Mr., F. Walker's Descriptions of Aiyhides. 195 



I should have adopted Capt. Hutton^s MS. name ^' bidens" 

 were it truly descriptive of the shell. The columellar plate ap- 

 pears to have escaped his observation from its minuteness and 

 its backward position in the mouth. 



July 25, 1849. 



XXIII. — Descriptions o/ Aphides. By Francis Walker, F.L.S. 



[Continued from p. 48.] 



71. Aphis Caprece, Fabr. 



Aphis Caprea, Fabr. Syst. Ent. 217. 33; Ent. Syst. iv. 221. 3 ; 

 Syst. Rhyn. 294. 3; Schrank, Faun. Boic. ii. 1. 104. 1179; 

 Gmel. Syst. Nat. i. 2203 ; Stew. El. ii. 110 ; Turt. ii. 703 ; Kalt. 

 Mon. Pflan. i. 109. 84; Ratz. Forst. Ins. iii. 218. 110. 



Aphis Pastinacce, Linn. Syst. Nat. ii. 1. 36. 31 ; Faun. Suec. 

 997; Fabr. Mant. Ins. ii. 315. 13; Ent. Syst. iv.213. 13 ; Syst. 

 Rhyn. 296. 13; Gmel. ed. Syst. Nat. 2202; Turt. ii. 703. 



A. ^gopodiiy Fabr. Sp. Ins. ii. 387. 28 ; Ent. Syst. iv. 217. 

 33 ; Syst. Rhyn. 299. 33 ; Gmel. ed. Syst. Nat. i. 2204 ; Stew. 

 El. ii. 110. 



A. PodagraricEf Scop. Ent. Carn. 399 ; Schrank, Faun. Boic. 

 ii. 1. 110. 



^gopndaphis, Amyot, Ann. Soc. Ent. 2™^ serie, v. 479. 



This species feeds on Salix bahylonica, S. caprea, S. amygdalina, 

 S. alba, Angelica sylvestris, A. archangelica, j^gopodiuni Poda- 

 graria, Charophyllum temulum, C. sylvestre, Apium graveolens, 

 A. Petroselinum, Sium nodiflorum, Heracleum Sphondylium, Pas- 

 tinaca sativa, Conium maculatum, Anethum Foeniculum, Peuce- 

 danum officinale, &c. 



The viviparous wingless female. Pale green, especially on each 

 side, elliptical, flat, and rather small : the front is slightly con- 

 vex, and not notched : the feelers are pale green, and shorter than 

 the body ; their tips are black ; the first and the second joints are 

 not angular ; the fourth joint is much less than half the length 

 of the third, which is rather thick ; the fifth is shorter than 

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

 is very slender and much longer than the fourth : the eyes are 

 black : the mouth and the nectaries are pale green ; the former 

 has a black tip, and the latter are very slightly spindle-shaped, 

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

 the tips of the feet are black. On the willow. 



1st var. Oval, slightly convex, with two vivid green stripes 

 along the back : the feelers are about one-fourth of the length 



13* 



