Published by Longman & Co. London, July, 1825.
AN
INTRODUCTION
TO
ENTOMOLOGY:
OR
ELEMENTS
OF THE
NATURAL HISTORY OF INSECTS:
WITH PLATES.
By WILLIAM KIRBY, M.A. F.R. and L.S.
RECTOR OF BARHAM,
AND
WILLIAM SPENCE, Esq. F.L.S.
VOL. III.
LONDON:
PRINTED FOR
LONGMAN, REES, ORME, BROWN, AND GREEN,
PATERNOSTER ROW.
1826.
PRINTED BY RICHARD TAYLOR,
SHOE LANE, LONDON.
ADVERTISEMENT.
The publication of the concluding volumes ofthe "Introduction to Entomology" has been unavoidablydelayed by the continued ill health ofone of the Authors, which has devolved upon theother a considerable increase of labour, and demandeda greater expenditure of time than wouldotherwise have been required: for though Mr.Spence put every facility in Mr. Kirby's power,and had drawn up a rough copy of every Letterbelonging to his department; yet, as most ofthem had been written several years ago, manycurious facts, and a great variety of interestinginformation subsequently derived from varioussources, were necessarily to be inserted, and thewhole to be prepared for the press.
When the thousands of objects that were to beexamined, and many of them repeatedly, in composingthe Letters on the External Anatomy ofInsects, are considered, it will not appear surprising[Pg iv]if some errors should have crept in; especiallyas Mr. Kirby was deprived of the effectualhelp formerly derived from the acumen, learning,and judgement of his esteemed coadjutor, by hislamented and protracted indisposition: but it ishoped that these errors will be found of minorimportance, and not to affect any general principlesadvanced. The same remarks are also inpart applicable to the Anatomical and OrismologicalTables (Vol. III. p. 354-393, and Vol. IV.p. 257-354), which were drawn up by the Authorsjointly many years ago, before any otherportion of the work was composed, but whichhave, especially the former, required considerablealterations and additions in consequence of subsequentobservations and information.
It will not be amiss here to state, in order toobviate any charge of inconsistency in the possibleevent of Mr. Kirby's adverting in any otherwork to this subject, that though on every materialpoint the authors have agreed in opinion, theirviews of the theory of instinct do not preciselyaccord. That given in the second and fourthvolumes is from the pen of Mr. Spence.
It was originally intended, as mentioned in thePreface, to have given a complete list of Entomological...