Mr. F. Walker’s Descriptions of Aphides. 371 
The viviparous winged female. This as a pupa and when very 
young is reddish green, but afterwards acquires a rose or pale 
red colour: the nectaries are as long as one-eighth of the body : 
the rudimentary wings are pale red; they are unfolded before 
the middle of May, and then the insect is deep black : the hind- 
border of the fore-chest is dark green: the abdomen is green, 
and sometimes it has a row of black spots on each side: the 
feelers are black, dull green at the base, and much shorter than 
the body; the fourth joint is much shorter than the third; the 
fifth is shorter than the fourth ; the sixth is a little shorter than 
the fifth ; the seventh is quite as long as the third: the mouth is 
green ; its tip and the eyes are black: the nectaries are black, 
and vary in length from one-sixth to one-tenth 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 nearly twice 
the length of the body ; the wing-ribs are green ; the wing-brands 
are pale brown; the veins are dark brown: the second fork is 
very short. 
Ist var. Black: the front and the back of the fore-chest, the 
fore-breast, and the abdomen are dark green: the feelers are a 
little shorter than the body: the mouth is pale dull yellow with 
a black tip: the fore-thighs, the shanks except their tips, and 
the four hinder thighs towards the base are yellow: the wing- 
ribs and the rib-veins are pale yellow; the wing-brands are pale 
brown ; the other veins are brown. 
2nd var. Green: the head, the disc of the chest, and that of 
the breast are black, and there is a row of black spots on each 
side of the abdomen: the feelers are black, and about half the 
length of the body: the nectaries are about one-twelfth of the 
length of the body: the legs are black ; the shanks except their 
tips, and the thighs towards the base, and sometimes nearly the 
whole of the fore-thighs are pale yellow: the wing-ribs are some- 
times pale yellow, and the colour of the wing-brands varies from 
pale brown to dull green. 
3rd var. The fore-thighs are black with the exception of the 
base. 
4th var. The body is grass-green : the discs of the head, of the 
chest and of the breast are pale reddish brown: the feelers are 
brown, and shorter than the body : the mouth is pale green with 
a brown tip: the eyes are dark brown: the nectaries are pale 
green, and about one-sixth of the length of the body: the legs 
are dull pale green ; the feet and the tips of the shanks are brown : 
the wing-ribs and the rib-veins are dull green ; the brands and 
the other veins are brown. On the whitethorn in the middle of 
May. 
5th var. While a pupa it is green, with two darker green 
