. The Canadian naturalist and geologist. Natural history -- Periodicals. The Enemies of the Wheat Fly, 455 introduced its aculeus, I could find neither egg nor larva of the Ti2'>ula; but, upon examining it very closely under three glasses, I discovered, scattered over one of the valvules of the corolla, a number of globular eggs extremely minute, evidently not those of that insect. It is possible that there were in this floret eggs of the latter, which might be destroyed upon opening it, or escape my observation. At other times I have found eggs of the T'lpula Tritici, and once some larvae,
. The Canadian naturalist and geologist. Natural history -- Periodicals. The Enemies of the Wheat Fly, 455 introduced its aculeus, I could find neither egg nor larva of the Ti2'>ula; but, upon examining it very closely under three glasses, I discovered, scattered over one of the valvules of the corolla, a number of globular eggs extremely minute, evidently not those of that insect. It is possible that there were in this floret eggs of the latter, which might be destroyed upon opening it, or escape my observation. At other times I have found eggs of the T'lpula Tritici, and once some larvae, in florets upon which I had observed this Ichneumon ; " From the time in which it first makes its appearance, ten days before the hatching of the first larvae, I I am inclined to adopt my original conjecture, that the eggs are its prey ; and yet there seems not to be a sufficient disproportion between the size of the one and the other for this purpose; at least, it must take more than one to nourish a larva of the Ichneu- mon to its proper size.'* " 2. Platygaster? inserens. Kirhy. Very black; antennae clubbed ; abdomen lance-shaped, shin- ing :"f fig. 2 ; e, the natural size.—Female^ body very black; antennae bent, as if broken, and club- bed ; basal joint long, stout, rigid, and clavate reverse heart-shaped, cleft at the apex viewed la- 2 Platygaster terally ; second joint stout, oval, 4 following glo- inserens. bular and extremely minute, the remainder form- infT a compact ovate conic club of 4 joints (fig. d): head and tho- rax somewhat dull in surface : abdomen sessile, lanceolate, exces- sively black and glossy, very acute, furnished with a very long flexile slender ovipositor, which is exserted (fig. c) ; wings trans- parent, nerveless, longer than the body; superior with a black line leading from the base towards the middle terminated by a black dot: legs blackish ; thighs deep black, somewhat clavate ; length less than a line. " The thi
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