196 Mr. F. Walker's Descriptions of Aphides. 



of the body ; their tips are brown : the eyes are dark brown : the 

 tip of the month is brown : the nectaries are as long as one- 

 eighth of the body : the legs are pale green ; the feet and the tips 

 of the shanks are brown. Abundant on Anethum Fceniculum in 

 the beginning of May. 



2nd var. Small, grass- green, short elliptical, rather flat : the 

 limbs are green ; the tips of the feelers, the eyes, the tip of the 

 mouth, and the feet are brown : the feelers are not half the 

 length of the body : the nectaries are about one-sixth of the 

 length of the body. On Peucedanum officinale at the end of 

 May. 



3rd var. The feelers are pale green, and little more than one- 

 third of the length of the body ; their tips are black : the eyes 

 are dark red. On Heracleum Sphondylium at the end of June. 



4th var. The body is pale greenish yellow, and the head in- 

 clines to a buff colour : the eyes are dark red : the feelers are pale 

 yellow, darker towards their tips, and a little more than half the 

 length of the body : the mouth is pale yellow with a black tip : 

 the nectaries are pale yellow with black tips, and rather more 

 than one-fourth of the length of the body : the legs are pale yel- 

 low or greenish yellow ; the tips of the feet are black. 



5th var. Green, shining : the feelers are pale yellow, and less 

 than half the length of the body ; their tips are darker : the 

 mouth is pale yellow ; its tip and the eyes are black : the nec- 

 taries are pale yellow, and as long as one-sixth of the body ; their 

 tips are black : the legs are pale yellow ; the thighs are pale green ; 

 the tips of the shanks and of the feet are dark. 



6th var. The body is pale red varied with yellow : the feelers 

 are pale yellow, and about half the length of the body ; the tips 

 of the latter joints are darker : the mouth is pale yellow ; its tip 

 and the eyes are black : the nectaries are pale yellow with black 

 tips, and nearly one-fifth of the length of the body : the legs are 

 pale green ; the knees and the tips of the shanks are brown ; the 

 tips of the feet are black. 



7th var. The body is dark green, or pale green with the head 

 and the limbs inclining to a white colour : the feelers are pale 

 green with brown tips, and rather more than one-third of the 

 length of the body : the nectaries are pale yellow with brown 

 tips, and are as long as one-sixth of the body : the mouth is very 

 pale green with a brown tip : the eyes are very dark brown : the 

 legs are very pale green ; the feet are pale brown. 



8th var. The body is dull green : the feelers are black, dull 

 yellow at the base, and much shorter than the body ; the joints 

 are rather thick with the exception of the last, which is slender : 

 the mouth is pale yellow ; its tip and the eyes are black : the 

 nectaries are dark green, and as long as one-eighth of the body : 



