PLATE 2 



EXPLANATION OF FIGURES 



Complexes, arranged as in plate 1, of representatives of the various classes of 

 first spermatocytes in Hcsperotettix viridis. The classes are indicated by the 

 figures at the left, 1 to 6. Euchromosome multiples are arranged between the 

 rows to which their tetrads belong. Not all conditions are represented here 

 but may be found in other figures. Thus the smaller octad of class 4 may also 

 be a ring in some individuals; the smaller ring of class 5 may be a V; and the 

 ring octad in one individual of class 6 is a V. 



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