Mr. F. Walker^s Descriptions 0 / Aphides. 447 
tioned in the description of the male indicates the border of the 
brand. 
The pupa is elliptical, and of a bright yellow colour. 
The winged male. It acquires wings early in October, and its 
deep red or crimson-coloured pupse may be seen for some time 
previously feeding here and there among the viviparous and ovi- 
parous females. The head is broader than the chest : the front 
is armed with bristles, slightly concave in the middle, and retreat- 
ing on each side : the eyes are prominent : the feelers are seta- 
ceous, and as long as the body; the fourth joint is much more 
than half the length of the third ; the fifth is much shorter than 
the fourth ; the sixth is a little more than half the length of the 
fifth, and increases in breadth from its base to its tip ; the seventh 
is rather longer than the fourth, and is much more slender than 
any of the preceding joints : the fore-chest is rather broad and 
short ; its length is one-fourth of its breadth ; the sides are con- 
vex and not notched : the nectaries are not more than one-twentieth 
of the length of the body : the legs are rather short and stout ; the 
shanks are very slightly curved : the wings are long and colour- 
less ; the veins are brown ; the wing- vein does not widen into the 
brand, but passes along its hind-border which is very slightly 
curved, and not angular ; it is spindle-shaped ; the veins are 
strongly marked ; the first and the second branch-veins are near 
together at the base, the first is straight, the second is slightly 
curved ; the third is obsolete at its source, and is forked before 
one-third, and forked again before two-thirds of its length, and 
it forms two very slight obtuse angles where it casts ofi’ its forks ; 
a very slender zigzag line runs along the brand at a short di- ^ 
stance from its hind-border ; the fourth vein is unusually long. 
The body is yellow : the feelers, except the base of the third joint, 
the tip of the mouth, the disc of the chest and that of the breast, 
and the four hinder thighs, are brown : the eyes are red; the wing- 
brands are brown. Irregularities in the wing-veins : — 1st, The 
fourth vein is curved towards its tip. 2nd, The tip of the lower 
branch of the first fork, and the tips of both branches of the 
second fork are wanting. 3rd, The lower branch of the second 
fork is obsolete. 
Length of the body f-I|- line ; of the wings 2^ lines. 
This species may be found from June till October, but is not 
abundant till the autumn, when the winged female disappears ; 
but the viviparous wingless female is common in October, the 
season for the pairing of the male with the oviparous female. 
20. Aphis hirticornis, n. s. 
The viviparous winged female. The body is dull dark buff ; the 
disc of the head and that of the chest are brown : the feelers are 
