AN 



INTRODUCTION 



TO 



ENTOMOLOGY: 



OR 



ELEMENTS 



OF THE 



NATURAL HISTORY OF INSECTS 



WITH PLATES. 



By WILLIAM KIRBY, M.A. F.R. and L.S. 



EECTOB OF BARHAM, 

 AND 



WILLIAM SPENCE, Esq. F.L.S. 



FOURTH EDITION. 

 VOL. I. 



LONDON: 



PRINTED FOR LONGMAN, HURST, REES, ORME, AND BROWN, 

 PATERNOSTER ROW. 



1822. 



