528 H. S. GORHAM 



(jualuor sequenlibus aequante. Ids perbi'evibus, tra)isveì'sìs ; octavo 

 orbicidari tnagno compresso; palpi inaxillarcs articulo itltimo latis- 

 simo, labiales subulati, parvi. Oculi forlitcr granulali. Protliorax 

 transversus, convexus, antice truncatus, liaud profunde arcuatus, 

 lateribus leviler rolundatis, intra margines linea tenui impressa, 

 basi rotundala. Prosternum subquadratum, coxas liaud superans, 

 apice truncato, antice ad luterà carinato-elevalum. Elytra oblonga 

 aequalia, ìiumeris haud callosis, sublaevia, abdomen vix tegentia; 

 epipleura angusta, ante apicem desinentia ; lateribus vix margi- 

 natis. Abdomen segmentis sex compositum, segmento sextò trian- 

 giilari, ad apicem rotundato, basali inter coxas lato. 



Pedes haud longi, validi, femoribus compi'essis, tarsi quadriar- 

 ticulati, articulis duobus basalibus valde lobatis, tertio parvulo, cum 

 quarto elongato connato. 



Habitat in Sumatra. 



This is a very curious genus at first sight resembh'ng a large 

 NitiduHd, but on examination the feet will be found to have the 

 structure usual in the Endomychidae , viz , four joints to tlie 

 tarsi, of which the two basal joints are prolonged beneath in 

 a lamella of two lobes, the third joint is small and obliquely 

 connate with the long and slender curved fourth joint. The 

 lamellae of the second joint are much longer than those of the 

 first joint, and both of these two soles are very hairy beneath; 

 the small third joint lies quite between the lobes of the second. 

 The antennae are very remarkable. The general appearance of 

 this insect is that of a very large Litiwphilus, and I do not 

 doubt that its true affinities are with that abnormal genus, but 

 the antennae instead of being (as in Lithophiius) ten-jointed 

 with a club formed by the gradually expansion of the three or 

 four last joints, are here formed of eight joints only ; the basal 

 joint is inversely pear-shaped, and swollen inwardly, the outer 

 side being suddenly compressed so as to fit into a groove in the 

 head immediately in front of, and beneath the eye ; the second 

 joint is short, articulated to the outer compressed half of the basal 

 joint, and with the third joint is finely pubescent on the inner 

 side. The third joint is elongate and as long as the four succeeding 



