1911] 



Cockerell — Scudders Work on Fossil Insects 



183 



Order Mixotermitoidea 



(?) Order Reculoidea. 



Order Protorthoptera. 



Spanioderidae. 



Pachytylopsidse 



(Edischiidae. 



N. Homothetidfe. 

 (Unkno^vTi to Scudder). 



Geraridse. 



Order Protoblattoidea 



N. Palseopterina. 

 N. Hemeristina. 

 N. Homothetidae. 



Gerarina. 



Homothetidse. 



„ . ( include genera placed by 



T, , ^ . -s Handlirsch as uncertain 

 ralseopterina ; _, , , 



(^ Protoblattoidea. 



O. Protophasmida. 



( Hemipteroidea. 



( O. Blattinarise. 



iEtophlebidse (rect. ^thophlebidae). N. Palseopterina. 



J N. 



JN.: 

 In.: 



Protophasmidse. 

 Oryctoblattinidse. 



N. Homothetidse. 



N. Homothetidse. 



N. Homothetidse. 



N. Gerarina 



N. Homothetidse. 



Order Mantoidea* (includes living Mantidse). (Unknown to Scudder as Palaeozoic.) 

 Order Blattoidea* (includes living Blattidae). 



Cheliphlebidse. 



Eucsenldse. 



Gerapompidse. 



Adiphlebidse. 



Anthrocothremmidse. 



Archimylacridse, 

 Spiloblattinidse. 

 Mylacridae. 

 Neorthroblattinidse. 



Poroblattinidse. 



Mesoblattinidse. 



Diechoblattinidse. 



Proteremidse. 

 Order Hadentomoidea. 

 (?) Order Hapalopteroidea. 



O. Blattinarise. 



O. Blattinarise. 



O. Mylacridse. 



Neoblattarise (includes modern cock- 

 roaches). 



0. Blattinarise. 



Neoblattarise. 



Neoblattarise. 



O. Palseoblattarise. 



(Unknown to Scudder.) 



(Unknown to Scudder.) 

 Order Perlaria.* (A Permian genus unknown to Scudder provisionally placed here.) 

 Order Protodonata. 



Palephemeridse. 

 Protophasmida. 

 Paralogidse. O. Protophasmida. 



Order Protephemeroidea. (Not considered by Scudder.) 



Order Plectoptera.* (Three genera of Russian Permian, unknown to Scudder.) 

 Order Megasecoptera. Neuropteroidea. 



Order Protohemiptera. Hemipteroidea. 



Order Palseohemiptera. (Unknown to Scudder.) 



Orders still living are marked with an asterisk. It will be seen 

 that Scudder admitted some of the cockroaches into the group 



Meganeuridse. 



(N. 

 (O. 



