Mr. F. Walker’s Descriptions of Aphides. 43 
lst var. The body 1s red. 
2nd var. The body is lilac. 
drd var. The body is blackish. 
The viviparous winged female. Unfolds its wings in the mid- 
dle of May: it is black and rather stout: the abdomen is dark 
green with a row of black spots on each side: the feelers are 
rather thick, and a little shorter than the body : the first and the 
second joints are slightly angular on the inner side of their tips ; 
the fourth joint is but little more than half the length of the 
third; the fifth is a little shorter than the fourth; the sixth is 
about half the length of the fifth ; the seventh is as long as the 
fifth: the tip of the mouth and the nectaries are black, and the 
latter are as long as one-fourth of the body: the legs are long ; 
the thighs are yellow towards the base : the wings are colourless, 
and nearly twice the length of the body ; the wing-ribs and the 
rib-veims are pale yellow; the wing-brands and the veins are 
brown ; the second vein diverges much more from the first than it 
does from the third vein; the forks of the latter usually have 
their respective sources at one-third and at two-thirds of the 
length; the fourth vein is much curved near its beginning, but 
nearly straight in the latter part of its course ; the angle whence 
it springs is slight. 
Length of the body 2 line ; of the wings 23 lines. 
68. Aphis Cerasi, Fabr. 
Aphis Cerasi, Fabr. Ent. Syst. iv. 211.6; Syst. Rhyn. 295. 6 ; 
Kalt. Mon. Pflan. i. 45. 31. 
Cerasaphis, Amyot, Ann. Soc. Ent. Fr. 2™° série, v. 477. 
It feeds on the wild and on the cultivated Cerasus Avius from 
April till November, and its large swarms on the shoots of this 
tree are sometimes injurious to the fruit ; it occasionally dwells on 
the peach, and its colour is then rather paler, especially towards 
the head. 
The viviparous wingless female. The eggs are hatched in April, 
and the young Aphides are red or reddish brown, but as they 
grow they acquire a darker colour, and are convex, plump, and 
shining, and have a brassy tint on the back : the limbs are brown : 
the feelers are black at the base, and about one-third of the 
length of the body : the eyes are dark brown: the suckers of the 
mouth are red, and can be thrust out to some distance : the legs 
are rather short and thick. When full-grown it is coal-black : 
the body is exceedingly plump and nearly round; the punctures 
on each side are very distinct : the feelers are yellow towards the 
base, and nearly as long as the body : the nectaries are straight, 
and as long as one-sixth of the body, and have sometimes pale 
tips: the thighs at the base and the shanks except their tips are 
