STUDIES ON CHROMOSOMES 
79 
Fig. 3 First and second spermatocyte-divisions in the two species of Nezara. 
a, b, first division, hilaris, polar views: c, d, corresponding views of viridula; first 
division, hilaris, side view showing five of the chromosomes in position and the 
other three to the right above; f, corresponding view of viridula; g, middle ana- 
phase, viridula, showing division of Y; A, first division metaphase, hilaris, all the 
chromosomes artificially spread out in series; 7, corresponding view of viridula; 
j, k, second division metaphase, hilaris, polar views; /, m, corresponding views 
of viridula. 
