New Australian Coleoptera. 119 



groove, much as in the preceding species, in front of groove with disc 

 coarsely longitudinally strigose, behind rather sparsely punctate. 

 Elytra transverse, apical margin of each elytron produced in middle, 

 dorsal striae traceable to about apical fourth, its apex lightly deflected 

 outwards, with sparse moderately defined punctures, epipleural furrow 

 arising from a small round fovea at about basal fourth and terminating 

 .a little before apical fourth. Abdomen about width of elytra at their 

 widest part, with two somewhat indistinct medio-basal carinules. 

 Metasternum widely impressed down middle. Intermediate trochanters 

 each with a small tooth. Abdomen with second ventral segment 

 armed at apex with a wide lamelliform protuberance overhanging 

 the third segment, and then abruptly recurved outwards, evenly 

 rounded at apex; apical segment almost wholly occupied by 

 a very large and deep excavation. Legs with] front femora 

 stout, front tibiae with an internal tooth towards apex. 



Length, 3 mm. 

 $ Similar, but tibiae, trochanters and ventral segments unarmed. 

 Undersurface of abdomen convex, but ultimate segment lightly bi- 

 impressed. 



Habitat. — Victoria: Ringwood, (P. E. Wilson and C. Oke), Fern- 

 tree Gully (C. Oke), Lakes' Entrance (F. E. Wilson). 



This species frequents moss growing on the ground in damp 

 situations. 



Type in author's collection. 



Tar. picea. 



Size smaller (2.5 mm.). Dark brownish-black, elytra except for 

 a large discal infuscation on basal half (which sometimes extends 

 down the suture), and appendages, dark castaneous; undersurface 

 piceus. 



A number of specimens both mature and immature are before me, 

 but though in size and general colouration looking very different 

 from the typical form, I am unable to distinguish any marked char- 

 acter by which to separate them. Some specimens are a little less 

 pilose and a little more nitid than in the typical form, but others 

 again agree very well in these rspects. The immature specimens are 

 wholly flavous. 



Habitat. — South Australia: Myponga (A. H. Elston). 



Rybaxis mirabilis, n.sp. 



S" Pale castaneous, elytra and appendages slightly paler; 

 sparsely clothed with short pale pubescence. 



Head about as long as wide, lightly impressed between antennae, 

 with fairly large and evenly distributed punctures, with two prom- 

 inent round inter-ocular foveae; antennae with joint 1 a little wider 

 than 2, and about as long as 2 and 3 combined, 3 and 4 subequal^ 

 narrower than 2, 5 longer than 4, 6 as long as 5, and slightly wider, 

 7 shorter, but wider than 6, 8 much shorter, 11 lightly bent, and 

 about as long as 9 and 10 combined, the last three forming a fairly 



