Mr. F. Walker's Descriptions of Aphides. 391 



85. Aphis Dianthi, Schrank. 



Aphis Dianthi, Schrank, Faun. Boic. ii. 114. 1213; Kalt. Mon. 

 Pflan. i. 42. 29. 



A. vulgaris^ Kyber, Germ. Mag. i. 



A. Rapce, Curtis, Journ. Roy. Agric. Soc. iii. 53. pi. C. fig. 1-3. 



A. dubia, Curtis, Journ. Roy. Agric. Soc. iii. 54. pi. C. f. 4. 



A. vastator, Smee, The Potatoe Plant, &c. 81. 



A. Solanit Kalt. Mon. Pflan. i. 15. 5. 



Dianthaphis, Amyot, Ann. Soc. Ent. Fr. 2*^^ serie, v. 477. 



The viviparous wingless female. The body is small, oval, dull, 

 rather flat, pale yellowish green ; it has a row of punctures and a 

 slight rim on each side : the feelers are pale yellow, black towards 

 the tips, and a little more than half the length of the body : the 

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

 are pale yellow with black tips, and as long as one-sixth of the 

 body : the tube at the tip of the abdomen is also pale yellow with 

 a darker tip : the legs are pale yellow and moderately long ; the 

 knees, the feet, and the tips of the shanks are black. 



1st var. The body is mottled with red. 



2nd var. The feelers are longer than the body ; the tips of the 

 latter joints are darker : the nectaries are as long as one-fourth 

 of the body : the legs are pale yellow ; the tips of the feet are 

 darker. When young it is pale yellow, linear and flat. 



3rd var. The body is pale red. 



4th var. Body rose-colour : the head is almost white : the 

 limbs are white : the eyes, the feet, the tip of the mouth, and the 

 tips of the nectaries are black : the feelers are nearly as long as 

 the body; the nectaries are one-fifth of its length. 



5th var. The body is pale yellowish green, tinged with red : 

 the feelers are a little shorter than the body : the nectaries are as 

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

 the feet and the tips of the shanks are black. 



6th var. The body is pale red, slightly streaked with black : 

 the head is yellow : the feelers and the mouth are pale yellow 

 with black tips, and the former are longer than the body : the 

 nectaries are pale yellow, and as long as one-fourth of the body ; 

 its tip and the eyes are black : the legs are yellow ; the knees, 

 the feet, and the tips of the shanks are black. 



7th var. The body is pale whitish green : the feelers are pale 

 green, black towards the tips, and much shorter than the body : 

 the eyes are dark red : the mouth and the nectaries are pale green 

 with black tips : the legs are pale green : the feet and the tips of 

 the shanks are darker. On Sonchus. 



8th var. The body is grass-green and shining : the head is pale 

 yellow : the feelers are white, black towards the tips, and rather 

 more than half the length of the body : the mouth is white with 



