638 STUDIES IN AUSTRALIAN ENTOMOLOGY, NO. XII., 



g. Lateral border of prothorax decidedly dila- , 



, ^ J 1 i. ^ • . . y S. aternmits, Cnaud. 



tate and angulate to receive posterior \ 



1 , I S. iiiidiieyensis, 81. 



marginal seta * •' 



gg. Lateral border of prothorax very narrow and not dilated to 



receive posterior marginal seta S. denticolUs, Macl. 



BB. Prothorax with only the anterior marginal seta present. (Prothorax 



very strongly angustate posteriorly, base truncate — not lobate). 



h. Prothorax strongly dentate at widest part; elytra finely and sparsely 



seriate-punctate S. ceneus, Macl. 



Jill. Prothorax ampliate and subangulate (not dentate) at widest part; 



elytra substriate, the strire not punctate S. grijfithi, SI. 



AA. Prothorax with anterior angles subrectangular, marked but obtuse at 



apex. (Anterior margin wide, lightly eniarginate)...S. auratus, Macl. 



aS\ tasmanicus, Bates, I have taken in Victoria at Tarragon on 

 the Gippsland Hallway. 



S. a7igulicollis, Mad., seems, from the description, as if it should 

 be placed with S. tasmanicus, Bates, and S. 7'imosicollis, SI.; it is 

 too small to be either of these species, even if its prothorax be 

 similarly shaped, a question I cannot determine from the imperfect 

 description; the colour is not stated. 



>S'. simplex, Blkb., seems allied to S. tasmanicus, Bates, but 

 thoroughly distinct. 



S. sericeus, Macl. — I have examined the type in the Australian 

 Museum in comparison with S. sigillatus, Germ., and have con- 

 sidered it identical. 



S. intermedins, Blkb., evidently goes with S. sigillatus. 



S. rugatus, Blkb., seems to be allied to S. sigillatus. 



S. iniricatus, Blkb., may come into section "DD," but has the 

 base scarcely lobed. 



S. sexfoveatus, Macl., cannot be said to be described, but is 

 evidently allied to *S'. denticolUs, Macl. 



S. fasciolatus, Macl., seems very near S. auratus^ Macl. The 

 description agrees with my specimens tabulated above as S. 

 aui^atus, which originally came from Mr. Masters and were named 

 by him. 



