198 Mr. F. Walker’s Descriptions of Aphides. 
legs are pale green ; the feet and the tips of the shanks are black : 
the wing-ribs are pale yellow. 
3rd var. The back of the abdomen is black, and it is traversed 
by green bands, one of which near the base is broader than the 
rest ; the nectaries are as long as one-sixth of the body. 
Ath var. The abdomen is green, and its back is traversed by 
confluent black bands : the feelers are nearly as long as the body : 
the mouth is pale yellow with a black tip: the nectaries are also 
pale yellow with black tips, and as long as one-sixth of the body : 
the thighs and the wing-ribs are pale yellow. 
5th var. Like the preceding, but the borders of the fore-chest 
and the fore-breast are dull yellow. 
6th var. Black, shining: the borders of the fore-chest are 
dark green: the abdomen is pale green at the base and beneath ; 
the dise and the hind-part are almost black: the feelers are less 
than half the length of the body: the nectaries are black, and 
about one-seventh of the length of the body: the legs are dull 
yellow ; the feet and the tips of the shanks are black : the wings 
are nearly twice the length of the body; the wing-ribs are pale 
yellow ; the wing-brands are pale brown, and very long ; the veins 
are brown. On Anethum Feniculum, in the beginning of May. 
7th var. Black: the base and the underside of the abdomen 
and the mouth are green, and the tip of the latter is black : the 
feelers are nearly as long as the body: the nectaries are about 
one-sixth of the length of the body: the legs are pale yellow ; 
the feet, and the tips of the thighs and of the shanks are black. 
On Peucedanum officinale, at the end of May. 
8th var. Black: the fore-border and the hind-border of the 
fore-chest and the abdomen are green; the latter is sometimes 
traversed by black bands: the feelers are much shorter than the 
body : the mouth is green with a black tip: the legs are yellow ; 
the feet and the tips of the shanks are black; the tips of the 
thighs are sometimes brown. 
9th var. Black: the abdomen is very dark green with a row 
of black spots on each side; its underside is rather pale: the 
feelers are rather shorter than the body, or sometimes about 
half its length: the mouth is dark green with a black tip: the 
nectaries are one-fifth or onetsixth of the length of the body: 
the legs are dark dull green or dull yellow; the feet and the 
tips of the thighs and of the shanks are brown or black: the 
wing-brands are dark green or pale brown. On Cherophyllum 
sylvestre, in the beginning of May. 
10th var. While a pupa it is pale yellowish green, with two 
vivid green stripes along the back : the feelers are full one-third 
or sometimes more than half the length of the body: the nec- 
