PLATE XVI. 



Phylloxera spinosum Shimer 



Fig. 124. Migratory female — magnified 40 diameters. 



Fig. 125. ' Antenna of migratory female— magnified 250 diameters. 



Fig. 126. Stem-mother— magnified 40 diameters. 



Fig. 127. Antenna of stem-mother— magnified 250 diameters. 



