (? Oscinis vastator, Curtis). 
The only notice which has been sent me during the past season of 
the decided presence of Frit-fly attack (which, it will be remembered, 
caused much harm to young Oat-plants in Cornwall and Devon, and at a 
few other localities, in the early part of the summer of 1888) was sent me 
by Prof. Wm. M‘Cracken, of the Royal Agricultural College, Ciren¬ 
cester ; but whilst this paper was being written, I have received 
specimens of young infested winter Oat-plants, which may prove of 
much use in giving a clue to the winter habitat of this attack. 
The Frit-fly is a small, black, shining, two-winged fly, and the 
mischief that it gives rise to notably in this country, is by reason of 
its small, whitish, legless maggots feeding in the heart of young Oat- 
plants, and so destroying the central shoot. With us it noticeably 
avoided Barley, but in continental returns it is recorded as infesting 
Barley as well as Oats, and in summer as being found in Meadow- 
grasses, and as infesting the ears of Barley and of Oats also. 
