172 Arfhur 31. Leu : 



onntiiuied to beyond the middle. Metasterniim gently convex 

 along middle. Femora not very stout ; tibiae strongly inflated 

 towards apex. Length 2 (vix) mm. 



Hah. — N.S. Wales : Miirrunmdi (type in Macleay Museum). 



Readily distinguished from all other species known to me by 

 the shape of the antennae as seen from the side, each there 

 appears rather stouter than is usual towards the base, in the 

 species having wide antennae, in the middle it is strongly con- 

 stricted, with the apex but little wider than the base. From 

 above each appears to have the inner outline straight (except 

 for a slight projection at the basal third), but the outer side 

 dilated to beyond the middle and then straight to apex. The 

 middle, from some directions, appears largely scooped out. The 

 .convex portion of the upper surface of the abdomen is almost 

 circular in outline. 



Articerus constrictiventris, n.sp. (Fig. 40.) 



?• Reddish castaneous. Clothed with short depressed setae, 

 and with sparse suberect ones ; abdomen with longer suberect 

 ones only and fasciculate on each side of base. 



Head rather wide, flat and densely punctate, without median 

 impression. Antennae long and thin, apical fourth strongly, 

 although not suddenly, inflated, base feebly curved, apex circular 

 in outline. Prothorar about once and one-half as wide as long, 

 base distinctly rounded and wider than apex, sides gently 

 rounded ; with a large but rather shallow medio-basal impres- 

 sion ; punctures very distinctly sparser than on head. Elytra 

 with smaller punctures than usual, especially on apical half, 

 towards base becoming subseriate in arrangement ; sutural stria 

 distinct. Abdomen with basal fovea large and deep, with its 

 walls suddenly and strongly constricted in middle so that it 

 appears as if divided into two. Metasternum gently convex 

 along middle. Legs long and thin. Length If — 2 mm. 



Hah. — Victoria: Wangaratta, two females from an ants' nest 

 under a stone (A. M. Lea). 



In many respects close to description of spinifer, but an- 

 tennae not twisted at apex, and apex of body with sparse and 

 rather short setae instead of numerous elongate ones. It is also 



