Mr. F. Walker's Descriptions of Aphides. 297 



oval. During the spring and the early part of summer it abounds 

 under the red swollen leaves, and like many of the clustering 

 species is the favourite food of the grubs of the ladybirds and of 

 the St/rphi. 



The viviparous winged female. While a pupa it is pale green ; 

 the limbs are almost white ; the feelers are as long as the body ; 

 the tips of some of the joints are pale brown : the eyes are dark 

 red : the nectaries are rather more than one- fifth of the length 

 of the body : the feet and the tips of the shanks are brown. 



1st var. Greenish white. 



2nd var. Nearly white. 



3rd var. Grass-green. 



4th var. Bright yellow, nearly elliptical, and having a vivid 

 green stripe along the back : the eyes are red : the limbs are pale 

 yellow or almost white. 



The wings are unfolded in May, and the insect is then yellow 

 and slightly varied with green : the head, the chest and the 

 breast are brown : there is a large black spot near the tip of the 

 abdomen, and a row of small black spots on each side : the feelers 

 are brown, and longer than the body : the eyes are black : the 

 mouth is pale yellow with a black tip : the nectaries have also 

 black tips, and are nearly one-fifth of the length of the body : the 

 legs are dull yellow ; the feet and the tips of the thighs and of 

 the shanks are black : the wings are colourless, and very much 

 longer than the body : the wing-ribs are very pale yellow ; the 

 wing-brands and the veins are brown. 



5th var. The head and the chest are bufi^: the abdomen is 

 pale green varied with darker colour : the feelers are black, pale 

 green towards the base ; the base of the third joint is pale yel- 

 low : the eyes are dark brown : the tip of the mouth is brown : 

 the nectaries are pale yellow with brown tips, and nearly one- 

 fourth of the length of the body : the legs are pale yellow ; the 

 knees, and the tips of the thighs and of the shanks are brown : 

 the wing- ribs are pale green; the rib- veins are buff; the wing- 

 brands are dark buff. 



6th var. The head, the chest and the abdomen are black : 

 the feelers are black, yellow at the base, and a little shorter than 

 the body. 



7th var. Yellow : the back of the head is brown : the chest 

 is streaked with dull red : there are transverse black spots with 

 dark green edges on the back of the abdomen : the feelers are 

 black, and a little longer than the abdomen : the nectaries are pale 

 yellow, and about one-eighth of the length of the body. 



8th var. Yellow : there is a broad brown band across the 

 fore-chest : the middle-chest is brown : the breast is black : the 

 abdomen has a large quadrate black spot on its disc, and a row 



