Maine; aphids of the rose: family. 261 



not vivid green, median line dark green, sutural lines dark 

 green ending in marginal green dots, cornicles dark, cauda 

 green. 



Aphis cerasifoliae is gregarious on the ventral surface of 

 the terminal leaves badly curling and deforming them. A 

 copious amount of honey dew is present, and ants are usually 

 found attending a colony of this species. 



Maine collections — 3-04; 21-04; 19-06; 11-08; 87-09. 



Aphis tube;rcui,ata n. sp. Red and Black Aphis of Cherry. 



(Figure 89, D-F. Figure 95, A. Figure 97, A.) 



A striking species was collected August 5, 1913 at Orono 

 in dense red masses on new growth shoots of Black cherry. 

 (Pnmus serotina). It did not occur on the leaves. The head, 

 Cauda, cornicles, legs, prothorax and mesothorax are black 

 with white ''bloom" and the rest of the body showy red. My 

 1914 collection notes give for this species, — the body of Aphis 

 tuber citlata is a light mahogany red touched with a soft very 

 slight "bloom" of white pulverulence. Genital and anal plates 

 black, lateral margin of abdomen marked with a row of a 

 few indistinct dark dots. Cauda ringed with white pulveru- 

 lence near base. 



Alate female. Antenna with III having 20 or more large 

 sensoria irregularly arranged, IV with about 6 sensoria; V 

 with 4 to 6 sensoria besides the terminal one, relative length 

 of segments shown in the figure; beak extending about second 

 coxa; cornicle about two and one half times the length of 

 tarsus, straight, cylindrical and heavily imbricated; cauda 

 about half the length of cornicles and shaggy; wings with 

 veins all uniformly dark and heavy and all shadowed along 

 their course. 



The prothoracic tubercles are broad and blunt and unusually 

 large for the genus. The lateral tubercles of the abdomen 

 are similar in contour but are not so large. 



Apterous female. The antenna of this form is shown in 

 D. Figure 89. It is without sensoria except for those usual 

 for V and VI. 



