778 REVISIOI^ OF THE AMYCTERIDES, iv., 



think, more closely related to the Stutchburyi-group than to the 

 following one, though the notched tibiae are present in such species 

 as S. tuberculosus and S. German. 



In many of the species, the elytral intei-stices are costiform in 

 character, the costse, however, often resolving into their component 

 tubercles. The Group corresponds, therefore, to Group 4 in Mac- 

 leay's subdivision of the genus. 



The species are distributed over the southern tablelands in New 

 South Wales, extending from the Murray, to at least as far north 

 as Mudgee. 



In addition to the species described by Macleay, three of the 

 early described species appear to belong to this group. Amycterus 

 Kirhyi Guerin is almost certainly founded on S. suhcostatus 

 Macl. I regard Guerin's name, however, as preoccupied by Phali- 

 dura Kirhyi W. S. Macleay, the two genera being then, as indeed 

 they really are, considered to be synonymous, notwithstanding that 

 the two species are now placed in different genera. The descrip- 

 tion of Amycterus dolens Boisd., would apply to a number of 

 species of this group ; and S. suhsequens Macl., has been sent to me 

 from the British Museum as S. dolens Boisd. Until the type can 

 be located, and authoritatively examined, I think it best to treat 

 Boisduval's species as non-existent. S. Hopei Bohem., is quite pos- 

 sibly a grey-clothed species, widely distributed on the western slopes 

 of the tableland, from Koorawatha to Mulwala on the Murray. 

 Specimens have been sent to Stockholm for comparison with 

 Bohemann's type; in the meantime, I have redescribed the species 

 as S. Hopei Bohem.( ?). 



S. vermiculatus Macl., I regard as a synonym of S. suhcostatus 

 Macl.; and S. interruptus Macl., as a synonym of S. suhsequens 

 Macl. 



I have added one new species, S. suhcarinatus, to the Group. 



Table of Species, Group iv. 



1(8). Clothing scanty, except on sides. 



2(5).Prothoracic granules obsolete or subobsolete in middle, often 

 confluent. 



3(4). Elytral interstices strongly raised, generally costiform (except- 

 ing sometimes the second and fourth) S. suhcostatus Macl. 



