392 Mr. F. Walker’s Descriptions of Aphides. 
a black tip: the tube at the tip of the abdomen and the nectaries 
are white ; the latter have darker tips and are as long as one- 
fourth of the body: the legs are greenish white; the knees are 
brown ; the feet and the tips of the shanks are black. 
9th var. Like the last, but the body is deep green and mottled 
with dark colour: the feelers are black, yellow at the base: the 
nectaries are pale yellow with dark tips: the thighs are green ; 
the shanks are yellow, with black tips. 
10th var. The nectaries are slightly spindle-shaped. 
_ lth var. The body is yellow: the borders of the abdomen are 
black : the feelers are black, yellow at the base, and shorter than 
the body: the mouth is pale yellow; its tip and the eyes are 
black : the nectaries are yellow with black tips, and as long as 
one-fourth of the body : the legs are pale red ; the knees, the feet, 
and the tips of the shanks are black. Mr. Hardy, on Urtica urens. 
12th var. The body is dull green tinged with buff: the feelers 
are pale yellow, darker towards their tips, and a little shorter 
than the body: the eyes are dark brown: the mouth and the 
nectaries are pale yellow with brown tips, and the latter are as 
long as one-fourth of the body : the legs are also pale yellow ; the 
feet and the tips of the shanks are brown. On Carduus. 
13th var. The body is small, oval, convex, pale green, not 
shining, whitish towards the head: the feelers are pale yellow, 
black towards the tips, and longer than the body: the mouth is 
pale yellow; its tip and the eyes are black: the nectaries are 
~ pale yellow with black tips, and about one-fourth of the length 
of the body : the legs are pale yellow, and rather long ; the knees, 
the feet, and the tips of the shanks are black. An Aphis of this 
variety has one hind-shank much longer than the other, and 
black in the middle as well as at the end. 
14th var. The body is rose-colour mottled with pale yellow: 
the head and the limbs are yellowish white : the feelers are longer 
than the body ; the tips of the joints are black : the eyes are very 
dark red: the mouth and the nectaries have black tips, and the 
latter are about one-fifth of the length of the body: the feet are 
black. 
15th var. The body is green, and shining. 
16th var. The body is yellow. 
17th var. The body is red. 
18th var. The body is bright red. 
19th var. The body is pale orange. 
20th var. The body is streaked with black. 
21st var. The body is nearly all black. 
These colours vary in intensity, and are either separate, or 
mixed together on the body, which is sometimes dull, sometimes 
shining. 
The limbs also yary im colour: the feelers are rather less or 
