Aust raliiin avd T((><m<i via )) Col ca pi era. 181? 



H <(td smooth ; eyes small and very prominent. Antennae 

 very distinctly passing base of prothorax, with a very distinct 

 four-jointed club. Prothorar sliirhtly longer than wide, basal 

 two-thirds subi)arallel, thence narrowed to apex, with a deep 

 puncture on each side of middle of base, and a smaller one 

 on each side. Elytra somewhat depressed, briefly oblong-ovate, 

 sides strongly rounded from base to apex ; basal impressions 

 distinct ; impunctate. Legs long and thin ; femora clavate ; 

 hind tibiae long and bisinuate internally, the others slightly 

 thickened towards apex. Length l-^s mm. 



Hah. — Tasmania: Devonport, in a nest of FoJyracliis hera- 

 cantha (A. M. Lea). 



The dark head and prothorax, with dense clothing at sides 

 of latter, and the highly polished and glabrous elytra, will 

 readily distinguish from all previously named Australian species. 

 There are. however, several as yet unnamed species that are 

 fairly close to it in appearance. 



I have regarded the club as four-jointed, but it might almost 

 fairly be regarded as five-jointed, as the seventh joint, although 

 decidedly narrower than the eighth, is dilated to its apex, and 

 very distinctly longer than the sixth. The hind tibiae are pro- 

 bably simple in the female. From som© directions the median 

 prothoracic punctures appear to be completely isolated, but from 

 others they are seen to be connected by a shallow impression. 



Srydinaenus ectatoinmae, n.sp. 



Brownish castaneous, metasternum and abdomen almost 

 black, appendages of a dingy pale brown. Sparsely pubescent. 



Head smooth ; eyes distinct but not very prominent. An- 

 tennae comparatively stout, scarcely passing base of prothorax ; 

 with a very distinct, four-jointed club, that is equal in length 

 to the six preceding joints combined. Prothorax slightly longer 

 than wide, apex and apical sides rounded, slightly wider at 

 apical third than elsewhere ; base with four small, deep, com- 

 pletely isolated punctures. Elytra oblong-ovate, sides rather 

 strongly inflated about middle ; basal impressions very feeble ; 

 with very sparse, indistinct punctures. Length 1;^ mm. 



Hah. — Tasmania : Hobart, Bagdad, Huon River, Launceston, 

 in nests of Ertatom ma inetaHicum (A. M. Lea). 



