Mr. F. Walker’s Descriptions of Aphides. 279 
fourth joint is shorter than the third; the fifth is a ttle shorter 
than the fourth ; the sixth is a little shorter than the fifth; the 
seventh is nearly twice the length of the sixth. 
1st var. Dark bronze colour. 
2nd var. Pale whitish green ; limbs darker. 
3rd var. Black and white, or piebald. 
4th var. Dark velvet-like red : the feelers are white with black 
tips: the mouth also is white ; its tip, the eyes and the nectaries 
are black: there is a large and somewhat pale spot on the disc of 
the body: the legs are white; the four hinder thighs, the fore- 
knees, the feet and the tips of the shanks are black. When very 
young it is pale red, and its legs excepting the feet are nearly 
all white. 
It is infested by an Aphidius. The clusters of dead bodies 
which stick to the leaves are consumed by little Acari. 
The viviparous winged female. While a pupa it has spots of 
white powder in a row on each side of the body : when the wings 
are unfolded it is stout, thick, black, shining, and has a slight 
metallic tinge: the feelers are more than half the length of the 
body; the fourth joint is shorter than the third; the fifth 1s 
shorter than the fourth; the sixth is much shorter than the 
fifth; the seventh is hardly twice the length of the sixth: 
the mouth is dull green with a black tip: the nectaries are 
not more than one-tenth of the length of the body: the legs 
are black ; the shanks except their tips, the base of the thighs, 
and nearly the whole of the fore-thighs, are yellow: the wings 
are colourless, and are very much longer than the body; the 
wing-ribs and the rib-veins are pale yellow ; the wing-brands are 
dull buff; the other veins are brown; the second vein diverges 
much more from the first than it does from the third ; the first 
fork of the latter vein begins after one-third, and the second still 
more beyond two-thirds of its length; the fourth vein is more 
curved at its source than near its tip: the angle whence it springs 
is very slight. 
Ist var. Pale whitish green with dark limbs. 
2nd var. Body black and white. 
3rd var. Wings with a slight yellow tinge. : 
4th var. Body small, black : abdomen dark green : the seventh 
joint of the feelers is more than twice the length of the sixth. 
Length of the body 4-3 line ; of the wings 13-24 lines. 
Variations in the veins of the wings. \st var—The fourth 
branch-vein forms an angle, and a short cross-vein passes from 
it to the second fork of the third branch-vein: in the opposite 
wing the branches of the second fork having separated reunite, 
and form a little elliptical areolet, and then again divide to form 
the fork. 
