Mr. F. Walker's Descriptions of Aphides. 45 



the same. In the latter part of autumn the habitation of this 

 species is frequently submerged, and its body is often covered 

 with clay. 



28. Aphis hirtellus. 



Atheroides hirtellus, Haliday, Ann. Nat. Hist. 1838, 189. 



The oviparous wingless female. The body is yellow, rather flat, 

 nearly linear, shining, tuberculated : there are two faint broken 

 light brown stripes along the back on each side, and a row of 

 black spots between them : the tip of the abdomen is fringed with 

 a few hairs : the feelers are black, yellow at the base, and full 

 half the length of the body : the eyes are dark red : the mouth is 

 pale yellow, and reaches the base of the fore-legs : the legs are 

 pale yellow : there is a light brown ring around each hind-thigh 

 very near the tip ; the base of the fore- shanks and the whole of 

 the hind-shanks are light brown ; the feet are black. 



1st var. Bright pale yellow. 



2nd var. Dull buff. 



3rd var. Dark brown. 



4th var. Pale brown with a buff head. 



5th var. Pale yellow, with four rows of pale brown spots along 

 the back. 



The viviparous winged female. The body is brown and bristjy : 

 the feelers are setaceous, pale yellow, and rather less than half 

 the length of the body ; their tips are brown ; the third and fourth 

 joints are long and slender ; the fifth and the sixth are rather 

 shorter ; the seventh is longer and more slender : the mouth is 

 dull yellow : the legs are pale yellow ; the feet and the tips of 

 the shanks are darker : the wings are colourless, or very slightly 

 tinged with pale yellow, and are much longer than the body ; the 

 wing-ribs, the rib-veins and the brands are pale yellow ; the veins 

 are pale brown. 



The wingless male. The body is dark brown or almost black : 

 it has longer feelers than the female, and is sometimes only one- 

 third or even one-fourth of the size of the latter. It sometimes 

 pairs with the female of A. serrulatus. 



Length of the body J-1^ line. 



1st var. Body very dark blackish green. 



Found on grass in the autumn near Lancaster, and near Belfast. 



29. Aphis Cyperij n. s. 



The viviparous wingless female. The body is spindle-shaped, 

 dull green, and rather flat : the feelers are brown, setaceous, and 

 three-fourths of the length of the body ; the fourth joint is about 

 half the length of the third ; the fifth is as long as the fourth ; 

 the sixth is more than half the length of the fifth ; the seventh 



