No. 150.] 373 
Wheat can scarcely be grown except upon a fertile soil in those 
districts where this insect is abundant. The sowing should be de¬ 
ferred until about the last of September, the season then being past, 
when the fly usually deposites its eggs. If at any time in autumn 
the eggs of the insect are observed to be profusely deposited upon 
the leaves, the crop should be speedily grazed down by sheep and 
other stock, or if this cannot be done, a heavy roller should be pass¬ 
ed over it, that as many of the eggs as possible may be crushed or 
dislodged thereby. One or the other of the same measures should 
also be resorted to in the spring, if the same contingency occurs ; 
or if the worms are at a later date discovered to be numerous at the 
first and second joints of the young stalks, the experiment may be 
tried of mowing as close down as possible, the most infested por¬ 
tion of the field. Where the soil is of but medium fertility, a re¬ 
sort to some of the hardier varieties of wheat, which are known to 
be in a measure fly proof, may be advisable. 
Fitch's Point , Salem , JV. F., April, 1847. 
Note .—Since our preceding essay, upon the Cecidomyia tritici, was published, hav¬ 
ing had an opportunity of porusing the original artioles of Mr. Kirby upon that spe- 
oies, wo find that he both figures and describes the joints of its antennas as “ modio 
constrict io.” It is singular that this most important distinctive mark has been so 
misstated in the descriptions of that species which have been republished upon this 
side of the Atlantic, and also in Turton’s edition of the System of Nature. From 
the remarks introduc.tory to our “ Description,” some might perhaps infer that this 
error arose with the founder of the species. We hasten, therefore, to obviate any 
such impression. 
