Tctriginae in the Oxford University Museum. 353 



arcuate, in front strongly roundly produced, behind the middle more 

 largely elevated curvate, backward the margin at the apical fourth in- 

 distinctly quadri- or quinque-undate or subsinuate at the obtuse apex ; 

 superior margin rather widely longitudinally sulcate ; anterior pro- 

 cess subobtuse, the apex strongly bidentate, inferior lateral margin- 

 viewed from above strongly serrate, viewed from the side strongly 

 oblique, substraight or little curvate produced over the head ; pro- 

 notum posteriorly extended distinctly beyond the femoral apices ; 

 lateral lobes posteriorly bisinuate, the upper sinus very shallow, 

 posterior angles strongly oblique, subobtuse and obliquely excised 

 behind. Elytra oblong ; wings not visible. Anterior femora com- 

 pressed-foliaceous, superior carina semdate-undate, below subquadri- 

 lobate, middle femoral carinae above compressed, serrulate-undulate, 

 below strongly quadrilobate, or the two middle lobes fused in one, 

 then trilobate ; posterior femora rugose, superior carina crenulate 

 (in the female bearing four tubercles), and the apex triangularly 

 elevated ; superior area before the knee bispinose, external pagina sub- 

 tuberculate, as viewed from above the inferior external carina strongly 

 trilobate, the first very small, ventral carina strongly quinque-lobate 

 and finely serrate between the lobes. Colour rufescent, infuscate on 

 the pronotum, the rest of body lighter. 



Length of pronotum, $ 11-5 mm. ; posterior femora, 5 mm. 

 £ pronotum, 10-5 mm. ; posterior femora, 43 mm. 



Two examples from Abuthsi, River Niger, Africa 

 (Rosenberg), in the author's collection. 



X. neavei, sp. nov. (Plate XLIX, fig. 2.) 



(See preceding table.) Lateral carinae of frontal scutellum 

 minutely spinulose or denticulate. Pronotum subscabrous-granu- 

 late, highly elevated, very thinly compresso-foliaceous, sides 

 bearing radiating veins, conspicuous when held against the light, 

 superior margin of crest nearly semicircular, but very little sub- 

 angulate-rounded above the middle, the anterior half regularly 

 smoothly curvate, the edge above somewhat widely longitudinally 

 sulcate, little planate, posterior half curvate, but the margin at the 

 apical third part minutely crenulate, and here toward the apex 

 slightly undate and little sinuate above the apex (more distinct in 

 the female), anterior process subobtuse, the front border arcuate 

 and the apex bidentate, and just above in front little denticulate ; 

 inferior lateral borders of anterior process strongly oblique, produced 

 beyond the head, margin substraight, but viewed from above later- 

 ally serrate ; posterior process extended backward little beyond the 



