Plate IV 



Cicindela vulgaris {Fam. Cicindelida) 

 Fig. 87 Spermatogonium, metaphase, trwenty-two chromosomes. 

 Fig. 88 First spermatocyte, metaphase. 



Lema trilineata (Fam. Chrysomelidce) 

 Fig. 89 Spermatogonium, thirty-two chromosomes. 

 Fig. 90 Growth stage. 

 Fig. 91 First spermatocyte, metaphase. 

 Fig. 92 Second spermatocytes, equatorial plates. 



Doryphora clivicolis {Fam. Chrysomelida) 

 Fig. 93 First spermatocyte, metaphase, seventeen bivalents, Aj and /ij ^^^ unequal pair of hetero- 

 chromosomes. 



Fig. 94 First spermatocyte, late prophase. 



Figs. 95 and 96 Second spermatocytes, equatorial plates. 



Chrysochus auratus {Fam. Chrysomelidte)- 

 Fig. 97 First spermatocyte, metaphase. 

 Fig. 98 First spermatocyte, anaphase. 

 Fig. 99 First spermatocyte, equatorial plate. 



Haltica chalyhea {Fam. Chrysomelida) 



Fig. icx> Spermatogonium, metaphase, twenty-two chromosomes. 



Fig. loi First spermatocyte, prophase. 



Fig. 102 First spermatocyte, later prophase. 



Figs. 103 to 106 First spermatocytes, metaphase. 



Fig. 107 First spermatocyte, anaphase. 



Fig. 108 A pair of spermatids, early stage. 



