APHIS PYRI. 97 



Aphis pyri, Boyer de Foni^colomhe. Plate LXIX. 

 Apterous viviparous female. 



Inch. Millimeti'es. 



Size of body 0-065x0-045 l-64xl-13. 



Length of antennas 0*040 1-01. 



cornicles O'OIO 0-25. 



Very variable in form and colour according to age. 

 Immature specimens are elongated, oval, olive green, 

 with a ferruginous stain at the base of the abdomen 

 and nectaries. Abdominal edges with minute spines 

 and tufts of hair. Head broad, eyes red, antennas and 

 cornicles warm olive brown. Legs ochreous green. 

 Tail conspicuous. 



Adult specimens are globose, very broad between 

 the nectaries, slightly mealy. By the naked eye sooty 

 black, but under a lens, with a good light, deep, ginger- 

 brown or olive {Isabellgelh, Koch). Abdomen with 

 pitchy stains. Legs and antennae short and brown. 

 Eyes and cornicles black. Tail almost obsolete. 

 Under-side greyish black. Two strong spines in the 

 prothorax. The whole insect is finely hirsute. It has 

 some resemblance to Aphis Jacohceoi. 



Pupa. 



Pale salmon colour, with reddish stainings on the 

 dorsum. Head broad with two brown patches on the 

 occiput. 



Winged viviparous female. 



Inch. Millimetres. 



Expanse of wings 0*200 5-08. 



Size of body 0-065xO-025 l-64x0-62. 



Length of antennae 0*050 1*27. 



cornicles 0*007 0*17. 



Rather small ; warm sienna-brown. Head, thoracic 

 VOL. II. 7 



