THE TETTIGIDJ3 OF CEYLON 
125 
7.— Gavialidium alligator , Sauss. 
Very similar to crocodilus but smaller. Vertex similar, like¬ 
wise presenting an acute tooth on each side next to the eyes, but 
the occiput deprived of tubercles. Facial carina distinct below 
the median ocellus. Pronotum having the same form, similar 
angles but more rugose, and less flattened above owing to the 
median carina being more elevated, continuous throughout as far 
as the apex of the process, the latter abbreviated; the median 
carina strongly undulate, lobed, rugose in the first half or even 
beyond; the small anterior prozonal carinae parallel strongly 
elevated, but little or not at all crenulate ; humeral angles armed 
with a tubercle; the lateral carinse before the shoulders very 
distinct, and suddenly interrupted by the posterior sulcus; the 
lateral borders of process very acute, cariniform, but not denti¬ 
culate ; lateral lobes of pronotum strongly rugose tuberculate, 
terminating by three equal lobules ; surface of process very rugose, 
presenting four oblique tubercles in the form of elevated ridges, 
but the lateral margins less distinct than in G. crocodilus . Pos¬ 
terior femora less dentate and stouter, showing moreover on the 
external pagina a small tubercle. Length of pronotum <$, 19 mm.; 
breadth of shoulders 3 mm.; post. fern. 5*4 mm. 
Locality, Ceylon (De Saussure). 
Scelymena Qgavialidium ) alligator , De Saussure (1860, p. 483). 
Gavialidium alligator , Bol. (1887, p. 219). 
Lamellitettix , gen. nov. 
Plate II., figs. 6-6&. 
Related to Mazarredia, Bolivar. Body flattened above, rugose 
gibbocristate, tuberculate granulate. Head little elevated, face 
very slightly retreating, the frontal contour in profile sinuate. 
Vertex subtruncate in front, viewed in front strongly concave, 
viewed from above slightly wider than eye but not so far advanced, 
little frontal carinulae outwardly compresso-elevated acute. 
Frontal costa above between the eyes not advanced, distinctly 
protuberant between the antennae, viewed from in front narrowly 
sulcate, the rami little divergent substraight. Eyes globose 
conspicuously exserted. Antennae unusually long slender filiform, 
articles strongly elongate, inserted just below the eyes, but scarcely 
behind a vertical plane with their anterior borders ; posterior 
ocelli situated between the lower third of the eyes, subobscured 
in profile by the eyes, viewed in front very evident. Pronotum in 
front truncate, posteriorly extended scarcely beyond the wings 
acute, dorsum above flattened, anteriorly constricted ; humeral 
angles distinct carinate, produced very slightly outwards, lightly 
depressed ; lateral lobes of pronotum with distinct sulcations, 
