296 Mr. F. Walker’s Descriptions of Aphides. 
are yellow with brown tips, and not half the length of the body : 
the eyes are black : the nectaries are white, and about one-twelfth 
of the length of the body. 
lst var. The body is mottled with paler green : the feelers are 
nearly all white: the eyes are dark brown. 
2nd var. The nectaries are pale green with brown tips, and 
about one-seventh of the length of the body. ; 
It attains its full size in April, and is then greenish yellow, 
oval, convex, and slightly hairy above: there is a rim on each 
side of the body, and two vivid green lines along the back: the 
feelers are almost white with the exception of four black rings, 
and hardly half the length of the body: the mouth is very pale 
green; its tip and the eyes are brown: the nectaries are pale 
straw-colour with brown tips, and about one-sixth of the length 
of the body: the legs are very pale green; the feet and the tips 
of the shanks are brown. 
3rd var. Yellowish green. 
4th var. Grass-green. | 
5th var. The limbs are white; the feelers are more than half 
of the length of the body, and the nectaries are about one-fifth 
of its length. 
6th var. Bright yellow: the limbs are white: the feelers are 
a little shorter than the body: the eyes, the tip of the mouth, 
and the feet are black : the nectaries are one-fourth of the length 
of the body. 
7th var. In the autumn and when it is young it is pale yel- 
low and half transparent: the tips of the joints of the feelers, 
the tip of the mouth, and the feet are black. When full-grown 
it is yellow, convex, smooth, shining, oval, or nearly elliptic : the 
feelers are a little shorter than the body: the eyes are red: the 
nectaries are whitish with black tips, and about one-sixth of the 
length of the body : the legs are whitish ; the knees are gray ; the 
feet and the tips of the shanks are black. 
8th var. Like the preceding, but the body is almost white. 
9th var. Like the preceding, but with a lively green stripe down 
the middle of the body. 
10th var. The feelers are much longer than the body. 
11th var. Bright yellow: the limbs are pale yellow: the feel- 
ers are a little longer than the body ; the tips of their joints, the 
eyes, and the tip of the mouth are black : the nectaries have black 
tips, and are as long as one-fifth of the body : the knees and the 
tips of the shanks are gray: the feet are black. 
12th var. Greenish white. 
13th var. Nearly white. 
It varies much in breadth and in outline ; some of the insects 
are slender and spindle-shaped, others are stout and elliptical or 
