642 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



f/. Pronotum nmooth, thi' transverse sulci profound and deeply im- 

 pressed, the hind l()])e elevated. Head large and strongly exserted. 



Adimantus Stal 



gg. Pronotuni more or less strongly punctate, granulose or rugose, the 



transverse sulci less profound, the hind lobe not elevated. Head 



less exserted. 



/(. Pronotum very strongly rugose, the median carina very strong and 



lobed between the transverse sulci ZygoHKiron Kehn 



/(/(. Pronotun^ granulose or punctate, the median carina less strong, 

 not lobed between the sulci. 

 i. Larger. Green or greenish. Metasternal lobes in the female dis- 

 tant. Frontal costa above the antenn.'e narrowed, evenly ampli- 

 ated throughout. Space between the eyes not narrower than 

 widest part of frontal costa. Posterior extremity of pronotum 

 obtusangulate, the lower lateral edges nearly straight, distinctly 



incrassate Uenax Stal 



il. Smaller. Testaceous, ferruginous, or fuscous. Metasternal lobes 

 in female contiguous. Frontal costa moderately dilated be- 

 tween theantenn;e, plane, punctate; sulcate below the ocellus 

 and continued to the clypeus. Space between the eyes nearly 

 or quite as wide as the frontal costa. Posterior extremity of 

 the pronotum subrotund, the lower lateral edges in front dis- 

 tinctly sinuate. Tegmina densely reticulate. 



Paralnuti^ (iiglio-Tos 



//". Intersi^ace between mesosternal lobes of about equal width with the 



lobes themselves, quadrate. 



g. Frontal costa very prominent and strongly dilated between the 



antennae, plane. Valves of ovipositor slender, long, and straight. 



OrlhoscapJieiis, new genus 

 gg. Frontal costa not unusually prominent nor dilated between the 

 antennae, punctate, or sulcate. Valves of ovipositor normal. 

 h. Body cylindrical or subcylindrical, the sexes subequal in size; 

 lower branch of male cerci nmch longer than the upjier. 



.lotlarr'iK (iiglio-Tos 

 /*/(. Body decidedly compressed, the sexes very unequal in size. The 

 two branches of the male cerci of about the same length. 



Omnllotetti.r, new genus 

 ee. Upper carina of hind femora more or less serrate. Fastigium of the ver- 

 tex horizontally projecting, acuminate. 

 /. Pronotum rugose with the hind margin rounded, the median carina 

 visible throughout. Tegmina and wings somewhat abl)reviated. 



Vertex between the eyes moderately broad Vilerna Stal 



ff. Pronotum at most coarsely punctate on posterior lobe, the hind margin 

 angulate and with the median carina ol)literated between the trans- 

 verse sulci. Tegmina and wings greatly surpassing the abdomen. 

 g. Vertex between the eyes very narrow. Pronotum with tlie lateral 

 carinfc acute, straight, parallel. Tegmina with the apex rounded. 



Hind femora greatly incrassate Xiphioht Giglio-Tos 



gg. Vertex between the eyes rather wide. Pronotum with the lateral 

 carina less acute, straight but evenly divergent posteriorly. Apex 

 of tegmina oblicjuely subtruncate. Hind femora only moderately 



incrassate O.viillldht CJiglio-Tos 



del. Fastigium of the vertex defiexed or horizontal, gently fading into the 

 frontal costa. 



