BY THE REV. T. BLACKBURN. 869 



of costfe ; as tliey are not symmetrical on the two elytra of my 

 specimen the degree in which they are interrupted is no doubt 

 very variable ; the elytra have rather strongly rounded sides and 

 are widest in the middle ; the intermediate expansion is consi- 

 derably wider than in S. Icevicollis, and is but little narrowed near 

 the apex. The underside resembles that of S. IcBvicollis. The legs 

 and antennce are a little reddish. The apical spur of the anterior 

 tibife is short and blunt. 



A single specimen occurred to me at Port Lincoln. 



S. LATUS, sp.nov. 



Sat nitidus ; subhemisphaericus ; piceo-brunneus ; capite pro- 

 thoraceque confertim subtiliter granulatis ; hoc quam longiori 

 multo plus duplo latiori, sat late marginato, margine antico 

 concavo ; elytris minute granulatis, tricostatis (costis plus minus 

 interruptis), interstitiis internis obscure seriatim tuberculatis ; 

 tibiis anticis calcare gracili acuminato instructis. 



[Long. 6 lines, lat. 4|- lines (vix). 



The head and prothorax are closely and minutely granulated, 

 many of the granules on the latter, especially about the middle, 

 being much elongated so as to give an appearance of longitudinal 

 wrinkling. The prothorax is quite twice and a half as wide as it 

 is long down the middle, and its base is twice and a half as wide 

 as its front margin ; the intermediate expansion has no transverse 

 folds, its anterior part is distinctly concave, and its granulation is 

 quite continuous with that of the disc. The elytra are not at all 

 narrowed at the base (which gives the insect a very distinctive 

 subhemisphseric appearance) ; they are not at all longer than 

 together wide ; the lateral half of their anterior margin is very 

 obliquely cut away so as to meet the lateral margin in a very 

 obtuse angle ; the intermediate expansion is very wide in front 

 (considerably more so than in S. Icevicollis), and is narrowed 

 uniformly to the apex, where it is not wider than the same at the 

 apex of the elytra of *.S'. Icevicollis, its surface being marked with 

 transverse folds, and also with tubercles similar to those of the 



