216 



Differs from the preceding as follows : — The prothorax is less 

 decidedly notclied behind the head, its puncturation being 

 coarser, its excavation occupying only its anterior four-fifths, 

 and having less elevated sides, and its margins being less con- 

 tracted behind (the base is fully seven-eighths of the greatest 

 width) ; the scutellum is closely and roughly punctulate. The 

 disc of each elytron to near the apex is strongly punctulate- 

 striate, the sutural (except the sutural stria) and marginal por- 

 tions being confusedly and strongly punctulate. 



There is a single specimen in the South Australian Museum. 

 The exact locality of its capture is not known. 



PENTODON. 



P. Australis, sp. nov. Piceo-niger ; nitidus ; clypeo antice 

 bidentatus, postice bituberculatus ; prothorace vix evi- 

 denter punctulato ; elytris irregulariter striatis seriatim 

 gemellato-punctulatis. Long. 7 — 8 1. 



Maris tarsis anticis et unguiculo intern o valde dilatatis. 



Var. Corpore toto castaneo-rufo. 



The colour is very variable, some specimens being aAmost 

 black, some having the antennae, palpi, and legs (especially the 

 tarsi) reddish, some being entirely of a chestnut colour. The 

 head is rather finely punctured and transversely wrinkled, 

 except near the base, where it is almost smooth. The thorax 

 is about one-third as wide again as long, is quite simple in 

 both sexes, deeply emarginate in front, rounded and ciliated 

 on the sides, with the front angles acute and the hind angles 

 rounded ; under a very strong lens the surface is seen to be 

 dulled by minute close puncturation on which are some much 

 more sparing and larger (but still very fine) punctures. On 

 the disc of each elytron are about four strise which are short- 

 ened before or behind, or at both ends, and also eight rows of 

 gemellated punctures shortened more or less (in a variable 

 manner — those near the suture are in some examples entire), 

 some of which run in striae ; between the suture and the first 

 row of punctures, and still more between the eighth and the 

 lateral margin the puncturation is confused and very sparing ; 

 close to the apex it is confused and close. The anterior tibiae 

 in both sexes have three long, sharp, external teeth, with an 

 additional one above and below the upper of the three, these 

 additional teeth being usually very small, but in some examples 

 not very much smaller than the others. On the underside 

 there is scarcely any puncturation along the middle line, while 

 at the sides there are rather fine punctures with very large 

 ones sparingly intermixed, these last running in rows on the 

 ventral segments. 



