1874.] 127 



ON A NEW QENUS OF LONGICORN BEETLES FROM AUSTRALIA. 

 BY CIIAS. O. WATERHOUSE. 



CEEAMB YGID^ (FkoracantJndes) . 

 Demeliijs, gen. nov. 

 Palpi short, stout, with the apical joint truncate. Head short, 

 very slightly convex between the antennae, longitudinally canaliculate. 

 Antennae nearly reaching to the apex of the elytra, rather stout, 

 pubescent ; the basal joint sub-cylindrical ; the second shorter than 

 broad ; the third and fourth joints scarcely as long as the first, with a 

 strong spine at the apex on the inner side ; the fifth, sixth, and seventh 

 as long as the first, more slender than the preceding, distinctly spined 

 at the apex ; the eighth to tenth becoming shorter and more slender, 

 with scarcely any trace of apical spine ; the eleventh joint flattened. 

 The eyes well sepai-ated above, the lower lobe projecting to the front 

 of the antennal orbit. Thorax transverse, narrowest behind, with two 

 tubercular processes on each side, and two on the disc. ScutcUum 

 triangular, equilateral. Elytra convex, parallel, truncate at the apex, 

 each furnished with two distinct spines. Legs long ; anterior coxae 

 nearly globular ; the femora sub-linear, unarmed ; posterior tarsi with 

 the basal joint as long as the two following together. Prostcrnal 

 process narrow, arched. Mesosternal process moderately broad, 

 arched. Body, above and below, in parts thickly clothed with pu- 

 bescence. Allied to Orion. 



Demelitjs semirtjgosus, sp. n. 



Nigro-piceus ; capita thoraceque supra dense albo-pnhescentibus, hoc quadrino- 

 doso posiice utrinque fusco-maculato. Scutello medio alio. Elytris thorace via) 

 latiorihus sed qiiadrupio longioribus, sat convexis, ajncem versus rotundato-angustaf is, 

 ad apicem Iruncatis, quadri-spinosis, suttcrd lineisqne sex fusco-imhescentibus, pone 

 medium fasciis duabus irregularibus albo-piubescentibus ; hasi fortiter dense punctatis, 

 apice sublcEvibus. Antennis pedibusque dense griseo-fusco-pubescentibus ; femoribus 

 in medio fere nudis, albo-annulatis. Corpore subttis fusco-pubescenti, griseo-albo- 

 maculato. Long. 14^ lin., lat. 5J lin. 



I need only add to the above description that the three basal 

 joints of the antenna) are much less densely clothed with pubescence 

 than the following. The thorax is furnished on each side with two 

 somewhat acute processes, the posterior one being the more prominent; 

 behind this the thorax becomes narrower, being at the base not broader 

 than the head ; the disc has four nodules, of which two are situated 

 near the front, and are somewhat acute ; the posterior pair are wider 

 apart, elongate and oblique. The basal half of tlie elytra is very 

 strongly punctured ; about the shoulders the punctures are honey- 

 combed. There is a white spot below the shoulders on the margin. 



Uah. : Queensland. Coll. Brit. Mus. 



British Muscniiu : ^eptcmbvr \Uh, ib71. 



