APHIS PENICILLATA. 51 



Winged viviparous female. 



Inch. Millimetres. 



Expanse of wings 0*230 5*84. 



Size of body O'OGOxO-OSO l-54x0'76. 



Length of antennjB 0"035 0"88, 



cornicles O'OIO 0*25. 



Dark green, mottled with pale green. Head, neck, 

 and thorax black. Eyes bright red. Antennee rather 

 short; the first three joints greenish; the remaining four 

 black. Abdomen marbled green, globose, and without 

 corrugations. Cornicles and tail green. Legs fine 

 ochreous brown, with dark feuioral and tibial tips. 

 Wings ample, and broad. Cubitus and stigma grey; 

 insertions yellow; veins black. The membrane is 

 often coarse in texture. 



Numerous during June and July on the stinging 

 nettle, Urtica dioica, and U. iirens. Kaltenbach says 

 it frequents the blackberry, Bubus fnUicosus, and B. 

 idceus. Though he appears to have witnessed the 

 union of the sexes, he does not describe the male. 

 The young specimens just born are globose, and of a 

 yellowish white, with black-tipped nectaries. Mr. 

 Walker has taken the insect on the potato, and I have 

 taken it feeding on the gooseberry and on the vegetable 

 marrow. Its food, indeed, is of a mixed character. 



Aphis penicillata, Buckton. Plate LI, figs. 5, 6. 

 Apterous viviparous female. 



Inch. Millimetres. 



Size of body 0-065x0-040 1-64x1-01. 



Length of antennae 0*040 1-OL 



cornicles 0-020 0-50. 



Bright green, rather glaucous, deeply carinated and 

 domed. Antennte, legs, and nectaries pale drab. 

 Genua, tips of antennae, tarsi, and tibial tips, ochreous 

 brown. Tail green. 



