304 FOREST ENTOMOLOGY. 



coloured mealy powder. Eyes black ; antennae, legs, and cornicles 

 yellow, the last being rather dilated at the base. 



The pupa is of a greenish or black colour. The prothorax is 

 partially green, varying to light olive, and the abdominal portion is of 

 a shining black colour. Eyes and cornicles black ; antennae, and legs 

 olive-green. 



In the winged viviparous female the whole body is of a shining 

 black colour, and brightened here and there with lightish spots. 

 Antennae, eyes, and legs lightish-brown. Wings rather large, with 

 somewhat conspicuous dark stigma. 



Aphis euonymus (Fabr.) 



This insect causes the shoots of Euonymus europceus to form a sort 

 of rosette, very much after the manner of the shoots on wild cherry. 

 The insects cluster under the rolled leaves, and both apterous and 

 winged forms are either a very dark-brown colour or otherwise wholly 

 black. 



Aphis HEDERiE (Kalt.) 



This insect is often found very plentifully on ivy, and clusters of 

 them may be discovered during the winter months where the position 

 is rather warm. It is dark -brown or blackish colour, and it is said 

 that the species found on holly is precisely the same insect. 



Aphis abietina (Walker). 



This insect is often found very plentifully on spruce from May 

 onwards throughout the summer. The apterous form is a bright- 

 green colour. The abdomen is somewhat elongated, and the cornicles 

 rather long. The eyes are red. The winged form is rather small, 

 and also of a light-green colour. The colour of this insect is some- 

 what variable, but it is easily recognised from being associated with 

 the spruce, and by the seven -jointed antennae and the forking of 

 the wings. 



During the winter months the apterous females of this species, 

 which give rise to the summer's brood, may be found amongst the 

 leaves of spruce-trees. 



