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



than the fourth ; the sixth is much shorter than the fifth ; the 

 seventh is more than twice the length of the sixth. 



1st var. The body is dull yellowish green varied with red : the 

 feelers are dull yellow, black towards their tips, and a little 

 shorter than the body : the mouth is yellow wdth a black tip : the 

 nectaries are dull yellow with black tips : the legs are yellow ; 

 the feet and the tips of the shanks are black. 



Found in September, near Newcastle, by Mr. Hardy. 



The viviparous winged female. The body is black and rather 

 small : the borders and the underside of the fore-chest and the 

 abdomen are dark yellowish green; the disc of the latter is 

 black : the feelers and the nectaries are black, and the latter are 

 nearly one-fifth of the length of the body : the legs are yellow ; 

 the feet and the tips of the thighs and of the shanks are black : 

 the wings are colourless and very much longer than the body ; 

 the wing-ribs and the rib-veins are pale yellow ; the brands and 

 the veins are brown. 



Length of the body | line ; of the wings 2 lines. 



84. Aphis Tussilaginis, n. s. 



The viviparous wingless female. This species was found in the 

 latter part of October near Lancaster on Tussilago Farfara, The 

 body is large, convex, narrow, linear and brown : the head is 

 black : the feelers are pale yellow, and as long as the body ; the 

 tips of the joints are black : the mouth is pale yellow, and reaches 

 the hind-hips ; its tip and the eyes are black : the nectaries are 

 pale yellow, black at the base and at the tips, and as long as 

 one-fourth of the body : the legs are long and pale yellow ; the 

 knees, the feet, and the lips of the shanks are black. While 

 young it is linear pale greenish yellow, and has a large lively 

 green spot in the middle of the body. 



1st var. The abdomen is yellowish brown : the feelers arc 

 black, pale brown towards the base, and nearly twice the length 

 of the body : the nectaries are yellow with black tips ; they are 

 also black at the base, where there is a large spot of the same 

 colour. 



The viviparous winged female. The body is brown : the borders 

 and the underside of the fore-chest are pale green : the abdomen 

 is pale green with a row of narrow black bands along its back, 

 and a row of black spots on each side : the feelers are black, and 

 a little longer than the body : the mouth is pale yellow ; its tip 

 and the eyes are black : the nectaries are yellow with black tips, 

 and as long as one-fourth of the body : the legs are long and 

 yellow ; the hind-thighs except the base, the feet, and the tips 

 of the thighs and of the shanks are black: the wings are colourless; 

 the wing-ribs and the rib-veins are pale yellow ; the wing-brands 

 and the other veins are brown. 



