Figs. 100, 191. 
Figs. 192-195. 
Figs. 196-200. 
Vig. 201. 
Figs. 202-990. 
Figs. 221-229, 244. 
Figs. 230, 232-236. 
Fig. 231. 
Figs. 237-241. 
Figs. 242, 243. 
Wincox. — Spermatogenesis. 
PEATE V. 
Caloptenus femur-rubrum. 
Spermatocytes, second division. 
Spermatocy tes, first division. 
Spermatid metamorphosis. 
Spermatocyte just before ring condition. 
Degenerating cells. 
Spermatocytes, preparatory to first division. 
Spermatids. 
Spermatocyte, second division. 
Spermatocytes, first division. 
Spermatocytes, ring formation. 
