46-4 ON CARABID^ FROM WEST AUSTRALIA, 



From N". niger, Blkb., N. gracilis, Blkb., and presumably from 

 N. parviis, Blkb., the species it resembles in colour, it differs by 

 the form of the posterior angles of the prothorax which, though 

 obtuse, are decidedly marked, instead of being rounded off. It is 

 the largest species of the genus yet described, and is more elongate 

 than the others; compared with N. niger and N. gracilis the 

 prothorax is less transverse and more narrowed to the base, and 

 the elytra more decidedly striate. Obsolete traces of a striole 

 are noticeable under a lens at the base of the second interstice. 



Genus Stenolophus. 



53. S. DINOO, Casteln. ; I.e. Sp. 731. Hah. — Mount Barker, 

 Donnybrook, Darling Ranges, Gerald ton and Mullewa (Lea); 

 Upper Ord River (Helms). 



S. dingo (of which .S'. j)olitus, MacL, is — as noted by Mr. G. 

 Masters, Cat. SujDp. p. 37 — a synonym) seems to range over the 

 whole of Australia. I believe it will be found that S. dingo, 

 Casteln., is synonymous with Harpalus vestigialis, Erichs., with 

 the description of which it seems to agree so closely that it is 

 only the fact of my not having seen it from Tasmania that prevents 

 my placing it under that species. 



Genus Lecanomerus. 



54. L. recticollis. Mad.; I.e. Supp. Sp. 7480. Hah. — Upper 

 Ord River (Helms). 



Sir William Macleay placed this species in Har'planer — a genus 

 to which it certainly does not belong. It is, I think, a Lecano- 

 merus allied to Dia'phormerns victoriensis, Blkb., a sj)ecies which 

 — from examination of a specimen sent to me by Mr. Blackburn 

 — I would also refer to Lecaaomerus. 



55. L. occidentalis, n.sp, 



Alate, elliptical, lightly convex, minutely shagreened under a 

 lens; head rather elongate, front obliquely biimpressed, mandibles 

 prominent, decussating; prothorax quadrate-cordate, wider across 

 base than apex; elytra striate, interstices depressed, third uni- 



