BY THOMAS G. SLOANE. 577 



bh. Colour wholly reddish -brown P. macJeayi, SI. 



AA. Protliorax punctate across base. 



C. Form oval, depressed P. riifcoUi^, SI. 



CO. Form narrow, lightly convex P. dongatus, SI. 



Pediomorphus macleayi, n.sp. 



Depressed; head small, eyes prominent; prothorax transverse, 

 subcordate, strongly rounded on sides ; elytra finely punctate- 

 striate. Reddish-brown. 



Head small, smooth, convex, not narrowed behind eyes, feebly 

 biimpressed between antennae. Antennte filiform, elongate ; 

 apical joint elongate, compressed-fusiform. Prothorax lajvigate, 

 widest a little before middle (1-6x2 mm.), emarginate at apex, 

 truncate at base, depressed on disc, declivous to anterior angles; 

 apex and base of about equal width; sides strongly rounded, 

 strongly and roundly narrowed to apex, narrowed to base without 

 sinuosity; anterior angles distant from sides of head, obtuse but 

 marked ; basal angles obtuse (not rounded) ; border narrow, 

 reflexed, extending round anterior angles on each side ; lateral 

 channel veiy narrow; median line linear, well marked; lateral 

 basal impressions well marked, short, punctulate; posterior mar- 

 ginal seta arising from a puncture placed in a slight dilatation of 

 the border just before basal angle. Elytra suboval (4-2 x 2 7 mm.), 

 parallel on middle of sides, Madely rounded at humeral angles, 

 widely depressed on disc, abruptly declivous to sides from sixth 

 interstice; apex widely rounded, lightly sinuate on each side- 

 strife finely and closely punctate ; interstices depressed, ninth 

 convex, punctate, the punctures interrupted in middle. Metaster; 

 num punctate on each side ; episterna of mesosternum and 

 metasternum punctulate. Ventral segments rugulose-punctate. 

 Length 6-7, breadth 2-7 mm. 



Hah. : North- West Australia — King's Sound (Froggatt; speci- 

 mens from Macleay Coll.). 



Differs from P. planiusculus, Chaud., by its larger size, pro- 

 thorax more strongly rounded on sides and more decidedly 



