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Mr. F. Walker’s Descriptions of Aphides. 299 
_sporum, Heracleum sphondylium, Plantago lanceolata, Stachys syl- 
vatica, Tussilago Farfara, T. petasites, and Potentilla anserina. 
The front is hairy and somewhat notched : the first joint of the 
feelers has on the inner side of its tip a slight process which 1s 
most developed in the wingless female. It is common in the 
neighbourhood of London and of Lancaster, and Mr. Hardy has 
found it near Newcastle. 
The viviparous wingless female. This is small, hairy, elliptical, 
rather narrow and flat, almost transparent, white or tinged with a 
very pale green or straw-colour: the eyes are dark brown: the 
mouth is white with a black tip, and reaches the middle hips: the 
feelers are slender, setaceous, hairy, much longer than the body ; 
their tips are brown ; the fourth joint is much shorter than the 
third; the fifth is shorter than the fourth ; the sixth is rather 
more than one-fourth of the length of the fifth; the seventh is 
nearly as long as the third: the eyes are black : the nectaries are 
rather more than one-fourth of the length of the body; they are 
somewhat thicker towards the tips which are black : the legs are 
long, slender and hairy: the feet are black. The young are nar- 
row and linear. It is infested by an Aldlotria. 
Istevar. Pale green with two rows of transverse vivid green 
spots along the back. 
2nd var. The nectaries are not more than one-twelfth of the 
length of the body. 3 
3rd var. The feelers are rather longer than the body: the 
nectaries are about one-ninth of its length. 
4th var. The body and the limbs are white : the eyes, the tips 
of the feelers, of the mouth, of the nectaries and of the feet are 
black : the nectaries are one-sixth of the length of the body. 
5th var. Very pale rose-colour, or pale yellow tinged with pale 
red, not shining: there is a deep red stripe down the middle of 
the body: the head is white: the feelers are white, and much 
shorter than the body; the tips of some of the latter joints are 
black: the mouth is white; its tip and the eyes are black: the 
nectaries are white with black tips, and about one-sixth of the 
ag of the body: the legs are white; the tips of the feet are 
ack. 
6th var. Greenish white with two very large vivid green spots 
near the base of the nectaries. 
7th var. The body is white: the feelers are a little longer than 
the body: the eyes, the tip of the mouth, and the tips of the 
shanks and of the feet are black: the nectaries are nearly one- 
third of the length of the body. 
8th var. The body is pale yellow : the feelers are black toward 
the tips, and a little longer than the body: the mouth is pale 
yellow ; its tip and the eyes are black : the nectaries are also pale 
