BY THOMAS G. SLOANE. 481 



distinct ; median line merely forming a faint linear impression on 

 disc ; two marginal })unctures on each side, the anterior placed in 

 the marginal channel near anterior angles; inflexed lateral margin 

 projecting strongly from the episterna. Elytra subcylindric, not 

 attaining the breadth of the prothorax (12 x 6 '75 mm.), impunc- 

 tate, narrowed at shoulders, widest behind middle, lightly rounded 

 on sides, widely rounded at apex ; base subtruncate, a little 

 emarginate between the shoulders, strongly declivous ; shoulders 

 prominent, with a strong erect short obtusely conical projection ; 

 margin very narrow ; border finely reflexed ; two or three small 

 punctures on i)ase of each elytron near slioulder ; a row of li^ht 

 punctures along lateral margins, more closely placed in front ; 

 suture very strongly impressed; inflexed margin acclivous, narrow, 

 but wider than in N. eloyiyatum, Macl. Presternum very lightly 

 and roundly excavate between the coxae ; the posterior margin 

 triangular ; a strong divergent process on each side of base near 

 peduncle. Ventral segments rugulose. Legs short : femora 

 short, thick ; anterior very lightly channelled below, a light 

 apical sinuosity on their anterior edge ; anterior tibiae short, 

 narrow at base, wide towards apex, bidentate, a very short 

 external tooth a little above the base of upper large one ; inferior 

 ridge with three widely separated projections, the two anterior 

 ones dentiform; apical plate narrow, pointed at apex and })roduced 

 sharply downwards ; intermediate tibiae short, wide towards apex, 

 armed at ai)ex with a long pointed tooth, directed obliquely for- 

 wards ; posterior coxae impunctate ; posterior trochanters very 

 short, their posterior margin rotundate, their apex forming a 

 little point. 



Length 23, breadth 7 mm. 



Hah. — NuUabar Plains, Eucla. I am indebted to C. French, 

 Esq., for a specimen, and another is in his collection. 



Carenidium superbum. 



Carenum superbum, Casteln., Trans. Roy. Soc. Victoria, 1868, 

 viii. p. 135 ; Carenidium kreuslerm, Mad, Trans. Ent. Soc. N.S.W. 

 1869, ii. p. 70; C. lacustre, Macl., I.e. p. 326. 



