48 Mr. F. Walker’s Descriptions of Aphides. 
are colourless, and twice the length of the body ; the wing-ribs 
are pale yellow ; the wing-brands are pale brown; the veins are 
brown. 
lst var. While a pupa it resembles the wingless female in 
colour, but when the wings are unfolded it is dull green or 
greenish yellow: the discs of the head, of the chest and of the 
breast are black, and the abdomen has a row of black dots on 
each side: the feelers are black and as long as the body: the 
mouth is pale yellow ; its tip and the eyes are black: the legs 
are also pale yellow with black feet and shank-tips. 
2nd var. The body is black: the fore-border and the hind- 
border of the fore-chest are green: the abdomen is green with 
black cross-bands, and has a row of black spots on each side : the 
feelers are a little longer than the body : the mouth is pale green ; 
its tip is black: the nectaries are about one-fifth of the length 
of the body: the legs are yellow; the feet and the tips of the 
thighs and of the shanks, and nearly the whole of the hind-thighs 
are black. 
Variation in the wing-veins. The lower branch of the first fork 
is wanting. 
The front of the head is prominent in the middle, and has a 
tubercle on each side for the support of the feelers ; the first joint 
of these organs is longer and narrower than the tubercle on which 
it is seated ; the second is shorter and much narrower than the 
first ; the third is narrower than the second ; the fourth is shorter 
than the third ; the fifth is shorter than the fourth ; the sixth is — 
about one-third of the length of the fifth ; the seventh is longer 
than the third: the tip of the abdomen is ent 30) >. and very 
slightly curved. 
59. Aphis Asteris, n. 8s. 
The viviparous wingless female. It is oval, slightly convex,, ‘dull 
olive-green, very much tinged with red especially round the bor- 
der, covered with white beneath and sometimes above: it has a 
row of impressions on each side of the body, and these are most 
distinct towards the head: the feelers are black, yellow near the 
base, and longer than the body : the eyes are dark red: the mouth 
is dull yellow ; its tip is black : the nectaries are black, not curved, 
and about one-eighth of the length of the body : the legs are long 
and yellow ; the feet and the tips of the shanks and of the thighs 
are black. When young it is paler and more linear, and some- 
times green. Abundant on Aséer tripolium, onthe shore near 
Lancaster and at Holywood, near Belfast, in the autumn. 
lst var. Almost black, especially towards the fore-chest and 
the head. 
The front is slightly concave in the middle, and convex on 
