34 
COEN AND GKASS. 
so I suppose frost prevents them from maturing, or makes the ground 
too hard for them to travel through.” 
I am not able to identify the species of the two-winged Fly to 
which this maggot turns, with certainty; but by comparison with 
specimens from another locality, I believe it to be one of the largest 
kinds of Sciara, of which one species is figured above. 
The grubs of these Flies live mainly on vegetable matter, and are 
to be found, amongst other places, at decayed roots of vegetables, and 
also in some instances amongst old perishing stems, and have been 
fpund feeding there on the remains of gnawed rubbish abandoned by 
other insects ; but they are also to be found in putrid matter of various 
kinds, and in clung. 
From these notes of their habits, and the observations given of the 
grubs being found in Wheat after Clover lea,—and “ very much in 
the lumps of Clover which have been buried,”—they appear to be 
exceedingly like the Daddy Longlegs grubs in their habits and nature, 
excepting that they are so tender that they can be easily crushed. 
Probably the same measures of prevention would serve, and as the 
Sciara are particularly attracted to putrescence and perishing rubbish, 
thorough dressings of hot lime (or gas-lime in autumn, where the 
course of operations allowed of the application) could not fail to be 
of service. 
Further notes as to this little Fly would be very desirable, 
in order to complete its history and identify the species. 
Wheat Midge ; Red Maggot. Cecidomyia tritici, Kirby. 
Cecidomyia tritici. 
1-6, larvie, nat. size and magnified; 7 and 8, part of horns, magnified; 
9 and 10, Wheat Midge, nat. size and mag.; infested floret. 
I am favoured with the following notes regarding the Wheat Midge, 
by Mr. Russell Swanwick, from the Royal Agricultural College Farm, 
Cirencester;— 
