Bruner: Saltatorial Orthoptera. 61 



Four males and two females of this beautiful insect, were collected 

 at Cayenne, in February, March, and April, 191 7. C. M. Ace. Nos. 

 5873 and 5897. 



III. Cornops pelagicum sp. nov. 



There is a female of what appears to be still an additional species 

 of Cornops among the material now being studied. It was taken on 

 Oucatopi Island by S. M. Klages in June, 1918. The description 

 follows: 



Medium in size; rather robust; the tegmina and the wings de- 

 cidedly shorter than in such species as longipenne, ignotum, insulare, 

 and paraguayense, with all of which it agrees fairly well in size. Head 

 short, the front not very oblique, viewed laterally a little rounded, 

 strongly and closely punctured; fastigium of the vertex short and 

 wide, almost twice as wide at the base as the length, the lateral 

 edges straight, the apex blunt, its disc depressed and provided with 

 a wide longitudinal sulcus; antennae slender, filiform, about reaching 

 the apex of the pronotum; the frontal costa fairly prominent, widest 

 above the base of the antenna; and evenly and gradually narrowing 

 below where its sides meet and terminate just before reaching the 

 clypeus, profoundly sulcate from a point just above the antennae. 

 Vertex about one and three-fourths as wide as the diameter of the 

 rather large subconical basal antennal joints, but little depressed; 

 occiput short, gently rounded. Pronotum strongly punctate, sub- 

 cylindrical, a little widest behind, the hind margin broadly angulate, 

 the median carina fairly prominent back of the last transverse sulcus, 

 but diminishing cephalad. Tegmina very little longer than the 

 abdomen, their apex rounded. Hind femora robust at base, but 

 slender on the apical half, their genicular lobes elongate and finely 

 acuminate, almost spiniform; the hind tibiae strongly expanded 

 apically, and with the fringe of hairs on their inner margin cjuite dense 

 and noticeable, the spines large and tipped on outer half or third with 

 deep black. Prosternal spine erect, a little transverse, elongate, and 

 broadly rounded at its apex. Valves of the ovipositor short, broad, 

 the outer margin armed with about a dozen small teeth, the inner 

 margin provided near its middle with several, while the bulging disc 

 is thickly studded with them, giving it a sharply granular appearance. 



General color olive-green above, becoming grass-green on the teg- 

 mina. Paler beneath, where the prevailing hue is flavous. Sides of 



