60 BRITISH APHIDES. 



Apterous viviparous female. 



Inch. Millimetres. 



Size of body 0-170xO-070 4-31xl-77. 



„ antennae 0*080 2-02. 



Cornicles wartlike. 



Long oval, uniformly deep brown. Antennae very 

 slender. Eyes black. Cornicles conical and small. 

 Rostrum about equal the body. Apex hastate. 

 Femora stout. Tibiae curved. Cauda none. Ab- 

 dominal apex setose. 



The young are Hnear, with disproportionately long 

 rostra and hind legs. 



Winged viviparous female. 



, Incli. Millimetres. 



Expanse of wings 0720 18*20. 



Size of body 0'180xO-079 4*56xl-99. 



Leno-th of antennae 0*080 2*02. 





cornicles 0*005 0-12. 



This is one of the largest species comprised in the 

 genus ; the winged form in expanse attaining to three 

 quarters of an inch. Its general colour is of a rich 

 brownish black. Abdomen large, oval, and glabrous. 

 Antennae short and slender, the third joint much 

 tuberculate and as long as the fourth and following 

 joints taken together. Eyes black. Cornicles conical, 

 with large bases. Cauda none. Legs long, particu- 

 larly the hind pair, very hairy, bright orange with 

 black femoral and tibial joints. Tarsi double-jointed 

 and black. Rostrum moderate, reaching to the third 

 coxse only. Wings very long and broad in the middle. 

 Cubitus with broad yellow insertions, which end in 

 long narrow stigmata ; these last attain to one third the 

 length of the wing. The anterior costal nervures of 

 both upper and under wings black, but all the other 

 nervures are orange-yellow. Stigmatic vein nearly 

 straight. 



