23 



Prorhachis nov. gen. {jifio, pdxic.^ 



Allied to Procolpia Stal. Anteniife 22-23 jointed, as long as the 

 abdomen, joints 3-8 broadest and flattened, those beyond punctulate. 

 Eyes very prominent. Tubercle of vortex greatly produced, hori- 

 zontal, the part in front of the eyes being as long as the rest of the 

 head, slightly concave, tapering, the tip narrow but rounded, the lat- 

 eral edge with small, slightly upturned, triangular, median denticu- 

 lations ; viewed laterally it is subquadrate, the front edge very 

 strongly compressed to a thin edge without trace of sulcation. Pro- 

 notum with small rounded distant tubercles, a slisjht, uniform, sub- 

 serrate median carina, the front margin straight, but with a sliuht 

 triangular projection on either side of the middle ; hind border with 

 oblique sides, and a rather large, rounded, median lobe slightly 

 notched posteriorly. Tegmina longer than the abdomen, the front 

 margin considerably and roundly produced near the base ; beyond 

 this the tegmina taper and are accuminate. Hind femora moderately 

 stout, tuberculate, ratlier flattened above; the superior lamina trace- 

 able only by the compressed tubercles, but at the extremity of the 

 joint very prominent, compressed, strongly carinate, abruptly docked 

 posteriorly, the carina slightly produced to a point; hind tibia; with 

 a stout blunt tubercle next the base posteriorly, noticeable only on 

 a side view ; interior spines of same tibise nearly three times as long 

 as the exterior.^ 



22. Prorhachis granulosa nov. sp. 



Dusky feruginous. Antenna^ reddish brown. Head uniform in 



1 Another genus .illied to Procolpia, though not so closely as the foregoing, is 

 ^l^olacris (aioAos, a.KpXs) nov. gen. Antennie of about tlie length of tlie abdo- 

 men, joints 3-T broadest. Eyes very prominent. Tubercle of vertex greatly pro- 

 duced, horizontal, the part in front of the eyes nearly or quite as long as the rest 

 of tlie head, and separated from it by a transverse Sulcation, scarcely concave 

 apically, scarcely tapering, broadly rounded in front; viewed laterally it is trian- 

 gular, the oblique front edge strongly compressed to a thin edge, but delicately 

 sulcate, excepting ab<jve. Pronotum witli lateral carinaj vehich are very stout, 

 coarse, granulate and parallel in tlie posterior half, noticeable only .as a .series of 

 granulations and converging in tlve anterior half; front border angulated on 

 either side of the n>iddle; land border produced and angukited at slightly less 

 than a right angle. Tegmina longer than tlie abdomen, subeqiial throughout, the 

 tip roundly docked. Hind femora slender, a little flattened above, with an equal, 

 very slight dorsal carina; inner row of spines on hind tibi;e excessively long, the 

 upper ones compressed, broadly lamin.ate at the base. Type Xiphicera octomncu- 

 ta<a Scudd. To this genus also belong A'. Ca^eniaw/^ji Feisth. awCl X. oetolunata- 

 Serv. 



