Note 310 — LETTER XXX.
Reading edition
De Geer ii. t. xl. f. 15, 16. Bergman has added to these four classes of the larvæ of saw-flies, a fifth; the insects belonging to which, he affirms, though they have sixteen prolegs, are without the anal pair. Ibid. 931. But as neither De Geer nor Reaumur ever met with one of this description, it is probable he was mistaken. Reaumur thought he had seen one with eighteen prolegs upon Erysimum alliaria (v. 91), but he does not speak positively.