300 



which is roughly the reverse of the hypothesis in 7.4., and (2) the distribution of the states 

 of character (L) would suggest a grouping which is inconsistent with the phylogenetic 

 hypothesis in 7.4. as well as with the hypothesis discussed in the context of the characters 

 (D)-(K). These possibilities have to be tested. 



(D) The presence or absence of the curvature of the right parts of sclerite L2 and of the 

 Ive-pouch 



That the right parts of L2 and of Ive curve dorsad and back to the left (6.2.1., 6.2.4.) has 

 been assumed to be a ground-plan feature of Blattaria. This curvature is present in 

 Archiblatta, Eurycotis, Tryonicus, Lamproblatta, Polyphaga, Ergaula, and Anaplecta but 

 absent in the remaining Blattaria {Cryptocercus and subgroup 2.2.3.2.) and in Mantodea. 



(E) The presence or absence of the nla-process 



The nla-process (6.3.1., 6.3.4.) has been assumed to be a ground-plan element of Blattaria. 

 nla is present in Eurycotis, Archiblatta, Tryonicus, Anaplecta, and probably Nahublattella 

 but absent in the remaining Blattaria (subgroups 2.2.2. and 2.2.3.2.2.) and in Mantodea. 



(F) The presence or absence of the dca-processes 



The dca-processes (6.1.1., 6.1.4.) have been assumed to be ground-plan elements of 

 Blattaria. dca are present in Eurycotis, Archiblatta, Tryonicus, Cryptocercus, Polyphaga, 

 Ergaula, Nahublattella, and possibly Lamproblatta but absent in the remaining Blattaria 

 {Anaplecta and subgroup 2.2.3.2.2.) and in Mantodea. 



(G) The connection or separation of the regions Rlt and Rlc 



In most Blattaria and in the Mantodea Chaeteessa and Sphodromantis the regions Rlt and 

 Rlc are firmly connected, and several Blattaria and Chaeteessa have a distinct edge 16, 

 which has been defined as the border between Rlt and Rlc. This has been regarded as 

 the condition of the common ground-plan of Blattaria and Mantodea (6.7.1., 7.1.). In most 

 Blattaria of subgroup 2.2.3.2.2.2. (6.7.6.) as well as in the Mantodea Mantoida and 

 Metallyticus (6.7.3.) Rlt and Rlc are separated from each other. 



(H) The connection or separation of the regions Rlc, Rid, and Rlv (= the absence or 

 presence of the articulations A8 and A9) 



That Rid as well as Rlv are separated from Rlc by the articulations A8 and A9 (6.7.1., 

 6.7.6.), respectively, has been regarded as a ground-plan feature of Blattaria (7.3.). This 

 separation is present in Eurycotis, Archiblatta, Tryonicus, Lamproblatta, and Cryptocercus, 

 but in the Blattarian subgroups 2.2.2.2.2. and 2.2.3. (6.7.6.) and in the ground-plan of 

 Mantodea (6.7.1.) the regions Rlc, Rid, and Rlv are contained in one sclerite. 



(I) The presence or absence of the tre-tendon and of muscle s8 



The tre-tendon (6.7.1., 6.7.5.) and the s8-muscle (6.9.) have been assumed to be ground- 

 plan elements of Blattaria. tre and s8 are present in Eurycotis, Archiblatta, Tryonicus, 

 Cryptocercus, Polyphaga, and Ergaula (s8 not studied in Archiblatta and Tryonicus) but 

 absent in the remaining Blattaria {Lamproblatta and subgroup 2.2.3.) and in Mantodea. 



