Mr. F. Walker’s Descriptions of Aphides. 199 
taries are about one-eighth of the length of the body: the rudi- 
mentary wings are buff. This colour continues for some little 
time after the insect acquires wings, which are milk-white for 
a while after their development. The winged insect is black and 
small : the feelers are more than half the length of the body : the 
mouth is dull green with a brown tip: the abdomen is green, and 
has a stripe of black spots on each side: the nectaries are black, 
and about one-sixth of the length of the body : the legs are pale 
yellow; the feet and the tips of the shanks are brown ; the four 
hinder thighs are sometimes black: the wings are very much 
longer than the body ; the wing-ribs are pale green; the brands 
are pale brown ; the veins are brown. 
11th var. Like the last, but the fore-border and the hind- 
border of the fore-chest are green: the feelers are shorter than 
the body: the mouth is pale green with a black tip: the nec- 
taries are green, and as long as one-fifth of the body: the legs 
are green; the feet and the tips of the shanks are black: the 
wing-ribs and the rib-veins are pale yellow. 
12th var. Like the 10th var., but the borders and the under- 
side of the fore-chest are dull yellow: the tips of the fore-thighs, 
the middle thighs from the middle to the tips, and the hind- 
thighs excepting the base, are dull green : the wing-ribs and the 
rib-veins are pale yellow; the veins are pale brown. 
13th var. The body is black : the sutures of the segments are 
dark green: the abdomen is green, and has a row of black spots 
on each side: the feelers are very much shorter than the body : 
the mouth is green with a black tip: the nectaries are green, 
and about one-sixth of the length of the body : the legs are dull 
yellow; the feet and the tips of the thighs and of the shanks 
are black: the wing-ribs are pale yellow; the brands are dull 
buff. 
14th var. The body is black : the fore-chest is dull green: the 
abdomen is pale grass-green ; the disc of its back is darker, and 
there is a row of very small black spots on each side : the feelers 
are black, and rather more than half the length of the body : the 
mouth is green with a brown tip: the nectaries are black, and 
about one-tenth of the length of the body: the legs are green ; 
the feet and the tips of the thighs and of the shanks are black : 
the wing-ribs are pale yellow ; the brands and the veins are pale 
brown. 
15th var. The body is black and rather small: the abdomen, 
the fore-breast and the borders of the fore-chest are dull green : 
the feelers are much shorter than the body: the mouth is dull 
green with a black tip: the nectaries are dull green, and as long 
as one-sixth of the body: the legs are dark green; the hind- 
thighs, the feet, and the tips of the shanks are black : the wing- 
