104 BEITISH APHIDES. 



myosotidis feeds on the ragwort, and therefore it is 

 probable that these two insects are identicaL 



Mr. Walker describes, but does not name, a like 

 insect feeding on Senecio vulgaris in September. See 

 ZooL, vol. viii, Appendix cii, 1850. 



Aphis amygdali, Fonscolomhe. Plate LXXIII, figs. 1 — 5. 



Aphis persicce, Fonsc. 

 — — Kalt., Walk., Koch, Pass. 



With reluctance I have altered the sjoecific name of 

 this insect to avoid the confusion attending the fact 

 that three different Aphides have been called A. 2?ersicce 

 viz. that of Sulzer (Mijzus), that of Schrank {Illiopalo- 

 sijphum), and the present insect of Boyer de Fons- 

 colomhe. ^ 



As the insect attacks the nectarine as well as the 

 peach, I propose that it should be specifically named 

 after the former tree. 



Apterous viviparous female. 



Inch. Millimetres. 



Size of body 0-070x0-040 l-77xl-01. 



Length of antennae 0-040 I'Ol. 



cornicles 0-010 0-25. 



Globose, flat, ochreous, variegated with rich dark 

 brown. Head, prothorax, and thorax, each with a 

 band of brown. Eyes and antennae brown. Dorsum 

 marked with seven or more broad interrupted bars, 

 some of which are confluent ; sides with several large 

 and other small spots. Cornicles short, brown except 

 at their bases. Legs ochreous-yellow, with brown 

 tarsi. Cauda inconspicuous or none. 



Pupa. 

 Green, with ferruginous stains about the head and 



