LIST OF HOMOPTEEOUS INSECTS. 



Var. Reddish brown, broad, short-oval, slightly convex, red to- 

 wards the head and along the middle of the body, which beneath is 

 dull pale red and covered with a white bloom : feelers black, not 

 one-fourth of the length of the body : mouth pale red, with a black 

 tip, reaching the hind-hips. 



Var. Pale green, with a white stripe from the head extending 

 along two-thirds of the back : feelers and legs white ; the former 

 are not half the length of the body : mouth white, with a black tip. 

 When very young it is pale yellow, with two vivid irregular green 

 stripes on the back. 



Var. Feelers whitish, not one half the length of the body : 

 mouth whitish, with a brown tip, extending a little beyond the hind 

 hips : legs whitish ; feet and tips of shanks brown. As it grows it 

 becomes broader, and acquires a red hue, which first appears about 

 the head and the chest, and afterwards overspreads the whole body. 

 When full-grown, the head, feelers, legs, some spots on each side of 

 the thorax, and the greater part of the back of the abdomen are very 

 dark red, and it is covered with white bloom ; mouth pale green, 

 reaching beyond the middle-hips ; its tip is brown. During 

 its growth it exhibits many varieties and shades of colour between 

 green and pale red and dark red, and is sometimes mottled with all 

 these hues. 



The viviparous winged female. Dark brown : abdomen pale 

 brown : feelers pale brown, dark brown at the base, more than half 

 the length of the body : mouth brown : legs pale brown : wings co- 

 lourless, horizontal when at rest, much longer than the body ; wing- 

 ribs and veins brown. 



a — 0. England. (In Canada Balsam). From Mr. Walker's collec- 

 tion. 



Genus 4. PEMPHIGUS. 



Pemphigus, Hartig, Germ. Ent. Zeit. iii. 366, pi. 1, f.21,22. Kalt., 



Weslw. 

 Aphis, p., Linn., Fabr., Rossi, Schrank, Sulz., Gmei, Kirbi/ ^ 



Spence, Fonscol. 

 Eriosoma, Heyden, Mnsleg, Jent/rn. 

 Aphioidcs et Baizongia, Rondani Osservazioni, Src. Nuovi Annaii 



delli Scienze Naturali di Bologna, 1847, 64. 



PART IV. 3 Z 



