300 Mr. F. Walker’s Descriptions of Aphides. 
yellow with black tips, and about one-third of the length of the 
body : the feet are black. 
The viviparous winged female. While a pupa it resembles the 
wingless female in colour, and the rudiments of its wings are 
white, but when these organs are unfolded it is pale greenish 
yellow : the feelers are black, pale green at the base, and as long 
as the body: the fourth joint is much less than half the length 
of the third ; the fifth is shorter than the fourth ; the sixth is as 
long as the fifth ; the seventh is as long as the fourth: the eyes 
are dark red: the mouth is pale green ; its tip is black: the dise 
of the chest and that of the breast are dark green : the abdomen 
is very pale yellow with transverse broken bright green bands : 
the nectaries are pale yellow, and nearly one-sixth of the length 
of the body ; their tips are black : the legs are pale greenish yel- 
low, long and slender; the knees, the feet, and the tips of the 
shanks are black: the wings are colourless, and much longer 
than the body ; the wing-ribs and the rib-veins are pale yellow, 
the wing-brands are nearly colourless: the veins are brown; the 
first and the second veins diverge, but the second and the third 
are nearly parallel to each other ; the first fork of the third vein 
is a little before one-third and the second after two-thirds,of its 
length; the fourth vei is much eurved, and the angle of the 
brand whence it springs is very slight. 
lst var..Dull yellowish green: the feelers are brown, white 
towards the tips: the disc of the chest and that of the breast are 
black : the abdomen is pale yellowish green, and on its dise there 
are afew small green marks and one large square dark green spot : 
the nectaries are pale yellowish green, and nearly one-fourth of 
the length of the body ; their tips are black : the wing-brands are 
very pale brown. 
2nd var. Pale greenish white: the feelers are much longer 
than the body; their tips are white: the discs of the head, of the 
chest and of the breast are brown or black, and there is also a 
brown or black spot on each side of the chest: the abdomen is 
traversed by black bands ; the first and the second are narrow ; 
the third and the fourth are broad: the eyes are dark brown: 
the nectaries are nearly white, and not more than one-tenth of 
the length of the body: the legs are pale yellow; the tips of the 
thighs are brown; the feet and the tips of the shanks are black : 
the wing-ribs are white; the wing-brands are gray; the veins 
are black. The pupa is all white except the eyes and the feet 
which are brown. 
3rd var. While a pupa the chest is buff, and the rudimentary 
wings are white. 
Ath var. While a pupa it is pale greenish yellow or pale saffron, 
long-elliptic, rather flat, smooth, not shining: there is a green 
