1922] Walker: Structure of Orthopteroid Insects 71 



1906. Van der Weele, H. W. — Morphologic und Entwicklung der Gonapophysen 

 der Odonaten. (Tijdschrift voor Entomologie, 49, pp. 99-198, pis. 1-3). 



1903. Verhoeff, K. W. — Zur vergleichenden Morphologie der Coxalorgane und 



Genitalanhange der Tracheaten. (Zool. Anz., 26, pp. 60-77, 15 figs.). 



1910. Id. — Urber Felsenspringer, Machiloiden. 3 Aufsatz; die Entwicklungs- 



stufen. (Zool. Anz., 36, pp. 385-399). 



1904. Verson, E. — Zur Entwicklungsgeschichte der mannliche Geschlechts- 



anhange bei Insekten. (Zool. Anz., 27, p. 470). 

 1914. Walker, E. M. — ^On a new genus and family of Orthoptera. (Can. Ent., 



46, pp. 93-99. pi. 6). 

 1919. Id. — On the male and immature state of Gryllohlatta campodeiformis Walker. 



(Can. Ent., 51. pp. 131-139, pis. 8, 9). 

 1908. Wesche, W. — The male genitalia of the cockroach, Periplaneta orientalis, 



and their homology with the genitalia in Diptera. (Journ. Quekett 



micr. Club, 2, 10, pp. 235-242, 2 pis.). 

 1893. Wheeler, W. M. — A contribution to insect embryology. (Journ. Morph., 



8, pp. 1-160). 



1911. Zacher, Friedrich.— Studien ueber das System der Protodermapteren. 



(Zool. Jahrb., 30, syst., pp. 303-400, 80 figs.). 

 1903. Zander, Enoch. — Der Stilplan des mannlichen Genitalapparates der 

 Hexapoden. (Diss. Erlang. Ven. Leg. K. B. Fried. Alex. Univ., pp. 1-43, 

 14 figs.). 



REFERENCE LETTERING. 



(For additional lettering, see explanation of figures). 



ar — Arch of endapophysis. pm — paramere, or its main process; 



be — basipodite of cercus. ectoparamere. 



c — cercus. pmb — base of paramere, endoparamere. 



of — caudal filament or telofilum. pmo — opening into paramere. 



ch — copulatory hook. pms — paramere sac. 



cl — clasper. pst — pseudosternite. 



ex, ex 9 — coxite, coxite of 9th segment. ra — ramus of pseudosternite. 



cxx — coxale or united coxites. rl — right paramere lobe. 



cxl, cxr — left and right coxites. s 7, s 8, etc. — sternum of 7th, of 8th 



dl — dorsal lobes of penis. segment, etc. 



ej — ejaculatory duct. sa — supra-anal plate. 



end — endapophysis. sp — spiracle. 



fps — floor of paramere sac. sp gl — lateral glandular pouches. 



gl p — glans of penis or penis lobe. spc — sperm conveyor. 



int s m — interstemal membrane. sps — spermatophore sac. 



int t m — intertergal membrane. st, st 7, etc. — sternite, sternite of seg- 



11 — left paramere lobe. ment 7, etc. 



1st — lateral stylet. stl, stl 7, etc. — stylus, stylus of 7th 



m st — median stylet. segment, etc. 



pa — paraproct. svl — subventral lobe. 



pal — pallium. t 7, t 8, etc. — tergum of 7th segment, of 



pal pi — pallial plate. _ 8th segment, etc. 



pc — postcornua or processes [of [pseudo- v — virga. 



sternite. vl — ventral lobe of penis. 



pe — penis. vs— dorso-median spines of spermato- 



pg — paragenital plate. phore sac. 



