710 EEVISIOXAL NOTES ON AUSTRALIAN CARABIDJi, I., 



Tribe v.— Clivinini. 



Table of Australian Genera. 



Peduncle without lateral concavities beneath Clivinaechus. 



Peduncle with a concavity on each side. 

 Prothorax not globose. 

 Intermediate tibiae very wide, outer edge crenulate, strongly bidentate 

 towards apex; posterior tibipe stout, outer edge strongly and unevenly 



crenulate Platysphyrus. 



Intermediate tibiae with a sharp spine externally above (rarely at) apex; 



posterior tibiae slender, external side even Clivina. 



Prothorax globose Dyschieius. 



P L a T Y S P H Y R U S, n. 



Head short, convex; front strongly biimpressed; eyes hemi- 

 spherical; two supraorbital setigerous punctures on each side. 

 Ayitennm short, reaching to about middle of prothorax, rather 

 slender; two basal joints cylindrical, long, equal, glabrous, first 

 stout, second slender, about length of third with half fourth: 

 joints 3-11 porose, hardly pubescent, short, third and fourth sub- 

 cylindrical, 5-11 slightly compressed. Mentnm large, longitu- 

 dinally raised in middle, apex of raised median part forming a 

 short wide emarginate prominence at bottom of sinus, this 

 shallow; lobes short, rounded, sides not concealing base of max- 

 illae. Labium short, widely rounded at apex. Maxilke with 

 inner lobe short, strongly hooked at apex; inner side with two 

 strong prominent teeth. Palpi : maxillary stout; penultimate 

 joint long, incrassate; apical joint oval, hardly more than half 

 length of penultimate : labial thick; penultimate joint not short, 

 bisetigerous in front; apical joint elongate-oval, hardly as long 

 as penultimate. Clypeus with " wings " lightly advanced on 

 each side of labrum, narrow, obtuse at apex; median part trun- 

 cate between " wings." Mandibles short, not toothed on inner 

 side; outer side roundly arcuate; upper surface striolate. Pro- 

 thorax convex, widest at posterior angles; border reaching base; 

 two marginal setigerous punctures on each side as in Clivina. 

 Peduncle with lateral concavities of lower side deep, impunctate; 

 scutellum wide, triangular. Elytra oval, strongly convex, striate 



