Mr. F. Walker’s Descriptions of Aphides. 303 
feelers are black, rather thick at the base, and about half the 
length of the body: the fourth joint is about half the length of 
the third; the fifth is shorter than the fourth ; the sixth is much 
shorter than the fifth, but more than half its length ; the seventh 
is as long as the fourth: the mouth and the nectaries are black, 
and the latter are about one-eighth of the length of the body : 
the thighs and the shanks, especially of the fore-legs, are dull 
pale yellow towards the base : the wings are colourless, and much 
longer than the body ; the wing-ribs are pale yellow ; the brands 
are pale brown, and the veins are darker; the second vein di- 
verges from the first, but is nearly parallel to the third, whose 
first fork is a little after one-third, and its second fork long after 
two-thirds of its length. 
lst var. The thighs and the shanks are yellow with black tips. 
2nd var. Black: the abdomen has interrupted gray bands 
above, and is very dark green beneath: the feelers are nearly as 
long as the body : the mouth and the nectaries are dark green ; 
the former has a black tip, and the latter are about one-sixth of 
the length of the body: the legs are dull buff; the thighs are 
og yellow ; their tips and those of the shanks and the feet are 
lack. 
Variations in the wing-veins.—1st var. With no second fork in 
one wing. — 
2nd var. The third vein has not two forks, but is divided into 
three branches. 
The oviparous wingless female..Very small, yellow, narrow, 
long, spindle-shaped, rather flat, and not shining: there are two 
green stripes along the whole length of the back : the limbs are 
pale yellow: the feelers have black tips, and are about half the 
length of the body : the tip of the mouth, the eyes, and the tips 
of the nectaries are black, and the latter are as long as one-fourth 
of the body : the legs are moderately long ; the knees, the feet, 
and the tips of the shanks are black. 
The winged male. Appears in September and October, and 
pairs in the latter month with the oviparous female: it is small 
and black: the borders of the fore-chest and the fore-breast are 
_ pale green: the abdomen is green: the feelers are as long as the 
body: the mouth is pale yellow with a black tip: the nectaries 
are dull green with black tips, and as long as one-sixth of the 
body : the legs are pale yellow ; the feet and the tips of the thighs 
and of the shanks are black : the wing-ribs and the rib-veins are 
pale yellow ; the wing-brands and the other veins are pale brown. 
Ist var. The borders of the fore-chest and the fore-breast are 
dark green : the abdomen has a row of black spots on each side: 
the mouth is dull yellow with a black tip : the nectaries are black : 
the four hinder thighs excepting the base are also black. 
Length of the body $ line; of the wings 2 lines. 
