BY ARTHUR M. LEA. 81 



shorter, abruptly terminated, and nowhere thickened. Under 

 surface impunctate ; mentum transversely and longitudinall}'- 

 impressed; abdomen strongly convex, each of its segments deeply 

 sulcate laterally, the sulci not traceable across middle. Legs 

 much stouter than usual. Length 7, width \\ mm. 



Ilah. — ■Cairns, Q. (Macleay Museum). 



A remarkably distinct species. 



Rhysodes trichosternus, n.sp. 



Piceous-black and shining; legs and outer margins of elytra 

 diluted with red. 



Head deeply bisulcate ; basal lobes large ; median lobe of 

 irregular shape, and terminated considerably before the base, a 

 feeble lobe on each side of its middle. Antennae rather long, 1st 

 joint almost as long as 2nd and 3rd combined, 2nd transverse, 

 3rd longer than wide, 4th as long as wide, 5th-10th transverse, 

 11th once and one-half the length of 10th. Prothorax consider- 

 ably narrowed in front; deeply trisulcate, ridges impunctate, the 

 median slightl}^ narrower than the lateral, and almost conjoined 

 at apex; marginal impressions deep and narrow. Elytra con- 

 siderably wider than prothorax ; seriate-punctate, punctures 

 rather large, interstices rounded and feebly raised, the 8th 

 thickened and conjoined at apex. Mentum strongly punctate; 

 apex of presternum opaque and pubescent, flanks coarsely punc- 

 tate; middle and sides of metasternum punctate; each of the 

 abdominal segments with a transverse series of punctures and 

 lightly impressed, apical segment densely punctate. Length 8J, 

 width 1\ mm. 



^a6.— Victoria (C. French).^ 



A comparatively large species with wide elytra. In appearance 

 it resembles R. ichthyocephalus, but the antennae are considerably 

 stouter, and the 8th. (instead of the 5th) elytral interstice raised 

 posteriorly. 



■* Mr. J. J. Walker has recently shown me a specimen of this species 

 which he obtained in an old rotten log near Hobart. 

 6 



