A I'PEXinX—C'OLEOPTEUA. 59 



which are oljtuso. Scutellnm broader than long, pointcMl beliind, rcguLxrly 

 and very delicately punctured, the sides arcuate. Elytra rather longer than 

 wide, obliquely truncated liehiml, moderately convex, extremely finely asperate- 

 punctate ; the humeral angles not A'ery pi'ominent ; the sides regularly 

 arcuate ; the outer apical angles ri)unded, the sutural angles slightly oljtuse. 

 Pygidium very finely and closely punctured, sparingly covered with very 

 fine yellowish grey pubescence. Underside not quite such a bright metallic 

 colour as above ; prosternum finely coiiaceous ; meso- and metasternum ex- 

 tremely finely punctured. Legs reddish testaceous, claws fuscous. Length, 

 2 J mm. 



This species is allied to Cercometes politus, Reitter (Verh. des naturf. Yer. 

 Briinn, xii, p. 167, 1873), from Colombia and G. Deijrollci, Reitter (^.c. xiii, ]>. 

 100, 1875), from Brazil. Judging fmm the description, it may be distinguished 

 from the former by its lieing of a uietallic green colour instead of dark Vdack, 

 and in having the posterior angles of the protliorax obtusely rounded and not 

 riglit angles ; and from the latter, not only in colour but also in having the 

 protliorax finely punctured and coriaceous on the disc. At first sight it some- 

 what resembles Cercus ahdominalis, Eiicli., but structurally is quite dift'erent ; 

 the claws are strongly toothed at the base, and the labial palpi appear to be 

 four-jointed, th\is agreeing with the genus Cercometes of Reitter. 



Pleuronec'Es, gen. nov. 



Body depressed and rather l>road. Head moderately large, transverse. 

 Eyes rather large, prominent and not very sti'ongly facetted. Antenna3 

 eleven-jointed, the basal joint rather large, the second to fifth narrower, 

 rather shoiter, and of about ecpial length, sixth to eighth much shorter, tei'- 

 minated by a tolerably cijmpact club of three joints. Labrum strongly 

 bilobed. Mandiljles strongly recurved, the apex acute, with four or fi\e 

 teeth on the inner maigin, the last of these teeth rather larger than the 

 others. JMaxilla; with the lobe enlarged in front, the fringe long and some- 

 what bristly, only extending on the inner margin for about one-thii'd of its 

 length ; maxillary palpi four-jointed, the basal joint moderately large, the 

 second slightly longer and much narrowei' at the base than at the apex, the 

 third decidedly shorter, the apical longer than the second and third together, 

 rounde<l at the extremity. Lalnaim small ; the laljial palpi appear to Ije 

 three-jointed, the first very small, the second much longer and broader, the 

 terminal joint as long and rather broader than the second. Protliorax trans- 

 verse, narrowly margined, fi'ee at the base and not overlapping the elytra. 

 Elytra truncate 1)ehind, leaving the pygidium wholly exjaosed. Prosternum 

 I'ounded behind the cox«. Metasternal episternuni distinctly pointed liehind. 



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