Note 343 — LETTER VI.

This Aphis is evidently the insect described in Illiger's Magazin, i. 450. under the name of A. lanigera, as having done great injury to the apple-trees in the neighbourhood of Bremen in 1801. That it is an Aphis and no Coccus is clear from its oral rostrum and the wings of the male, of which Sir Joseph Banks possesses an admirable drawing by Mr. Bauer. On this Aphis see Forsyth, 265; Monthly Mag. xxxii. 320; and also for August 1811; and Sir Joseph Banks in the Horticultural Society's Transactions, ii. 162. Those Aphides that transpire a cottony excretion are now considered as belonging to a distinct genus, under the name of Myzoxyla.