AN 
INTRODUCTION 
TO 
ENTOMOLOGY: 
OB 
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. *<? 
M I) 
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