North American Phylloxerinae affecting Hicoria (Carya) and other trees . 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. PLATE XVI. PLATE XVII. Phylloxera spinuloida l^ergande, n. sp. Fig. 128. Mature gall - reduced )A,. Fig. 129. Migratory female -magniiied 40 diameters. Fig. 130. Antenna of migratory female—magnified 250 diameters. Phylloxera devastatrix Pfergande, n. sp. Fig. 131. Young
North American Phylloxerinae affecting Hicoria (Carya) and other trees . 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. PLATE XVI. PLATE XVII. Phylloxera spinuloida l^ergande, n. sp. Fig. 128. Mature gall - reduced )A,. Fig. 129. Migratory female -magniiied 40 diameters. Fig. 130. Antenna of migratory female—magnified 250 diameters. Phylloxera devastatrix Pfergande, n. sp. Fig. 131. Young galls in various stages, showing deformation of flowers-reduced 132. Young galls, different stages—reduced 133. Mature galls—reduced ]A,.Fig. 134. Old galls—reduced 135. Antenna of migratory female—magnified 250 diameters. PLATE XVII
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