Note 396 — LETTER XXX.
Reading edition
A remarkable difference obtains between the larva of the wire-worm and that of Elater undulatus. In the former, the last segment is longer than the preceding one, terminating in a small acute mucro at the apex, with a deep cavity, perhaps a spiracle, on each side, at the base. In the latter, this segment is shorter than the preceding one, forming above a nearly circular plate; the margin of which is a little elevated, and armed on each side with three teeth, and at the apex with a pair of furcate recurved horns, and without any basal spiracle. De Geer iv. 156. t. v. f. 25. I have a similar larva, but not the same species.