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. 



IN FOUR VOLUMES. 

 VOL. IV. 



FIFTH EDITION. 



LONDON: 



PRINTED FOR 



LONGMAN, REES, ORME, BROWN, AND GREEN, 

 PATERNOSTER ROW. 



1828. 



