GOUT FLY ; RIBBON-FOOTED CORN FLY. 
28 
observation:—“I enclose herewith speci¬ 
mens of Barley affected with gout. I 
have often noticed this in Oats, but is it 
not rather new in Barley?” In this 
instance also the ear was very young, 
and gnawed down part of one side, but 
the stem (or rather what would have been 
the stem presently) was not attached, 
apparently from not being enough grown 
to afford material for the purpose. In 
this instance chrysalids were present on 
July 9tli. 
Specimens of Barley attacked by C. 
tamiopus were brought from New House 
Farm, St. Alban’s, by Mr. Dickenson, 
jun. These were much injured, but the 
plant was about half to three-fourths of 
the full growth; and the ear, though 
still quite folded in the sheathing leaves, 
moderately developed, and the furrow of 
the maggot still green, traceable to the 
first knot, just above which, in one in¬ 
stance, I found the maggot living. 
On July 12th, Mr. J. Eardley Mason, 
of the Sycamores, Alford (Lines.), for¬ 
warded me specimens of Chlorops -attacked 
Barley from a field in the neighbourhood, 
with the information that the pest was 
doing appreciable but not serious harm. 
Prof. Allen Harker, writing from the 
Eoyal Agricultural College somewhat later 
on, that is, July 29tli, remarkedBut 
what we have suffered most from has 
been Gout Fly. Various reports given 
me stated 50 per cent, as amount of 
attack, but on specially instructing two 
good students to make a statistical survey 
in various parts of the field, I got as 
probably an accurate return 20 to 25 per 
cent, of this attack.” 
The following account of amount of 
appearance of infestation in coincidence 
with date of sowing, which was sent also 
from the Royal Agricultural College, 
Plant of Barley diseased by 
Gout Fly attack. 
