22 ' ^BRITISH APHIDES. 



Very large. Long oval. Abdomen pointed. Dull 

 sooty black or greyish black, witli a faint greyish 

 medial stripe. Pro thorax with a blunt tooth-hke 

 process on each side. Two broad pale grey patches on 

 each side of the first abdominal ring, smaller patches 

 on each of the succeeding rings, those at and 

 below the insertions of the cornicles being the largest. 

 Antennge orange red. The seventh joint small, 

 hardly equal to the sixth. The cornicles bright 

 orange, skittle-shaped, with dilated mouths ; very 

 short. Legs orange, with dark tibial points and tarsi. 

 The whole insect pilose. The under side is of obscure 

 greyish green. Rostrum long, reaching to the third 

 cox^. The young insects are black and prettily 

 streaked with grey. Their rostra are longer than those 

 of the adult. 



Winged viviparous female 



Very large, greyish black, pilose. Antennae short, 

 having all joints black except the third and fourth, 

 which are orange. Abdomen with two or more grey 

 dorsal patches. Cornicles bright orange. Legs as in 

 the larva. Eyes dark brown. Wings ample. At the 

 tips there is shown a tendency to a cloudiness of the 

 membrane, as is more decidedly shown in the genus 

 GalUpterus. All the veins are black, and strongly 

 marked. The stigmatic vein much curved downwards. 

 Stigma pale grey. Rostrum long, reaching beyond 

 the third coxee. Its insertion is very near the anterior 

 coxae, somewhat removed from the base of the head. 



convey by tliis term tliat all species of tliis genus of necessity sliall be 

 yellow and black. 



