PLATE 24 



EXPLANATION OF FIGURES 



184 to 186 C. curtipennis. Three second spermatocytes in metaphase. Each 

 chromosome consists of an upper and a lower half. The 10.r is present in 

 two cells. Three unequal-armed V's present in each cell. Size relations 

 same as in figures 159, 160. 



187 C. curtipennis. Second spermatocyte in anaphase. 



188, 189 Second spermatocyte from Chorthippus (Stenobothrus) biguttulus 

 after Gerard ('09). Numbers (mine) show similar size relations (except in case 

 of sex chromosome) and association to form three V's as in curtipennis. At no. 

 11 the halves of this part are probably gaping apart, as in no. 10 of figure 186. 



326 



