542 



Hab. — Western Australia: Beverley (E. F. du Boulay). 

 Type (unique), I. 7849. 



In Group 10 would be associated with convexior and 

 laeticulus, from both of which it differs in being larger and 

 very differently coloured ; it is an unusually sparsely clothed 

 species, but I do not think the type has been abraded, as the 

 membranous elytral fringe is in perfect condition. The infus- 

 cation of the elytra is more pronounced at the base than 

 elsewhere. 



Group 11. 



LlPARETRUS TRICHOPYGUS, n. Sp. 



PI. xxxvii., fig. 128. 



Black; parts of front legs obscurely reddish, antennae 

 castaneous, club blackish. Densely clothed all over with long 

 erect hair, mostly white or whitish, on under-surface, hind 

 parts, and head ; mostly black or blackish on pronotum and 

 elytra. 



Head with crowded punctures of moderate size, becoming 

 sparser on front of clypeus; clypeus with rather strongly 

 elevated margins, sides strongly rounded, apex truncate in 

 middle. Antennae nine- jointed. Prothorax with strongly 

 rounded sides, hind angles widely rounded off, front ones 

 produced and acute, median line vague and traceable only at 

 base; with rather large but not crowded punctures. Elytra 

 with sparser and somewhat smaller punctures than on pro- 

 notum ; geminate-striae ill-defined. Hind parts with dense but 

 partially concealed punctures. Front tibiae strongly biden- 

 tate; basal joint of hind tarsi slightly longer than second. 

 Length, 10-10J mm. 



Hah. — Western Australia : Cunderdin (Western Aus- 

 tralian Museum, No. 8228). Type, I. 7835. 



The front tibiae have two strong teeth, but behind the 

 second tooth of one specimen each of them has a very feeble 

 projection. I think the tibiae should be regarded as bidentate 

 only, and that the species should be referred to Group 11, 

 and associated with sua vis, but it is very different in general 

 appearance to that species, and to all others of the group. 

 But regarding the front tibiae as tridentate it would prefer- 

 ably be referred to Group 8, and associated with ebeninus, 

 which is evidently a much smaller species, with very different 

 clothing, etc. ; if not to Group 8, it might be referred to F, 

 of Group 5, but it differs very considerably from vestitus and 

 nigroumbratus in clothing and punctures, black elytra, etc. 

 The upper-surface lias a bluish iridescence, this being very 

 conspicuous on the elytra. The clothing of the hind parts is 

 unusually dense, and consists of long erect hairs and long 



