PLATE XXI. 



Phylloxera popularia Pergande, n. sp. 



Fig. 159. Apterous female— magnified 40 diameters. 

 Fig. 160. Antenna of same — magnified 250 diameters. 



Phylloxera salicicola Pergande, n. sp. 



Fig. 161. Pupiferous female, dorsal view— magnified 30 diameters. 



Fig. 162. Pupiferous female, ventral view— magnified 30 diameters. 



Fig. 163. Sexual female, ventral view— magnified 100 diameters. 



Fig. 164. Male, ventral view— magnified 100 diameters. 



Fig. 165. Antenna of pupiferous female— magnified 250 diameters. 



Fig. 166. Tip of antenna of pupiferous female - magnified 400 diameters. 



Fig. 167. Antenna of sexes— magnified 400 diameters. 



Fig. 168. Pupiferous females in position— natural size. 



Phylloxera nyssce Pergande, n. sp. 



Fig. 169. Pupiferous female, ventral view— magnified 50 diameters. 



Fig. 170. Sexual female, ventral view— magnified 50 diameters. 



Fig. 171. Male, ventral view — magnified 50 diameters. 



Fig. 172. Antenna of pupiferous female— magnified 150 diameters. 



Fig. 173. Antenna of sexual female — magnified 150 diameters. 



Fig. 174. Antenna of male— magnified 150 diameters. 



