206 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



near the base of the clypeus are deep and rounded. The impression 

 which separates the vertex from the neck is placed behind the 

 supra-orbital punctures. The eyes are prominent, twice as large 

 as the post-ocular pi'ominences. The prothorax is rather narrow, 

 appearing almost like a transverse square (carre transversal) 

 with all the angles rounded ; in reality it is broader than long, 

 very convex, truncate in front, the angles very much 

 rounded off, the sides slightly arched to the hinder mar- 

 ginal puncture, whence they are more strongly rounded ; 

 the angles of the base are hardly distinct ; the median line 

 does not cross any transverse impressions ; there is hardly 

 any trace of the basal fovese ; the marginal border is very 

 even, it is only interrupted in the middle of the base. The elytra 

 are perfectly oval with the shoulders a little raised ; slightly 

 flattened towards the suture ; completely striato-punctate -to the 

 fifth stria, from which the strife become weaker and less distinct 

 towai'ds the base and apex. The episterna of the metathorax are 

 shorter than broad. Each of the segments of the abdomen has 

 on each side a wide and deep impression ; the two fovese of each 

 segment are united by a transverse stria ; the last segment is 

 rugose and has, according to the sex, one or two punctures on 

 each side of the anus. The anterior tarsi of the ^ are prolonged 

 externally, but the spongiose clothing of the underside does not 

 extend to the dilatate part, the last joint is broad and flat above 

 as in P. gihbosns, but the same joint of the hinder tarsi is more 

 narrow towards the base. 



Length 13 J, elytra 7^^, width 5 mm. 



Then follows a comparison with P. gibhosus which it is un- 

 necessary to add. 



Hab. — King's Island, Bass's Straits. 



Promecoderus pacificds, n. sp. 



(5'. — Upper surface cupreous, shining (sometimes more obscure, 

 or almost black) ; lower surface of a shining metallic bronze, legs 

 pitchy black, tarsi brown, palpi and antennae piceous. Head small, 

 convex, smooth ; frontal impressions short, shallow, distinct on the 

 clypeus, hardly extending behind the clypeal suture, this distinct 



