MONOGRAPH 



OF THE 



BEITISH APHIDES. 



VOL. III. 



BY 



GEORGE BOWDLER BUCKTON, 



FELLOW OF THE KOYAL, LINNEAN, AND CHEMICAL SOCIETIES OF LONDON] 



COBRESPONDINQ MEMBER OF THE ACADEMY OF 



NATURAL SCIENCES, PHILADELPHIA. 



" Servare modum, finemque tenere, naturam scqui.'' — Lucan. 



" To keep a mean, to hold the end, 

 A.ud Nature's conduct to attend." 



Quoted by Montaigne. 



LONDON: 

 PRINTED FOR THE RAY SOCIETY. 



MDCCCLXXXI. 



