1874.1 203 



shorter, and 10- (instead of 9-) jointed, but their third articulation is 

 appreciably more abbreviated (being scarcely longer than those which 

 immediately follow it), the 8th one (adjoining the club) is much 

 broader, and, indeed, transverse, and the capitulum itself is very much 

 larger and more abrupt. Indeed, this latter is most remarkable, its 

 first joint being greatly swollen or inflated, and the second one much 

 narrower and shorter, and very oblique]?/ acumitiafe. 



§ III. Antennce ll-articulatce ; articulo 3''° sequentilus vix longiore. 



HOLOPARAMECTJS CONTEACTUS, n. Sp. 



H. elUpticus, suh-convexus, rufo-testaceus, nitidus, {nculo fortissime armatoj suh- 

 tilissime et parce puhescens ; oculis •prominentihus ; protliorace valde cordato (scilicet 

 aniice lato rotundato, postice suhito et profunde contracto, angulis posticis rectis), hnsi 

 in medio late et grosse transversim suh-hituhcrculato (tuberculis carinuld media hre- 

 vissinid tenuissimd divisis) ; elytris ellipticis, singulis strict suturali redd profunda 

 impressis; antennis elongatis. Long. cnrp. lin. vix |. 



A species well distinguished from the other three exponents of 

 this section which I have hitherto examined (namely, the H. caularum, 

 Aube, the niger, Aube, and the hipartitus, WolL), by its larger size and 

 much more cordate prothorax (which is more suddenly and conspi- 

 cuously contracted behind), by its more convex and very elliptical 

 elytra, and by its longer antennae. Judging from the examples before 

 me, the colour appears to be pallid, the siirface very lightly and in- 

 distinctly punctulated, and the sutural stria to be deeply impressed. 



Teignmouth : October, 1873. 



DESQJIIPTION OF A NEW SPECIES OE ISONYCEUS (Fam. MELOLON- 

 TSIBM), FROM G-RANADA. 



BT CHAS. O. WATEEHOUSE. 



IsoirrcHUS maculatus, sp. nov. 

 Niger, dense fulvo-puhescens ; capite, elyiris maculis quatuordecem, 

 antennis pedihusque nigris. Long. Q\ lin.; lat. 3| lin. 



B-esembles I. marmoratus in form. Head black, slightly tinged 

 with aeneous, with a little fulvous pubescence, moderately thickly and 

 strongly punctured ; clypeus sparingly and very strongly punctured, 

 with black pubescence. Thorax above brown, densely and evenly 

 clothed with fulvous pubescence, thickly and finely punctured. Scu- 

 tellum as long as broad, sub-acuminate, fulvous. Elytra with the 

 striae moderately impressed, nearly equally distant, the alternate in- 

 terstices slightly convex, densely clothed with fulvous pubescence, 



