ORTHOPTERAN SPERMATOGENESIS 723 



of chromatids is shown in cross-shaped chromosomes such as are 

 found in many species including the Stenobothrus-hke form I 

 have studied (fig. 64, f). 



The result of the second spermatocyte mitosis is therefore 

 neither entirely equational or segregative, for certain ones of the 

 chromosome complex are separated in one way, others in the 

 opposite way. 



SPECIES OF ORTHOPTERA WHOSE SPERMATOGENESIS HAS BEEN 



DESCRIBED 



1. Acrididae 



Artom, C. ('09) Stavironotus 



Brunelli, G. ('10) and ('11) Tryxalis nasuta 



Buchner, P. ('09) Hippiscus sp. 



Biitchli, O. ('71) Acridia 



Carothers, E. ('13) Brachystola magna, Arphia simplex, Trimerotropis suffusa, T. 



schaefferi, T. agrestus, T. maritima 

 Carnoy, J. B. ('85) Oedipoda coerulea, Acridium lineola, Stenobothrvis viridulus 



or bicolor 

 Davis, H. S. ('08) Arphia tenebi'osa 



Chortophaga viridifasciata 



Dissosteira Carolina 



Hippiscus tuberculatus 



Stenobothrus curtipennis 

 Gerard, Pol ('09) Stenobothrus biguttulus 

 Giglio-Tos, S. ('08) Pamphagus marmoratus 

 Granata, L. ('10) Pamphagus marmoratus 

 Hartman, Frank ('13) Schistocerca alutacea 

 McClung, C. E. ('00) Hippiscus phoenicopterus 



('05) Hesperottetix speciosus 



Hesperottetix viridis 



Hesperottetix prat.ensis 



Mermiria bivittata 



Chortophaga viridifasciata 

 Meek, C. F. U. ('11) Stenobothrus viridulus 



('12a) Stenobothrus viridulus. S. bicolor, S. parallelus 



('12b) Stenobothrus curtipennis 



Stenobothrus parallelus 



Stenobothrus viridulus 



Stenobothrus bicolor 

 Minot, C. S. ('80) Melanoplus femur rubrum 

 Montgomery, T. H. ('05) Syrbula acuticornis , 



Nowlin, Nadine ('08) Melanoplus bivittatus 

 Pinney, Edith ('08) Phrynotettix magnus 

 Robertson, W. R. B. ('08) Syrbula admirabilis 



