178 Proceedings of the Royal Society of Victoria. 



AA. — Mesosternum between coxae wide, and 

 flattish or obtusely convex. 



B. — Sterna non-punctulate - - - sternalis, Blackb. 

 BB. — Sterna conspicuously punctulate. 



C. — Hind angles of prothorax outwardly 



prominent . - - - mendax, Blackb. 

 CC. — Hind angles of prothorax not out- 

 wardly prominent - . - nitidicollis, Macl.? 



SapPUS (gen. nov., Aphodiidarum). 



Palpi labiales breves, maxillares niodici (liorum articulo ultimo 

 quani ceteri longiori); mandibuli labrum excedentes ; labrum 

 apertum transversum ; caput sat breve, sat convexum, autice vix 

 emarginatum ; oculi modici, perspicue sat subtiliter granulati ; 

 antennae 9-articulatae ; prothorax transversus fere aequalis con- 

 vexus ; scutellum modicum, minus angustatum ; elytra elongata, 

 parallela, superficie dorsali antice bene definita nee margine 

 elevata instructa, humeris dentatis ; pedes sat elongati ; pedum 

 posticorum femora oblongo-ovalia, tibiis a basi ad apicem sat 

 aequaliter sat fortiter dilatatis in margine externo denticulatis, 

 tarsis sat elongatis (articulo basali sat cylindrico, quam 

 sequentes 3 conjuncti et quam tibiae spina apicalis vix breviori) ; 

 pygidium elytris haud plane tectum ; coxae anticae contiguae, 

 intermediis late distantes ; mesosternum fere horizontale, inter 

 coxas intermedias longitudinaliter tricarinatum. 



It is impossible for me to describe the following very interest- 

 ing species without giving it a new generic name, although I am 

 very chary of proposing new genera in groups whose existing 

 genera are known to be usually of wide distribution ; since only 

 a specialist in such a group can feel any confidence that he may 

 not be re-naming some genus founded on a recently discovered 

 species in some distant land. I am unwilling, however, to postpone 

 the record of this species, and feel fairly sure that it cannot be 

 placed in any genus known to Australasia or the Malayan regions. 

 Its protruded labrum and mandibles associate it with Aegialia, 

 with which genus, however, it agrees in scarcely any other 

 structural character that is distinctive among the Aphodiides. 

 Lacordaire, in his notes on Aegialia, states that there are some 



