28 
CORN AND GRASS. 
matter for report, as leading to a knowledge of points at which to look 
for attack. 
The following note refers to the first observation by Mr. Hart of 
the attack in the field of the Midge Maggots, of which further details 
are afterwards given. 
“ Yellow Maggot. —On July 30th, when inspecting a piece of Wheat, 
I removed a set each from three different ears, and examined the con¬ 
tents of the chaff. In place of the clevel was thirteen, ten, and 
twenty-seven Eed Maggots. I had noticed the presence of maggot a 
week or ten days before, but had no time then to examine the ears 
carefully. On the above date, and subsequently, I found that, as a 
rule, only one set in each ear was attacked; when more than one the 
number of maggots in each set was smaller. This Wheat, the produce . 
of 61 acres, was threshed Sept. 8th, and yielded 29 qrs. of clean grain. 
On the under side of the threshing machine was a fine sieve, which 
screened small seeds from the grain as it passed over it. Beneath this 
sieve about half a bushel of almost pure maggots were caught, besides 
what were blown out and were separated with dust from the chaff at 
another place. Of this dust, &c., some fifteen or twenty bushels were 
collected and burned, and the proportion of animal matter contained 
in it was so great that not till the third day could we get it all 
consumed. Another indication of the large quantity of maggots 
there must have been in it was the terrible stench that arose from the 
burning mass.” 
On the 9th of September Mr. Hart forwarded a packet of Wheat 
threshings swarming with bunches of Wheat Midge maggots, with the 
following remarks:— 
“ I send you a sample taken from beneath the machine with which 
we have threshed some Essex Wonder Wheat. This year I have tried 
the above variety of brown or red Wheat for the first time, and I 
never had a worse attack of Red Maggot in any kind. A piece of 
Golden Drop in another field hard by is comparatively free from Red 
Maggot. I have given instructions for all the dust that falls beneath 
the machine to be burned. You will observe in the sample sent 
another larva larger and more amply coloured than the Red Maggot. 
This is a stranger to me.” 
This larger and redder maggot corresponded with the description 
of the maggot of the Barley Midge, Cecidomyia (Tipula) cerealis of 
Sauter. It was about four times as large as the Wheat Midge maggots 
sent accompanying, and of a full red ; a vermilion, or red-lead colour. 
It was distinguishable microscopically from the common Red Maggot 
of the Wheat by the shape of the “ anchor process.” This is a 
minute process attached, pointing forward, to the under side of the 
maggot a little behind the head. The form varies in different kinds 
