_ 1878.] 89 [Seudder. 
The very attenuated form of this species gives it a certain general 
resemblance to the Acridian genus Leptysma Stal. 
94. Conocephalus prora. A small and very slender species; 
brown, the fastigium immaculate, or, possibly, the extreme tip brown. 
(The specimen at hand has been in alcohol and is a little browner at 
the tip). Fastigium of great length and slenderness, the basal half 
equal, the apical tapering gently to a very blunt, broadly rounded, al- 
most excised tip, the whole extending nearly as far beyond the front 
edge of the eyes as the length of the posterior lobe of the pronotum; 
the upper surface is gently convex, scabrous, more distinctly so than 
the heavily punctured head and pronotum, and its lateral limits are 
marked by a scarcely noticeable carina; beneath rounded, similarly 
scabrous, with no depending basal tooth, the median line being in com- 
plete continuity with the face and hardly separated from it by the 
frontal incisure, since this is almost completely closed. Pronotum 
very slender, the disk scarcely enlarging posteriorly, the posterior 
nearly three times longer than the anterior lobe, the lateral lobes de- 
flected almost vertically, the lateral carina distinct but well rounded. 
Teomina very slender, the apex regularly rounded. Hind femora 
very slender, armed on apical half beneath with a few oblique spines; 
fore and middle femora unarmed; hind legs short, the tibie being 
less than half as long as the wings. Ovipositor rather short, about as 
long as the hind tibize, not reaching the tips of the tegmina. 
Length of body, 27.5 mm.; of fastioium beyond the front of the 
eyes, 3.25 mm.; of pronotal disk, 5 mm.; of tegmina, 36 mm.; of 
hind tibie, 15 mm.; of ovipositor,16 mm. 1. Palvon, San Ge- 
ronismo, Nicaragua, MeNiel. 
This insect belongs in the same group as that last described. 
95. Conocephalus acutulus. <A small and very slender 
species, brown, marked with a few obscure fuscous dots along the 
edges of the tegmina, the fastigium apparently immaculate. Fasti- 
gium of great length and slenderness, tapering regularly and gently 
to a blunt tip, reaching half as far beyond the front edge of the eyes 
as the length of the posterior lobe of the pronotum; the upper surface 
is flat, scabrous like the head and more densely scabrous than the 
pronotum, its lateral margins angulate; beneath rounded, faintly 
scabrous, shining, with a basal triangular blunt tooth of moderate 
size, making the lateral view of the lower surface a little concave, 
and separated from the front by a pretty wide frontal incisure. Pro- 
notum slender, the dise enlarging regularly and gently, the posterior 
