52 BRITISH APHIDES. 



Winged viviparous female. 



Head, antennae, and thorax black. Eyes dark brown. 

 Abdomen dark green. Prothorax and edge of abdo- 

 men furnished with black spines or papillae. Cornicles 

 dark green, with paler tips. Legs black, with upper 

 parts of the tibige ochreous. Tail dark green. Rostrum 

 reaches to the second coxge. Sternum black. Under side 

 of abdomen green. Wings greyish, with black veins 

 which are sharply defined. From this character the 

 specific name has been taken. Stigma smoky. 



Taken at Pembroke in July on the Willow-herb, 

 Epllobium montanum, and subsequently at Haslemere 

 feeding on the flower-stalks of the same plant. The 

 very old specimens, apterous and otherwise, are often 

 nearly black. 



Aphis saliceti, Kalt., De Geer {?), Koch. Plate LI, bis. 

 A2)terous viviparous female. 



Inch. Millimetres. 



Size of body 0-065x0-035 1-64x0-88. 



Length of antennse 0*045 1-13. 



cornicles 0-017 0-04. 



Oval, broad across the nectaries. Variable in colour. 

 Young often reddish. Head convex. Prothorax with 

 two spines. Colour bright green, mottled with nume- 

 rous paler oval spots. Tibise and nectaries yellow with 

 black tips. The latter long and cylindrical. Eyes 

 brown. Cauda thick at its base and rather lonof. 

 Some specimens have orange-red stains, which are 

 more pronounced on the under side. Coxae, base, and 

 apex of tJie rostrum, and also the anal plate, dark 

 brown. 



