64 



Annals Entomological Society of America ■ [Vol. XV, 



This position is consistent with Crampton's views as to its 

 relationships with the Plecoptera and Isoptera and probably 

 also the Psocida. 



These relationships are expressed in the accompanying 

 table (Fig. 7). 



Orthoptera 



V 



c 

 Z 



TD ^^ ]r. ^ :E :§ .:s m 

 o <^ o a» 



£ 

 o 



Oictyoptera/ 



<L) 



E 



f 



UJ 



Fig. 7. Phylogeny of Orthopteroid Insects. 



