140 



(AlO in flg. 243-245). At its left anterior margin it has a ribbon-like extension (L4d' in 

 fig.241, 242, 244, 245) running posteriad along the left edge of the Ive-pouch (7 in 

 fig. 242). The distal sclerite branches into the sclerotisations of paa and pda. According 

 to their assumed origin, the right-dorsal parts of the via-sclerotisation (including AlO and 

 paa) are designated L2E', the left-ventral parts (including L4d' and pda) are designated 

 L4N'. (The boundary between L2E' and L4N' is perpendicular to the division into a basal 

 and a distal sclerite). 



The ventral wall of the Ive-pouch (fig. 246, including the ventral wall of the ejaculatory 

 duct D) is, except for the L2D'-extension 28 and the sclerotisations within the Ive- 

 apodeme, membranous. To the posterior it continues into the dorsal wall of a completely 

 membranous lobe (via in fig. 245-247, 239a). The ventral wall of via is part of the ventral 

 wall of the left complex (fig.239a, 247). Sclerite L4V' (fig.239a, 247) occupies the 

 anteriormost ventral wall; its right part extends onto and completely sclerotises the very 

 long process nla (fig. 239a, 247, 248). nla has a broad base but soon narrows to become 

 whip-shaped. 



Right phallomere 



Sclerite R3' occupies the anterior (right-)ventral wall (fig. 253-257); its lateral and anterior 

 margins form a groove-like apodeme (age in fig. 253, 256, 257). At its left and right ends 

 R3' has extensions to the posterior (40 and 41 in fig. 253-257). Posterior to the left part 

 of R3' sclerite R2' adjoins; the two sclerites have a broad articulation (A7 in fig. 255, 

 257). R2' is a plate of irregular shape, which as a whole slightly bulges posteriad (fig. 254- 

 257). It bears a tooth (42 in fig. 254, 255, 260) projecting dorsad and a horseshoe-shaped 

 bulge with small spines (43 in fig. 254, 255, 260; seen from inside in fig. 256, 258). 

 Posterior to the central part of R3' the ventral wall of the right phallomere curves dorsad 

 and slightly anteriad to form a narrow, groove-like central invagination (cbe in fig. 253- 

 256; compare fig. 257 and 258), whose left-ventral wall is completely sclerotised by R2'. 

 Sclerite RIN' broadly articulates with the right posterior part of R3' (A3 in fig. 253, 255, 

 257). From the A3-articulation RIN' extends like an arch posteriad, leftward, and anteriad 

 again; it occupies the margins of a broad dorsal lobe fda (fig.253), which is the posterior 

 part of the right phallomere. The left anterior part of RIN' articulates with the left margin 

 of R2' (A6 in fig.253-255, 258); at A6 RIN' turns sharply back to the right (34 in fig.253), 

 and its bristled terminal part lies on a bulge in the posterior dorsal wall of the cbe- 

 invagination (34 in fig.253, 255, 259). 



Figs.245-248: Nahublattella sp. (Blattaria, Blattellidae, Plectopterinae) - All figures show mirror- 

 images of the original preparations. - Left complex in dorsal view; with successive removal of its 

 parts (mainly of dorsal ones); fig.245: hook hla and its base (with sclerite L4U') separated from 

 remainder of left complex and from each other (compare fig. 244); fig. 248: only sclerite L4V' and 

 process nla retained. - Scale: 1mm. 



