68 BRITISH APHIDES. 



fuscous brown, or wholly rich brown. Sometimes 

 with darker bands and spots on the dorsum, accord- 

 ing to Kaltenbach and Koch. Cornicles black. Cauda 

 brownish. Wings finely iridescent ; insertions, cubitus, 

 stigma, and veins amber-yellow. Legs as in the 

 apterous female. 



Numerous during June and July, on the leaves and 

 stalks of Hieracium sponchjliuni, Norwich. Koch 

 found them crowding the stipules of the lower leaves. 

 Kaltenbach notices the above changes of colour as 

 the individuals become as^ed. 



Aphis faefar^, Koch. Plate LVII, figs. 3, 4. 



Apterous viviparous female. 



Koch describes this larval form in his Monograph 

 as flesh-red, oval, and dull. It has a remarkably long 

 rostrum, which reaches to the commencement of the 

 ring bearing the cornicles. It feeds underground on 

 the root of Tussilago farfarce. 



Winged viviparous female. 



Inch. Millimetres. 



Expanse of wings 0*350 8*8. 



Size of body O'lOOxO'OSO 2-54xl'27. 



Length of antennae 0*080 2*02. 



cornicles 0-015 0*38. 



„ rostrum 0*055 1*39. 



Large, shining. Rich ochreous or bright yellow, 

 with greener tones of colour towards the apex of the 

 abdomen. Head, antennae, and thoracic lobes warm 

 brown. Abdomen with three brown spots on either 

 side, and a large broad one between the cornicles. 

 Wings imbricated or finely punctured at the tips, rather 

 fuscous and iridescent ; insertions pale yellow, veins 

 black, stigma grey. Legs ochreous, except at the 

 tibial and tarsal joints. The older specimens are 



