Sex Determination in Phylloxerans and Aphids 281 
TABLE I—Continued. 
NO. o oc 2 NO. 6 a5 2 
OF SIZE 3 pe Fi ie 2 OF SIZE Fe po } a 2 
GALL Be |He| & A || Ga H |e] & A 
87 small iA, || I 128 small 5 
88 9 2 129 small 4 
89 | very small 9 130 small 3 
‘go | very small 30 3 131 small 29 2 I 
91 big ato || = 2 132 medium 14 
92 big 53 133 medium 34 
93 big 35| 10 134 medium 21 
94 7h os 135 small 9 
96 40| — 136 small 7 
97 medium 13 3 I 137 medium 22 
98 medium 23 2 138 | *medium 27 
99 medium 9 I 139 medium 26)| 4 2 
100 small 6 140 medium 33 
IOI small 4 141 medium 16 
102 small 7 142 medium 25 
103 small 7 143 medium 13 
104 small 4 144 medium 87 8 18 
105 small 7 145 small 5 I 
106 small 3 I 146 small 8 
107 medium 35 7 I 147 small 24 
108 medium ro rea 1 || 148 | — small 28 
109 medium 12 e) 2 149 _ big 75| 10 9 
110 medium 12 4 I 150 small 9 
IIl medium 10 151 medium 79 4 II 
112 | medium— | 39) — 2 || 152 | medium Bz. & 
113. | medium— 14 6 I 153 medium 74 4 12 
114 | medium— 10 ° I 154 medium 72 6 2 3 
115 | medium + 60 7 155 medium 44 2 ii 
116 | medum+ | 116] 8 156 medium TO ZS ie 23 
117 | medium + | 126 7 3 157 | small (?) 28 5 
118 small 6 I 158 | small (?) 42 4 4 
119 medium 72 7 159 small (?) 165 9 I 3 
120 28 3 2 160 | small (?) 56 5 8 
121 small 9 2 161 small (?) 44 4 
122 small 14 3 I 162 small (?) 61 4 4 
123 small 2 _ 163 | small (?) 4o| 5 2 
124 small 5 I 164 size (?) PSA Pes 4 
125 small II 2 165 size (?) 62 | 17 6 
126 small 3 166 sizes) a ue aqnie 1 I 
127 small 13 cobs 
*In No. 138 two stem-mothers were present. 
