154 



dense piloso ; sternis fortiter rugulose sat crebre (parte 

 mediaiui sparsim baud rugulose excepta) punctulatis ; pro- 

 sterno inter coxas sat angusto retrorsuni gradatim angustato ; 

 segnientis ventralibus 1° 5° que pnesertim in medio sat 

 fortiter (fere ut sterna in medio), ceteris antice multo magis 

 crebre subtiliter postice nullomodo, punctulatis ; segmento 

 ventrali apioali quam penultimum paullo longiori, postice 

 truncato-vix-emarginato, juxta apicem quam antice baud 

 magis declivi ; unguiculis simplicibus. Long., 51 1. ; lat., 2 1, 

 The possession in combination of the four characters mentioned 

 above as distinguishing S. Victoriensis from most of its congeners 

 will also distinguish this present insect from all previously des- 

 cribed at all closely resembling it, except S. Victoriensis, which 

 is very near it, but from which it differs in being smaller and in 

 the absence of the yellow spot close to the apex of the elytra (it 

 is no doubt uncertain whether either of tliese characters is con- 

 stant), as well as in the following structural characters : — On the 

 undersurface the middle piece of the prosternum is narrower even 

 at its front {i.e., at the point immediately before the front of the 

 00X86 where its lateral striae commence), and thence is very con- 

 siderably narrowed hindward, so that the lateral striae conspic- 

 uously ajDproximate hindward. This form of prosternum is un- 

 usual in this genus, the sides of the middle piece being usually 

 parallel or nearly so ; indeed I do not know any very common 

 and widely distributed species in which it is similarly formed ; in 

 iS'. vittata, Saund., however, it is very similar but not quite so 

 decidedly narrowed hindward. The intermediate v(!ntral seg- 

 ments in S. ereniita are much more finely and closely punctured 

 than in S. Victoriensis, except at their apical margin where there 

 is a wide impunctate edging. In the example before me the 

 sutural apex of the elytra is not distinctly proniinent, whereas it 

 is spiniform in Victoriensis ; and the general shape offers a further 

 distinction, *S'. ereniita being less elongate and cylindric than its 

 ally, and having elytra considerably wider at tlieir post-humeral 

 dilatation than the prothorax, their width at this point being 

 about the same as at the dilatation behind the middle, whereas in 

 Victoriensis the elytra at their post-humeral dilatation are con- 

 siderably narrower than at their hinder dilatation and scarcely 

 wider than the prothorax. 



Western Australia, near Eucla ; sent to me by Mr. Graham. 

 S. jKdliclijyennis, s^.nox. Minus angustata ; subdepiessa; viridis 

 vel nigro-a^nea vel igneo-cuprea, elytris abdomineque totis 

 pallide flavis, hoc basi submetallico-micanti ; capite sat 

 elongato crebre fortiter punctulato, longitudinaliter late pro- 

 funde concavo ; prothorace quam longiori (et postice quam 

 antice) tribus partibus latiori, creberrime sat fortiter sub- 



