208 



The sclerotisations are patterned as follows: 

 Sclerotisation of processes pda (= posterior 

 part of region L41 = main part of sclerite 

 L4N) and paa (= region L2d = left posterior 

 part of sclerite L2 or L2E), or of process via 



Regions L2p and L2a [^^„^1 Region 



Fig. 328: Left complex, evolution of 

 main sclerite L2 and sclerite L4N in 

 Blattellidae and Blaberidae. - The 

 central part of the left complex is 

 shown, with pouch Ive, terminal parts of 

 ejaculatory duct (D) and phallomere- 

 gland (P), processes paa, pda, via, and 

 psa, ventral lobe via, and tendon tve. 

 Dorsal views. Patterned areas are 

 sclerotised. Undulate lines are cutting 

 lines through the cuticle. L2D and L2E 

 are separate L2-sclerites, AlO is the 

 articulation between them. Broad 

 arrows represent the muscles 14, 15, 110, 

 and s7 (not investigated in Ectobius, 

 fig.328g). Curved arrows in Parcoblatta 

 (fig.328e) and Blaberus (fig.328k) show 

 the direction of rotations. X and Y are 

 special elements of Loboptera. 

 (Detailed information in 6.2.4.). Species 

 with "S" behind their names have side- 

 reversed phallomeres, and a mirror- 

 image of the original preparation is 

 shown. The branching black lines 

 represent the assumed phylogeny. 



L2m [ I Sclerite LIO (only in Blaberus, fig.328k) 



