Plate V 

 Chlorotettrix unicolor and Chlorotettrix vividus {continued') 



Fig. 147 First spermatocyte, anaphase. 



Figs. 148, 149 Second spermatocytes, equatorial plates, containing 8 and 9 chromosomes, respect- 

 ively. 



Fig. 150 Second spermatocyte, metaphase. 



Fig. 151 Second spermatocyte, anaphase. 



Fig. 152 Spermatid, first stage. 



Figs. 153, 154 Spermatid, second stage, half with x, half without. 



Figs. 155, 156 Spermatid, third stage, half with x, half without. 



Figs. 157, 158 Late spermatid stages. 



Fig. 159 Head of mature spermatozoon. 



Fig. 160 Spermatogonial equatorial plate, 21 chromosomes. 



Fig. 161 First spermatocyte equatorial plate, 11 chromosomes. 



Figs. 162, 163 Second spermatocytes, equatorial plates, containing 11 and 10 chromosomes, respect- 

 ively. 



Diedrocephala coccinea {Family Jassida) 



Fig. 164 Spermatogonial equatorial plate, 23 chromosomes. 



Fig. 165 First spermatocyte, postsynapsis stage. 



Fig. 166 First spermatocyte, rest stage. 



Fig. 167 First spermatocyte, equatorial plate, 12 chromosomes. 



Fig. 168 First spermatocyte, metaphase. 



Fig. 169 First spermatocyte, anaphase. 



Figs. 170, 171 Second spermatocytes, equatorial plates, containing 12 and 11 chromosomes, respect- 

 ively. 



Fig. 172 Second spermatocyte, metaphase. 



Fig. 173 Second spermatocyte, anaphase. 



Figs. 174, 175 Spermatids, half without x, half with. 



Diedrocephala mollipes {Family Jassida) 

 Fig. 176 First spermatocyte, rest stage. 



Fig. 177 First spermatocyte, equatorial plate, 12 chromosomes. 

 Fig. 178 First spermatocyte, metaphase. 

 Fig. 179 First spermatocyte, anaphase. 



Figs. 180, 181 Second spermatocytes, equatorial plates, containing 12 and 11 chromosomes, respect- 

 ively. 



Fig. 182 Second spermatocyte, metaphase. 



Fig. 183 Second spermatocyte, anaphase. 



Figs. 184, 185 Spermatids, half without x, half with. 



