78 BRITISH APHIDES. 



with black bands, and a dark dorsal patcli, or else 

 altogether black, sides without perceptible spines. 

 Cornicles short and black. Tail very small and black. 

 Legs ochreous, with black femora and tarsi. Ros- 

 trum reaches to the second cox^. Under side greenish. 

 Wings with yellow cubitus and stigmata; veins brownish 

 yellow. June. 



Apterous oviparous female. 



Incli. Millimetres. 



Size of body O'OSO X 0'045 2*02 X I'lS. 



Length of antennae 0*045 1"13. 



cornicles O'OIO 0-25. 



Oval, broader than the viviparous female, pointed 

 at the tail. Head blunt and wide; vertex pointed. 

 Colour uniformly dark greyish brown. Abdomen 

 often shining, with three or four mature eggs appear- 

 ing as green patches. Cornicles very small. Cauda 

 conical. Body furnished with black spines. Legs 

 very pale green, almost white; hind tibise much 

 flattened. 



On account of the transparency of the legs the 

 curious pulsating sac at the knees, noticed and figured 

 in Vol. I, PL A, fig. 12, can be easily seen. By dissection 

 several large eggs were obtained from each specimen. 

 Wanstead, October 30th. 



Winged male. 



Inch. ' Millimetres.. 



Expanse of wings 0*350 8'89. 



Size of body 0-060 X 0*030 1-52 X 0-76. 



Length of antennae 0*080 2*02. 



„ cornicles 0*015 0*38. 



Head and eyes large. Antennae long. Body rela- 

 tively very small, wholly black, deeply carinated. Legs 

 fine yellow, with black femoral and tibial points, and 



