. 
RIBBON-FOOTED CORN-FLY. 
specimens, published in the ‘ Entomologist ’ for July, 
1887 (West, Newman & Co., 54, Hatton Garden) ; 
and for accounts of the attacks of Hessian Fly in 
this country, and means of prevention and remedy, 
I may refer to my own Reports on * The Hessian Fly 
in Great Britain, 1886,’ and * The Hessian Fly in 
Great Britain, 1887,’ published by Simpkin, Mar¬ 
shall & Co., Stationers’ Hall Court, London, E.C. 
Ribbon-footed Corn Fly ; “ Gout ” Chlorous 
tceniopus, Curtis. 
During the past season attack of “gout,”—that 
is, of injury caused by the maggot of the Ribbon¬ 
footed Corn Fly,—was not much reported on, and, 
as this attack has been very fully entered on in 
previous years, I merely just mention it now, with a 
figure of an ear and stem of barley showing damage 
caused by the maggot, and a short description of the 
nature of the attack. 
The fly (see figure in previous Reports)* is a 
thick-made, small, two-winged fly, black and yellow 
in colour, the body between the wings being very 
observably striped lengthways with black on a yellow 
ground. 
The fly lays her eggs whilst the young Barley- 
plant, in early summer, is still young and tender, 
and the maggot hatching out of the egg attacks the 
forming ear at the base, or more or less above it, and 
then gnaws its way down one side of the stem within 
the sheath down to the uppermost knot. The con¬ 
sequence of this is that part of the ear is injured, and 
the stem often so checked in its growth that it is 
dwarfed, and also the ear is unable to free itself from 
the sheath, and the plant altogether acquires a 
swollen, unnatural form; whence the name of 
“ gout ” has been given to the attack. 
The figure shows a common amount of injury, in 
which the ear is a little damaged and the stem 
(which is sketched with the sheath torn away so as 
to show the black furrow gnawed down it by the 
maggot) is a little distorted. 
58 
Stem of Barley at¬ 
tacked by Chlorops. 
* See Ninth and Eleventh Reports on Injurious Insects. 
