76 BRITISH APHIDES. 



failed in getting Aphis rumicis to cbange its ordinary 

 food for the broom, Sarothamnus. 



Aphis aucupari^, Buclion. Plate LX, figs. 3 — 5. 

 Apterov.s viviparous female. 



Varies much in form, some being globose,* whilst 

 others are more produced at the tail. Colour brown- 

 ish black or wholly black. Abdomen has a tendency 

 to a dark obscure barring. Eyes, legs, and nectaries 

 black. The whole insect is finely pilose and sparsely 

 covered with a mealy dust, which in the globose form 

 is disposed somewhat in a crescentic shape. Tail very 

 small and obtuse. 



Pup) a. 



Hoary, ferruginous red. Abdomen reddish, which 

 colour becomes somewhat brighter in the neighbour- 

 hood of the nectaries. Wing-cases yellow green, 

 tipped with brown. Legs and antennse slaty grey. 



The larva is furnished with two marked infra-abdo- 

 minal teeth. These larvae were plentiful in the middle 

 of May at Horsham, on the wild service-tree, Pyrns 

 torminaJis, and in June many pupge were found in the 

 same place. The insect may also be found feeding on 

 Sorbus aumi'paria, but it differs in several respects 

 from Aphis sorhi of Kaltenbach. 



I failed to capture the winged form, or to breed it 

 from these pupee. 



* Possibly these are tlie stem-motbers or queen Aphides — the foun- 

 ders of the colony. 



