BY A. M. F.EA. 727 



Readily distinguished from all other species, except H. 

 ventralis, by the abdominal depressions; the antennae are also of 

 unusual length; H. ventralis has the abdominal depressions com- 

 mencing nearer the base of the first segment, and not continued 

 beyond the third, and its antennae are shorter and more con- 

 spicuously (although not strongly) serrated. 



Dyscolocerus porosus, n.sp. 



(J. Black; undersurface, antennae, and legs obscurely reddish. 

 With very short pubescence. 



Head with crowded punctures, with a very feeble depression 

 on clypeus. Antennae rather stout, eight basal joints densely 

 punctate, second joint slightly longer than fourth, third slightly 

 longer than two following combined, fourth to eighth equal and 

 strongly transverse, ninth about as long as three following joints 

 combined, and conspicuously wider, slightly longer and wider 

 than tenth and much shorter and distinctly wider than eleventh, 

 three apical joints as long as the seven preceding combined. 

 Prothorax with sides rather strongly rounded in front, hind 

 angles acute, with the outer side of each somewhat oblique, 

 median line rather shallow but well-defined; with crowded punc- 

 tures of moderate size. Elytra parallel-sided to beyond the 

 middle; punctures at base as on prothorax, becoming somewhat 

 smaller, but almost as crowded posteriorly; striation well-defined 

 throughout, becoming deep posteriorly. Length {$<^), 7-1 1mm. 



9. Diifers in being slightly more robust, antennae shorter, the 

 three terminal joints distinctly shorter than the seven preceding 

 combined, the ninth scarcely shorter than the eleventh, and the 

 fourth-eighth not transverse. 



Hab. N.S. W.: Forest Reefs.— W. A.: Swan River (A. M. Lea). 



The antennae and sterna are somewhat darker than the abdo- 

 men and legs, but no parts are conspicuously reddish; the front 

 of the prothorax of several specimens is very obscurely diluted 

 with red. The pubescence of the upper surface is black and 

 very short, but on the head, and base and apex of prothorax, it 

 becomes longer and greyish, on the undersurface it is uniformly 

 pale. On one specimen, the head appears to have a feeble median 



