1922] Walker: Structure of Orthopteroid Insects 75 



Plate VIII. 

 (Grylloblattoidea, Phasmoidea, Isoptera, Zoraptera). 



69. GrylloblaUa campodeiformis E. Walk. Right lateral view of terminal seg- 



ments, cxp, spur-like process of right coxite; es, eversible sac arising 

 from left paramere lobe. 



70. Same, left lateral view of terminal segments. 



71. Anisomorpha buprestoides (Stoll). (Phasmoidea). Ventral view of terminal 



segments, dpi, dorsal plate; vpl, ventral plate. 



72. Same, dorsal view of penis. 



73. Same, ventral view of penis. 



74. Diapheromera femorata (Say). (Phasmoidea). Dorsal view of penis, ap, 



apodeme arising from base of cl; dpi, dorsal plate; pm (?) cornu, possibly 

 representing the left paramere. 



75. Same, ventral view of penis. Lettering as in Fig. 74. 



76. Termopsis angusticollis Hagen (Isoptera). Ventral view of terminal 



segments. 



77. Same, left lateral view of terminal segments 



78. Zorotypiis hubbardi Caudell. (Zoraptera). Left aterai view of terminal 



segments. (After Crampton). 



79. Same, dorsal view of genitalia. (After Crampton). 



Plate IX. 

 (Blattoidea). 



80. BlaUella germanica (L.). Posterior view of end of abdomen. The thin flap 



of the tenth tergum is elevated and the ninth sternum depressed to show 

 the genitalia. 



81. Same, dorsal view of genitalia and underlying parts, after removal of terga. 



The paraprocts are spread apart. The hooked left paramere is retracted 

 into its sheath (sh). ap s 9, apophysis of 9th sternum. 



82. Same, dorsal view of right paramere. The "clasper" (cl) probably serves 



here only for the attachment of muscles. 



83. Same, ventral view of right paramere. 



84. Parcoblatta pensylvanica (Burm.). Posterior view of end of abdomen, the 



9th sternum cut away to show the genitalia. The left paramere is 

 retracted, only the end of the hook being exposed. Each paraproct 

 bears a copulatory hook, of which the right is large and heavily chitinized. 



85. Same, dorsal view of right paramere. The "clasper" (cl) probably only 



serves for the attachment of muscles. 



86. Same, ventral view of right paramere. 



87. Same, dorsal view of left paramere, partly everted from its sheath. 



88. Same, posterior view of abdomen of young nymph, showing the vestigial 



supra-anal plate. 



89. Periplaneta sp., last stage of nymph. Ventral view of genitalia. 



90. Same, ventral view of genitalia, with penis lobe (gl p) depressed. 



Plate X. 

 (Blattoidea). 



91. Pcriplane'a fuliginosa Brunn. Dorsal view of right paramere. del, dorsal 



vaive of clamper; pml, shaft Oi: paramere, terminating in the processe.=? 

 pmS pm-, etc. 



92. Same, ventral view of right paramer . vol,, ventral valve of clasper. For 



other lettering see Fig. 91. 



