426 REVISIONAL NOTES ON AUSTRALIAN CARABIDiE, iv., 



flat. Male with one, female with two, setigerous punctures on each 

 side of apical ventral segment; those of the female near together, 

 the outer one more distant than usual from lateral sinuosity of seg- 

 ment. Tarsi not striolate on upper surface; four posterior with 

 external side costate, costa not spinulose beneath. 



This is a satisfactory group, containing no species that seem 

 out of place in it ; from a geographical point of view, too, it is com- 

 pact, occupying a single area in Northern New South Wales and 

 Southern Queensland. The species are numerous, and their classi- 

 fication into species and varieties is a work that can be done only 

 by someone with a full knowledge of the extent to which the lead- 

 ing species vary. Such a species as N. nitidicollis Chaud., is evi- 

 dently variable, but only an accurate knowledge of the range of 

 each form could enable anyone to form a true idea of the value of 

 these variations; my information on the range and distribution is 

 not complete in regard to any species of the group. 



Table of Species. 



l.(10)Elytra with eighth interstice depressed and much wider than ninth 



at middle of course. 

 2.(7)Pronotum transversely striolate. 



3.(6)Elytra with second, fourth, and sixth interstices foveolate. 

 4.(5)Elytra with interstices 1-6 unequal on basal third (second, fourth, and 

 sixth much wider than alternate ones and depressed, except just 



near base). 32. JV. Ussellatus SI. 



5.(4)Elytra with interstices 1-6 equal on basal third (convex in $ , de- 

 pressed in ?) 33.iV. opacicollis Chaud. 



6.(3)Elytra without foveolate interstices 34.A 7 . polli SI. 



7.(2)Prouotum nitid, without decided transverse striolse. 



8.(9)Size large (205 mm.) ; prothorax shortly sinuate before the strongly 



marked basal angles 36. N. promintns SI. 



9.(8)Size moderate (13-155 mm.); prothorax not sinuate on sides, basal 



angles obtuse 37. N. illidgei SI. 



10.(l)Elytra with eighth interstice narrow and convex. 

 ll.(22)Pronotum nitid. 



12. (21 )Form ordinary; lateral apical sinuosities of elytra ordinary. 

 13.(20)Elytra at least with some metallic or submetallic tints. 

 14.(17)Head and prothorax with more or less metallic tints. 



15 (16)Elytra with interstices convex and nitid in both sexes 



38.iV. nitesctns SI. 



