Mr. F. Walker^s Bescj'iptions 0 / Aphides. 343 
4th variety. Feelers not more than half the length of the body. 
On each side of the abdomen there is a bundle of white floc- 
cose matter like spun -glass ready to be used, as is said, as wrap- 
pers for the eggs when they are laid ; these eggs are four or five 
in number, of an orange colour, which they communicate to the 
half-transparent body. 
Length of the body 1 line ; of the wings 2| lines. 
The winged male. Its colour does not differ from that of the 
winged female ; it lives in October and November, and then pairs 
with the wingless female. 
1 5 . Aphis Juglandicola . 
Lachnus Juglandicola, Kalt. Mon. Pflan. i. 151. 4. 
The viviparous wingless female. Appears in July; it is yellow, 
oval, flat, and hairy : the feelers are not quite one-fourth of the 
length of the body. 
The viviparous winged female. This dwells on the underside of 
the leaves of Juglans regia, the walnut-tree, from July to October : 
while a pupa it is yellow, flat, hairy, nearly elliptical, and has two 
rows of brown spots along the back ; there are usualty seven 
spots, often less, but very rarely more, in each row : the front is 
broad, convex between the eyes and prominent in the middle : 
the limbs are pale yellow : the feelers are not more than one- 
fourth of the length of the body; the tips of their joints and the 
tip of the mouth are brown. When winged it is yellow : the 
feelers are less than half the length of the body ; the tips of the 
joints are brown ; the third joint is long ; the fourth is much 
shorter than the third; the fifth is hardly shorter than the 
fourth ; the sixth is much shorter than the fifth ; the seventh is 
extremely short and about one-fourth of the length of the sixth : 
there are no tubercles at the base of the feelers : the eyes are red : 
the nectaries are extremely short : the legs are yellow, and there 
is a brown spot near the tip of each hind-thigh : the wings are 
colourless ; the wing-ribs and the rib-veins are yellow ; the wing- 
brands are colourless ; the base of each branch-vein and the tips 
of the rib-veins are slightly clouded; the first and the second 
branch -veins descend abruptly to the hind-border of the wing, 
as in Betulicola, Alni, &c. ; these veins become very faint as they 
approach the hind-border. 
1st variety. A spot on the tip of each of the middle thighs. 
2nd variety. The wing-brands slightly clouded. 
3rd variety. A brown spot on each side of the back of the ab- 
domen. 
4th variety. Body yellow intermingled with orange. 
5th variety. Body orange, 
The body is rather short and broad : the front of the head and 
