132 Kansas Academy of Science. 



GENERA TETTIGONIELLID^E.-coniinwed. 



D. Vertex and front, in profile, not distinctly limited but rounding 

 into each other. Vertex variously marked but without a dark 

 line on anterior margin ® Tettigoniella 



DD. Vertex and front, in profile, distinctly limited. Vertex usually 

 \ with a dark line on anterior margin Diedrocephala 



CC. Elytra reticulate veined at apex. Lateral carina of pronotum absent. 



Drasculaceph ala 



BB. Posterior margin of pronotum short; ' rather abruptly emarginate. Elytra closely 

 punctured . Lateral carina of pronotum absent Helochara 



GENERA OF GYPONID^. 

 A. Pronotum with a distinct humeral margin (plate I, fig. 1, Hm.). Lateral carina of pro- 

 notum normal. 



B. Humeral and posterior margins of pronotum subequal. Posterior margin nar- 

 rowly emarginate. Pronotum and claval areas coarsely pitted. Profile of vortex 

 and front acute and but very slightly depressed below the anterior margin. 



Xerophloea 



BB. Humeral margin of pronotum less than half as long as posterior margin. Pos- 

 terior margin broadly, gently, emarginate. Pronotum and claval areas neither 

 punctate nor pitted. 



C. Clavus not truncate at tip. Frontal sutures not appearing on the ver- 

 tex Gypona 



CC. Clavus broadly truncate at tip. Frontal sutures attaining the ocelli. 



Penthimia 

 AA. Pronotum without a humeral margin. 



B. Pronotum wider posteriorly than the head. Ocelli about midway between ante- 

 rior and posterior margins of vertex. Lateral carina of pronotum usually ab- 

 rubtly descending back of eye J Bathysmatophorua 



BB. Head as wide as pronotum, Pronotum but little flaring. Ocelli nearer anterior 

 than posterior margin of vertex. Lateral carina of pronotum straight. 



Errlwmenellus 

 GENERA OF JASSID^. 



A. Front widest at base. Clypeus at most but gradually enlarged toward the apex ; usually 

 parallel margined or tapering. 



B. Vertex with a median carina, which also extends down the front. Clypeus 

 tapering Euacavthvs 



BB. Vertex and front without a median carina. 



C. Clypeus tapering to a rounded apex. Vertex not distinctly or subequi- 

 laterally pentagonal. Anterior margin of pronotum produced far be- 

 tween the eyes and nearly straight. Eyes rather prominent. Vertex, 

 and profile of front and vertex, strongly conical. Antennae of normal 

 length Pagaronia 



CC. Clypeus parallel margined or expanded at apex. Vertex distinctly and 

 subequilaterally pentagonal. Anterior margin of pronotum gently 

 curved. Profile of front and vertex usually obtuse. Antennae exceed- 

 ingly long ®Neoccelidia 



AA. Front as wide at clypeus as at base. Clypeus very strongly, abruptly, enlarged at apex. 



B. Vertex cuneiform. Scutellum very small.. . Tinobregmus (Plate II, figs. 1 and 2.) 



BB. Vertex subquadrate. Scutellum very large JasBua (Plate I, figs. 8 and 9.) 



3. Distant (Faun. Brit. India, v. 4. p. 223; 1907) has erected the genus KoUa to include such 

 species of Tettigoniella (tripunctata, geometrica, bifida, etc.) as have the head particularly deep 

 and short. Tettigoniella, as thus limited, would include such species as hieroglyphica and 

 gothica. 



4. These last two genera appear to have no special relationship with each other, and littl« 

 with anything that precedes or follows. 



5. Paraecelidia Baker was founded (Can. Ent., v. 30, p. 292) upon P. tuberculata from the 

 Atlantic coast. It differs from Neocoelidia only in having the clypeus tuberculate near the 

 apex, and is not included here, as this character does not seem to be of generic importance. 



