336 NEW SPECIES OP AMYCTERID^, 



third are less so, the latter sometimes not at all. The group is 

 upon the whole a natural one, though perhaps some of the species 

 such as S. asper, sordidus, and acuminatus, might almost be 

 placed in the third section with S. ohllteratus. 



The second section, or those with the fourth interstice not 

 tuberculated, or only close to the shoulder, is also a natural 

 group as far as the South Australian species are concerned, the 

 two Victorian species being of a different character. S. sublinea- 

 tus may be taken as the type of the group. All the interstices 

 are well tuberculated excepting the fourth, which is almost flat 

 except at the shoulder, while the fifth interstice seems to take 

 its place. 



The third section contains a natural group in the first five 

 species, the remainder are of a mixed character. 



The last section, or those with costate interstices are few in 

 number, and are probably exclusively insects of New South 

 Wales. 



Wherever in the subjoined list the habitat " New Holland " 

 is given, the meaning is that it is doubtful whether the insect 

 comes from north, south, east, or west. Where, on the other 

 hand, the term " New South Wales " is used, it is generally 

 meant to express that the insect in question has a wide range in 

 that territory. I have not as a rule in the case of species from 

 South Australia, West Australia, Victoria, or Queensland, given 

 the particular habitat, but the remarks accompanying the descrip- 

 tions will supply that defect, as far as our present knowledge 

 can do so. 



