34 N.S. ENTOMOLOGICAL SOCIETY. 



Frontal Costa — Median carina of face in Orthoptera. 



Genae— Cheeks. 



Glabrous — Smooth not hairy. 



Lateral — At or on the sides. 



Lateral lobes- — Sides of pronotum. 



Metazona — Posterior half of pronotum. 



Median— At or along the centre. 



Maxillary Palps — Jointed appendages borne by the maxillae or second pair of jaws. 



Prosternum- — Segment on ventral side of prothorax, between front pair of legs. 



Prosternal spines — Two small spines on prosternum. 



Prozona — Anterior half of pronotum. 



Sulcus — A groove or furrow. 



Serrate — Toothed like a saw. 



Supra-anal spine — The upper spine or process borne by the male Scudderia at the end 



of abdomen, Fig. XVI., 

 Sub-genital plate — Plate lying directly beneath the genital organs, Fig III D. 

 Sub-globose — Nearly spherical. 

 Saltatorial — Fitted for leaping. 



EXPLANATION OF PLATE IX. 



Fig. I— Scudderia pistillata. (Male). 



A. Auditory organ. 



B. Sub-anal spine. 



C. Cercus. 



Fig. II — Scudderia curvicauda borealis. (Male). 



D. Supra-anal spine. 



Fig. Ill — Conocephalus fasciatus. (Male). 



A. Auditory organ. 



B. Prosternal spines. 



C. Cercus. 



D. Sub-genital plate. 



E. Stylets o,n sub-genital plate. 



F. Stridulating field. 



Fig. IV. — Ceuthophilus maculatus. (Male). 



A, B, C, Pro— Meso — and Metathorax. 



D. Cercus. 

 Fig. V — Dorsal view of cercus of C. fasciatus. 

 Fig. VI — Lateral view of cercus of C. fasciatus. 

 Fig. VII— Sub-genital plate of male C. fasciatus. (Ventral). 



A. Stylets. 

 Fig. VIII — Supra-anal spine of male S. furcata furcata. (Dorsal). 

 Fig. IX — Female appendages of S. furcata furcata. 



A. Cercus. 



B. Ovipositor. 



Fig. X — Supra-anal spine of male S. curvicauda borealis. (Dorsal). 



A. Lateral processes. 



B. Median notch. 



Fig. XI- — Cercus of S. curvicauda borealis. (Dorsal). 



Fig. XII — Female appendages of S. curvicauda borealis. (Lateral). 



A. Ovipositor. 



B. Cercus. 



