36 BRITISH APHIDES. 



Bright green, slightly mealy, punctured. Head 

 convex and smooth. Eyes brown. Abdomen long, 

 oval, carinated, and deeply pitted. A row of seven 

 minute spots or pore=marks on each side. Cornicles 

 straight, dark at the tips, and one sixth of the length 

 of the body. Tail conspicuous and green. Antennse 

 short, thick at their bases, ochreous, with dark tips. 

 Vertex and legs slightly pilose. Legs ochreous, with 

 black tarsi. 



Puija. 



Much smaller than the larva, and more mealy coated. 

 Abdominal rings much corrugated. General colour 

 bright green, with a brown head, and dark nectary 

 tips. Wing-cases and thoracic lobes yellow. 



luch. Millimetres. 



Expansion of wings 0*200 5'08. 



Size of body 0-065x0-035 l-64x0'88. 



Lena-th of antennae 0*050 1-27. 



^& 



cornicles 0-020 0-50. 



Head, neck-ring, thorax and its lobes, black. Head 

 broad and convex. Abdomen shining, bright green, 

 with the same marked carination and minute j3ore- 

 marks of the larva. Cornicles long and straight. 

 Colour olive green. Antennee and legs ochreous, pale, 

 and hairy. Rostrum reaches to the second coxse. 

 Tail conspicuous and green. Eyes bright red. 



There are two obvious tubercular spines on the 

 sides of the neck or prothorax, the use of which is not 

 known. Wings rather short and rounded at the tips, 

 with greenish insertions. Veins fine and black. 

 Stigma and cubitus greyish. 



It is exceedingly difficult to reconcile the descriptions 

 of the various insects named Aphis cratcegi by authors. 

 It cannot be said entirely to agree with any of the 

 synonyms I have above appended. Thus, A. cratcegi 

 of Kaltenbach has Uttle or no tail, and the abdomen is 



