EXPLANATION OF PLATE XV. 
Macrosiphum pisi (Kalt.), p.157. 
1.—Antenna of apterous female. 
2.—Antenna of alate female. 
3.—Cauda and cornicles of alate female. 
Macrosiphum rosaeiformis, n. sp., p.158. 
4.—Apterous viviparous female and young. a = young just emerging. 
5.—Base of antenna of alate female. 
6.—Base of antenna of apterous female. 
7.—Anterior wing of alate female. 
8.—Alate viviparous female, showing pattern on abdomen. 
9.—Cornicle of alate female. 
10.—Cauda of alate female. » 
Macrosiphum rosae (Linn.), p. 161. 
. Ir. -Antenna of alate female. 
12.—Antenna of apterous viviparous female (after Theobold). 
Macrosiphum granarium (Kirby ; Pergande), p. 162. 
. 13.—Antenna of alate female. 
14.—Antenna of apterous viviparous female (after Theobold). 
15.—Cauda of alate female. 
16.—Cornicle of alate female. _ 
17.—Abdomen of alate female. 
