•444: NEW SPECIES OF AUSTRALIAN COLEOPTERA, 



much as in B. Macleayi. Elytra almost as long as wide; each 

 with the sutural stria very distinct, and commencing in a small 

 fovea, dorsal stria distinct at base and traceable to apical fourth, 

 at its apex curved slightly outwards; epipleural furrow deep, 

 lightly curved, commencing at basal and terminating at apical 

 fifth; punctures very indistinct. Metasternum rather widely 

 impressed along middle. Abdomen flattened along middle of 

 under-sui-face. Legs rather stout; four front tibise feebly dentate 

 almost at apex. Length H-l|min 



$. Differs in having shorter antennae, metasternum less im- 

 pressed along middle, abdomen convex along middle of under- 

 surface, and legs thinner and unarmed. 



Hob. — Tasmania : Latrobe; five specimens, from flood-debris 

 (A. M. Lea). 



In general appearance close to R. atriclava, but with the front 

 tibiae dentate almost at apex, instead of near middle, the middle 

 pair also dentate, and the hind pair unarmed; the dentition is not 

 very pronounced, and, at first, appears to be due to pubescence. 

 B. Harti, which also has the four front tibite dentate, has the 

 teeth in very different positions; it is also a smaller and paler 

 species. 



The colour is somewhat variable. Some specimens have the 

 prothorax deep black; in others, it is not much darker than the 

 elytra; the metasternum also varies from blackish to a dingy red; 

 the apex of the abdomen is reddish; and, on the under-surface, 

 the red sometimes extends to the base; the dark joints of the 

 antennae vary in number from three (the club) to five. 



RVBAXIS FOVEICOLLIS, n.sp. 



Pale castaneous; tip of abdomen, palpi, and tarsi more or less 

 flavous. With moderately dense, short, whitish pubescence. 



Head with a i-ound and almost closed fcn-ea close to each eye, 

 and with a wide and rather shallow depressicm in front, its front 

 marked by a curved ridge connecting the bases of the antennae. 

 Antennae short, first joint longer but no wider than second, third 

 to eighth small, ninth slightly wider than eighth, and narrower 

 than tenth; eleventh o\ate, considerably wider than tenth, and 



