BY THOMAS G. SLOANE. 249 



stout, not channelled below; tantei'ior tibise narrow, apex long, 

 outturned, external teeth small, pi'ominent; posterior tibise light, 

 a little incrassate, not arcuate. 

 Length 11, breadth 4 mm. 



Hab. : Queensland — Gulf of Carpentaria (a single specimen 

 given to me by Mr. C. French, as from the Burketown District). 



Clivixarchus, n.gen. 



Head with frontal region a little raised above occipital region, 

 clypeus with median part angulate. 



Mandibles short; upper surface depressed; outer margin obtusely 

 angled near basal third. 



Mentum deeply emarginate; lobes widely rounded at apex; 

 median tooth long, obtusely pointed, keeled, projecting 

 forward as far as lobes. Submentum large, projecting 

 strongly and vertically from throat; a ridge vertically 

 raised from throat, extending between submentum and 

 base of orbits and defining suborbital channel behind. 



Palpi : Labial with penultimate joint short, stout (about as 

 long as terminal), bisetose, terminal joint stout (stouter 

 than penultimate), truncate (hardly narrowed) at apex; 

 maxillary stout, penultimate joint short, conical, terminal 

 joint compressed, oval, obtuse at apex. 



Antennui short, stout; four basal joints cylindrical, first stout 

 not elongate, second not long (but longer than third) 

 joints 5-11 short, compressed, decidedly separated from 

 one another, apical joint obtuse. 



Prothorax longer than wide, convex, not declivous to base; a 

 raised declivous " collar " (or wide border) along anterior 

 margin. 



Elytra very long, cylindrical, punctate- striate ; fourth stria 

 sharply outturned and joining fifth at base; no sub- 

 marginal carina at shoulder; third interstice 4-punctate. 



