A II. -tf nil /an avd Tasniii » ian Coleoptera. 129 



Hah. — Tasuumia : Huon River (A. M. Lea). 



The evenly rounded base of prothorax and bi-coloured elytra 

 readily distinguish from the species associated with Ectatoinnid 

 vietaUicuin. In many respects close to the description of 

 tasmaiiicus, but the colours dingy, abdomen with less of the 

 segments dark, elytra not subtriangularly marked about the 

 suture, and not " considerably longer than the prothorax,"' 

 punctures of the latter not moderately strong, etc. 



The head, upper surface of fourth abdominal segment, hind 

 angles of elytra to a large extent, and the suture, are blackish 

 brown, or at least much darker than the other parts ; on the 

 elytra the dark parts are not sharply limited, but extend almost 

 to the shoulders and suture. The second to fourth abdominal 

 segments on the under surface are moderately infuscated ; the 

 hind angles of the prothorax are slightly diluted in colour ; 

 the legs are uniformly of an almost clear flavous ; the antennae 

 are about the same at the base, but the apical joints are feebly 

 infuscated. From some directions the prothorax appears to 

 have a large shallow depression on each side at the base; but this 

 appearance is due solely to colour. The abdomen is curiously 

 distorted at the apex in the two specimens before me, but as this 

 may be due to violent protrusion of the genital organs, it is 

 perhaps best not formally described as of specific importance. 



On turning over the stone covering these beetles the ground 

 was seen to be swarming with the small black Colobopsis yasseri 

 and a " jumper," Myrmecia. Almost as soon as it was turned 

 a series of battles was waged between the two species of ants, 

 but amongst them the beetles moved with unconcern. I would 

 have liked to have examined the nests at length, but the jumpers 

 were getting rather too familiar. 



Poljlhthn^ pallidominor, n.si"). 



Of a, rather dingy Havous ; basal half of head and third and 

 fourth abdominal segments stained with brown. With mode- 

 rately dense, short, pale pubescence. 



Ilejtd distinctly transverse, sides moderately rounded. An- 

 tennae short, not extending to base of prothorax, most of the 

 joints transverse, eleventh briefly ovate, slightly longer than 



