288 Annals of the Carnegie Museum. 



e. Tegmina sublinear or narrow, the apex obtuse, the radial veins 

 separated. (Pronotum with its lateral lobes roundly inserted. 



Anterior tibiae spineless above) Stenophyllia Brunner. 



ee. Tegmina ovate, acuminate, the radial veins touching. 



/. Deflexed lobes of the pronotum attached by an acute angle, 

 their posterior margin obliquely truncate, the humeral sinus 

 nearly absent. Wings abortive. Anterior tibiae nearly 



spineless above Marenestha Brunner. 



ff. Deflexed lobes of the pronotum attached by a rounded angle, 

 their posterior margin rounded and the humeral angle dis- 

 tinct. Wings although shorter than tegmina, well de- 

 veloped, subgenital plate of cf elongated, narrow. 



Cosmo phyllurn Blanchard. 

 A A. Anterior coxae armed externally with a distinct spine. 



b. Fastigium of the front laminately greatly produced. (Tegmina broad, 



femora and tibiae laminately dilated) jEgimia Stal. 



bb. Fastigium of the front not produced, or at most forming a short transverse 

 plate. 

 c. Vertex elevated into a tooth or dentiform crest, which is remote from the 

 fastigium. (Femora and posterior tibiae frequently lobate or lengthily 

 spined.) 

 d. Posterior femora spinulose, not lobate, nor lengthily spined. 



e. Antennae nodose. Fastigium of the vertex compressed, acumi- 

 nate. Posterior femora with the genicular lobes obtuse. 



Hammatofera Brunner. 



ee. Antennae smooth, annulated with fuscous. Fastigium of the 



vertex depressed, sulcate. Posterior femora with the genicular 



lobes lengthily dentate Oxyprordla Giglio-Tos. 



dd. Posterior femora either lengthily spined or lobate. 

 e. Hind femora and tibiae lengthily spinose. 



/. Pronotum unarmed with spines Machitna Brunner. 



ff. Pronotum armed above both in front and behind with a long, 



compressed spine Markia White. 



ee. Hind femora lobate. Hind tibiae armed with triangular teeth. 

 /. Vertex elevated into a spine. Antennae with their first joint 



smooth Dysonia White. 



ff. Vertex elevated into a crest. First joint of the antennae armed 

 internally with a heavy, robust, obtuse tooth. 



Paraphidnia Giglio-Tos. 

 cc. Vertex plain or tumescent, not spined. 



d. Middle tibiae laminately dilated apically, compressed, including a 



long spine Cenlrofera Brunner. 



dd. Middle tibiae of normal form or slightly dilated basally. 



e. Ovipositor very short, always much less than the pronotum in 

 length, the valves free or separated, rather smooth and without 

 decided marginal teeth. Subgenital plate of cf either produced 

 into narrow lobes imitating a stylus or sharpened stick, or sub- 

 truncate at apex. 



