The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 260
, is this:—there is a remarkable instinct, possessed not only by these fruitparasites, but also by the larvae of the /chneumonidse, which areparasitic upon other insects, whereby they are directed to leaveuntouched the vital part of their prey till the last. It is onlyupon the fatty parts of a… … the apple moth feeds during the greater part of its growth:when, however, it has nearly attained its full size, it begins tofeed on the pips of the apple, which, thus attacked in its mostvital part, soon falls to the ground. The caterpillar, however,has now ceased feeding : it has other operations…