EGGS OF THE HESSIAN FLY. 
573 
specks. Mj own mind being thus completely and fully 
satisfied as to the mode in which the egg was deposited, 
I proceeded directly to my dwelling, and put the plant 
with the. eggs upon it in a large glass tumbler, adding a 
little water to the earth, and secured the vessel by cover¬ 
ing it with paper, so that no insect could get access to 
the interior. The paper was sufficiently perforated with 
pin-holes for the admission of air. The tumbler Avith its 
contents Avas daily Avatched by myself to discoA^er the hatch¬ 
ing of the eggs. About the middle of the fifteenth day 
from the deposit of the eggs, I AA^as so fortunate as to dis¬ 
cover a A^ery small maggot or AA'orm, of a reddish cast, 
making its AA^ay Avith considerable actiAuty doAvn the blade, 
and saAA' it till it disappeared betAveen the blade and stem 
of the plant. This, I haA^e no doubt, AA^as the produce of 
one of the eggs, and AAmuld, I presume, have hatched 
much sooner, had the plant remained in the field. It AA^as 
my intention to haA^e carried on the experiment, by endeav- 
orino; to hatch out the insect from the flax-seed state into 
the perfect fly again; hut being called from home, the plant 
Avas suffered to perish. The fly that I caught on the hlade 
of the AAdieat, as above stated, I enclosed in a letter to Mr. 
John S. Skinner, the editor of ‘ The American Farmer,’ of 
Baltimore, aaAio pronounced it to be a genuine Hessian fly, 
and identical in appearance AA’ith others recently received 
from Virginia.” 
Dr. Chapman agrees Avith this Avriter in saying, that the 
Hessian fly lays her eggs in the small creases of the young 
leaves of the AAdieat. jMr. HaA^ens states, that the fly lays 
her eggs on the leaves. In the fortieth number of “The 
Connecticut Farmer’s Gazette,” Mr. Herrick says: “I haA^e 
repeatedly, both in autumn and in spring, seen the Hessian 
fly in the act of depositing eggs on AAdieat, and have ahvays 
found that she selects for this purpose the leaA^es of the 
young plant. The eggs are laid in A^arious numbers on 
the upper surface of the strap-shaped portion (or blade) 
