Mr. F. Walker's Descriptions of Aphides. 197 



transparent, and at length appear like very fine black gauze." — 

 Dr. Richardson. 



46. Aphis Sonchi, Linn. 



Aphis Sonchi, Linn. Syst. Nat. ii. 735. 15 ; Gmel. ed. Syst. 

 Nat. i. 2205 ; Fabr. Sp. Ins. ii. 390. 48 ; Ent. Syst. iv. 220. 53 ; 

 Syst. Rhyn. 302. 53; Geoff. Ins. i. 497. 13; Reaum. Ins. iii; 

 333. t. 22. f. 3-5 ; Schrank, Faun. Boic. ii. 1. 120; Rossi, Faun. 

 Etrusc. 265. 1402; Nouv. Diet. d'Hist. Nat. xxviii. 254; Kalt. 

 Mon. Pflan. i. 28. 17; Sir Oswald Mosley, Gard. Chron. i. 628. 



Sonchtfex, Amyot, Ann. Soc. Ent. Fr. 2 me serie, v. 475. 



Aphis Serratulce, Linn. Faun. Suec. 987 ; Schrank, Faun. Boic. 

 ii. 1. 122; Kalt. Mon. Pflan. i. 26. 15. 



Serratulifex, Amyot, Ann. Soc. Ent. Fr. 2 me serie, v. 475. 



Aphis Jacea, Linn. Faun. Suec. 991 ; Gmel. ed. Syst. Nat. i. 

 2206; Scopoli, Ent. Cam. 148. 403; Schrank, Faun. Boic. ii. 1. 

 124. 1244; Kalt. Mon. Pflan. i. 26. 15. 



Jaceifex, Amyot, Ann. Soc. Ent. Fr. 2 me serie, v. 475. 



Aphis Picridis, Fabr. Syst. Ent. 737. 22 ; Sp. Ins. ii. 387. 26 ; 

 Ent. Syst. iv. 216. 732 ; Syst. Rhyn. 299. 32 ; Gmel. ed. Syst. 

 Nat. i. 5. 2204; Schrank, Faun. Boic. ii. 12l. 1235 ; Kalt. Mon. 

 Pflan. 1. 27. 16. 



Picridifex, Amyot, Ann. Soc. Ent. Fr. 2 me serie, v. 475. 



Aphis Cirsii, Linn. Faun. Suec. 987 ; Gmel. ed. Syst. Nat. i. 

 5. 2205 ; Scop. Ent. Carn. 138. 402. 



Aphis Cnici, Schrank, Faun. Boic. ii. 122. 1239. 



Aphis Solidaginis, Fabr. Sp. Ins. ii. 384. 4 ; Mant. Ins. ii. 

 315. 5; Ent. Syst. iv. 211. 5; Syst. Rhyn. 295. 5; Gmel. ed. 

 Syst. Nat. i. 5. 2202; Hausmann, 111. Mag. i. 442. 5; Kalt. 

 Mon. Pflan. i. 32. 20. 



Solidaginifex, Amyot, Ann. Soc. Ent. Fr. 2 me serie, v. 475. 



Aphis Cardui, Fonscol. Ann. Soc. Ent. Fr. x. 170. 11. 



Aphis Campanula, Kalt. Mon. Pflan. i. 26. 14. 



Aphis Taraxaci, Kalt. Mon. Pflan. i. 30. 18. 



This species feeds on Sonchus oleraceus, S. arvensis, Chondrilla 

 juncea, Leontodon taraxacum, Apargia hispida, A. autumnalis, 

 Picris hieracioides, Hieracium sylvestre, H. sylvaticum, H. muro- 

 rum, H. umbellatum, Crepis biennis, C. virens, Borkhausia fcetida, 

 Lapsana communis, Cichorium intybus, Serratula arvensis, Carduus 

 nutans, C. acanthoides, C. crispus, C. py otocephalus, C. lanceo- 

 latus, Cnicus spinosissimus, Cynara Scolymus, S. Cardunculus, 

 Solidago virgaurea, Centaur ea nigra, C. nigrescens, C. cyanus, C. 

 Scabiosa, C. collina, C. calcitrapa, C. Jacea, Cirsium arvense, 

 C. oleraceum, Onopordum acanthium, Chrysanthemum segetum, 

 Achillea Millefolium, Campanula rotundifolia. 



The viviparous wingless female. It is large, oval, convex, ehi- 



