90 BRITISH APHIDES. 



It is not impossible that hereafter we shall discover 

 that some of the root-feeding Aphides are dimorphs of 

 aerial species. 



Kaltenbach says Aj)Ms atrijjUciSj Linn., is not A. 

 atriplicis of Fabr. 



Aphis sedi, Kalt., Koch. Plate LXVI, figs. 1, 2. 

 Apterous viviparous female. 



Inch. Millimetres. 



Size of body 0-060x0030 l-54x0-76. 



Length of antennae 0*045 1'13. 



cornicles O'OIO 0-25. 



Very small. Oval. Segments deeply marked, dull 

 blackish green, with a greyish or glaucous bloom. 

 AntennjB and legs pale yellow or else whitish. Cornicles 

 and tail black ; the last organ thick and obtuse at the 

 point. 



Winged viviparous female. 



Inch. Millimetres. 



Expanse of wings 0'190 4*81. 



Size of body 0-050X0-020 l-27x0-50. 



Length of antenna? 0*040 I'Ol. 



'&' 



cornicles 0*007 0*17. 



Very small. Head and thorax shining black. 

 Abdomen very dark shining green. Legs yellow. 

 Cornicles and tail black ; the last blunt. Belly below 

 dark green. Rostrum pale green, with black tip, 

 reaching to the third coxas. Wings short ; membrane 

 dark and very iridescent ; finely punctured. Stigma 

 dark ; veins black ; last fork of cubital vein short ; 

 insertions yellowish. 



This active little Aphis was taken at Haslemere in 

 August, crowding the flower-stalks of several kinds of 



