216 STUDIES IN AUSTRALIAN ENTOMOLOGY, 



" The prothorax is broader than long, a little narrowed behind, 

 very rounded on the sides which are only a little sinuous from the 

 anterior lateral puncture, the anterior margin is truncate, the 

 angles are very little marked and almost square ; the posterior 

 angles are a little open though distinctly marked ; the lateral 

 border is very fine and extends right across the base. The median 

 line does not reach either margin ; it is well marked and situated 

 in a strong longitudinal depression. The two transverse impres- 

 sions are distinct ; that of the base is interrupted in the middle ; 

 there is no distinguishable trace of any lateral fovete. The elytra 

 are almost perfectly oval, only a little more narrowed behind than 

 in front ; towards the apex they are a little narrower than the 

 prothorax, and towards the middle a little wider ; the sides aie 

 depressed (deprimes), but the surface is flattened and the sutural 

 part is depressed throughout its length ; the striae are shallow, very 

 lightly punctate ; the four or five first are tolerably distinct, but not 

 one I'eaches the apex. In the ^ the elytra are less dilatate in the 

 middle, consequently their sides are a little more parallel. The 

 end of the prosternum only is impressed, the metasternal episterna 

 are short and square. The four last segments of the abdomen 

 have on each side a strong triangular impression more marked in 

 front and prolonged towards the middle of the abdomen. ^ with 

 one puncture on each side of the anus ; ^ with two. The thighs 

 are rather narrow ; the anterior tarsi have their joints triangular, 

 and a little wider in the ^ than the 5. The ^ has the four first 

 joints of the anterior tarsi and the two first of the intermediate 

 spongiose ; however their external part is glabrous. The posterior 

 tarsi are slender and not flattened above. 



Length 11, elytra 1h, width 4| mm. 



Swan River. 



Promecoderus dyschirioides. 



P. dyschirioides, Guer. I.e. 1849, p. 189 ; Putz. Stett. Ent. 

 Zeit. 1868, p. 342; Revis. 1873, p. 337. 



This is another species that I do not know. The following is 

 M. Putzey's notice of it in his Monograph of the Broscides in 1868. 



