380 Annals of the Carnegie IMuseum. 



bb. Size smaller. Posterior femora furnished above with a tooth-like lobe. 



Loboscelis Redtenbacher. 

 A A. Pronotum smooth or granulate, never spinose. 



b. Tegmina greatly abbreviated, not extending beyond the metanotum or 

 failing altogether. 

 c. Fastigium of the vertex short and broad, not passing the first antenna] 



joint Dectinomima Caudell. 



cc. Fastigium of the vertex longer. 



d. Fastigium long and curved. The ovipositor at base broad, strongly 



curved Acanlhacara Scudder. 



dd. Fastigium of the vertex globular, carinated below. Ovipositor 

 narrow, acuminate, much longer than the abdomen, naturally 



straight, with parallel edges Dcedalus Redtenbacher. 



bb. Tegmina fully developed or somewhat shortened, but not rudimentary. 

 c. Prosternum smooth. 



d. Cheeks ruguloso-granulose or provided with tubercles. 



e. Fastigium of the vertex elongate, acuminate, or short and spined 

 at middle. 

 /. Middle tibiae furnished above with one to six spines. 



Copiphora Serville. 

 ff. Middle tibiae above spineless. 



g. Ovipositor narrow, long, nearly straight, the apex obliquely 



truncate, acuminate Acanlheremus Karny. 



gg. Ovipositor shorter, broad, with the apex rounded. 



Lajnniceps Bolivar. 

 ee. Fastigium of the vertex short, broad, eared, or trituberculate. 

 /. Fastigium of the vertex trituberculate . . Liromelopum Scudder. 

 //. Fastigium of the vertex provided at sides with tubercles, eared. 



Monesla Walker. 

 dd. Cheeks smooth. 



e. Fastigium of the vertex slightly passing the first antennal joint. 

 /. Pronotum with very prominent and deep transverse sulci. 



Exocephala Serville. 

 ff. Pronotum with the transverse sulci less prominent, not deep. 



Eriolus Bolivar. 

 ee. Fastigium of the vertex greatly surpassing the first antennal joint. 



Gryporhynchns Redtenbacher. 

 cc. Prosternum provided with two spines. 



d. Tegmina abbreviated, about the length of the pronotum. Fastigium 

 of the vertex below without a tooth or carina [Costa Rica]. 



Sphyromelopa Carl. 

 dd. Tegmina and wings fully developed. 



e. Lobes of the meso- and metasternum produced into a spine. 

 /. Fastigium of the vertex broad, blunt. 



g. Pronotum posteriorly strongly produced, rounded. 



Eurymelopa Redtenbacher. 

 gg. Pronotum posteriorly little produced, truncate, or roundly 

 truncate. 



