96 BRITISH APHIDES. 



Colour bright green. Head and thorax black ; pro- 

 thorax with a dark transverse band. Eyes red, large, 

 and prominent. Rostrum well-developed, reaching to 

 the second coxce. Antennge long, the third joint green 

 and tuberculate. Abdomen small, equal only to the 

 head and thorax taken together ; stained at the sides, 

 and at the apex with ferruginous red ; a row of short 

 transverse dorsal lines, and a row of small black dots 

 in each side. Cornicles long, thin, and black. Cauda 

 very small, almost obsolete. Legs short, green, with 

 black femoral and tibial tips. Wings ample and broad, 

 insertions greenish, cubitus and stigma sooty grey, 

 other veins black. 



Incli. Millimetres. 



Expanse of wings 0*260 6'60. 



Size of body 0-070x0-020 l-77xO-50. 



Length of antennse 0-080 2-02. 



cornicles O'OOS 0-20. 



Apterous oviparous female. 



Inch. Millimetres. 



Size of body 0-070 x0'035 1-77x0-88. 



Lengfth of antennae 0-030 0-76. 



&" 



cornicles 0.005 0-12. 



Ochreous yellow. Head broad, eyes red, antennae 

 rather short and brown. Abdomen oval, smooth, 

 suffused with rusty red. Cornicles short, black. 

 Last abdominal ring with two brown genito-anal 

 papillae. Cauda small and green. Legs stout, brown ; 

 the hind tibiae much flattened. Rostrum does not 

 reach to the second coxae. 



By dissection two large eggs were obtained, but 

 some individuals contain four. 



Taken in moderate number during October at Wan- 

 stead, feeding under the leaves of the elder-tree, 

 Sambucus nigra. I believe this is the first notice of 

 its occurrence in Britain. The imperfectly sexed 

 forms had disappeared from the elder for that year. 



