690 NEW SPECIKS OF AUSTRALIAN COLEOPTERA, X., 



basal segments of abdomen are conspicuously impressed along 

 the middle, while the apical one has a conspicuous semidouble 

 fovea. In the female, the basal segments are flat in middle, and 

 the apical one is evenly convex. The species occurs in abundance 

 in dry flowering-stems of species of Xanthorrhcea. 



CossoNUS I-NiTiDUS, n.sp. 



Piceous-brown, some parts almost black, appendages paler. 



Head with dense, clearly defined punctures; a small interocular 

 fovea, vaguely connected with a longitudinal impression on 

 rostrum. Rostrum wide, between antennae and base about as 

 long as wide, in front of same suddenly dilated, and distinctly 

 wider than long; with dense punctures, becoming smaller and 

 denser in front. Prothorax moderately long, base rather lightly 

 bisinuate, and about one-third wider than apex; with dense, 

 round, and rather large punctures, absent from a distinct median 

 line, but crowded into a depression on each side of middle of 

 base. Elytra not much but distinctly wider than prothorax, 

 parallel-sided to apical third: with rows of large, rounded punc- 

 tures, in moderate striae; interstices mostly wider than striae, but 

 towards sides somewhat narrower, with very minute punctures. 

 Length (excluding rostrum), 4 mm. 



Hah. —Tasmania : Ulverstone ( A. M. Lea). 



Allied to C. coptorhinus, but differs from the type of that 

 species in being much smaller, narrower, more convex, and pro- 

 thorax Avith the depression on each side of the median line (which 

 appears as a long, thin, shining I) vanishing before the apex, and 

 deeper posteriorly. The type is probably immature, as the two 

 basal segments of its abdomen are somewhat castaneous; but the 

 species is a quite distinct one, apart from colour. 



CoSSONUS MACILENTUS, n.sp. 



Black, shining; appendages dull red. 



Head with small and rather sparse, but clearly defined punc- 

 tures between eyes, smaller and sparser elsewhere; interocular 

 fovea isolated and rather feeble. Rostrum not twice as long as 

 •T^reatest width, sides strongly incurved behind antennae, apical 



