PLATE 2 



EXPLANATION OF FIGURES 



24 Dissosteira on leaves; Melanoplus on leaves, straw, and earth. 



25 Melanoplus on hay scattered over moist earth; Gryllus and Oecanthus on 

 moist earth. 



26 Noctuid sp. on straw. 



27 Noctuid sp., Oecanthus, Gryllus, Platynus, and Silpha on charred wood. 



28 Xyphidium on flour. 



29 Melanoplus on flour. 



30 Dissosteira, Melanoplus, and Silpha on ashes. 



31 Melanoplus on lime. 



32 Melanoplus on dry Ruppia and straw. 



33 Melanoplus on hay. 



34 Oecanthus on pale grass stems. 



35 Oecanthus and Ceresa on sand. 



36 Noctuid sp. on wood. 



37 Xyphidium and Melanoplus on sand. 



38 Melanoplus on earth and dry leaves. 



39 Gryllus on flour. 



40 Gryllus on ashes. 



41 Gryllus on coal. 



42 Gryllus on charred and uncharred wood. 



43 Gryllus on burned paper. 



ABBREVIATIONS 



c, Ceresa bubalus 



d, Dissosteira Carolina 



g, Gryllus pennsylvanicus 

 me, Melanoplus spp. 

 n, Noctuid moth sp. 



0, Oecanthus quadripunctatus 

 p, Peromyscus bairdi 

 s, Silpha surinamensis 

 X, Xiphydium fasciatum 



504 



