Figs. 1, 2. 
Fig. 
Figs. 
4-18. 
Figs. 19-25. 
Figs. 26, 27. 
Wincox, -- Caloptenus femur-rubrum. 
PLATE 1. 
Caloptenus femur-rubrum, 
Spermatogonia in dyaster stage. 
Spermatogonium in resting condition. 
Spermatocytes, various prophases of the first division, — spirem, dumb- 
bell, and ring stages. 
Spermatocytes during the first division. 
Polar view of spermatocytes during second division. 
