Aitstrcdlan ami Tasiiianhtii Coleoptera. 53 



Head moderately transverse, notched in middle of base ; each side 

 with a strong oblique groove, the two meeting, in front. Eyes moder- 

 ately prominent. Antenmie not extending to base of prothorax ; basal 

 joint fairly stout, third to eighth rather small, ninth and tenth rather 

 small, but forming part of elul). eleventh subnvate, as long as three 

 preceding combined. /'rafhorf/ r moderately transverse, depressed, 

 widest at about apical third, each side near base with a strong curved 

 impression, the two meeting in middle, their junction subfoveate ; 

 each side with a longitudinal impression, invisible from above, dis- 

 tinct towards base, but disappearing before apex. El jftra subquadrate, 

 shoulders slightly raised ; base with a few small foveae ; dorsal striae 

 scarcely traceable beyond base ; punctures minute. Abdomen as wide 

 as elytra, and slightly longer ; parallel-sided to near a]>ex. 1^*'<J^ 

 moderately long. Length, 1 (vix) mm. 



H(d). — New South Wales: Sydney, from a nest of Cai/ijxiiiofus 

 claripen (A. M. Lea). 



Close to suhterraueas but club diti'erent : dorsal striae of elytra 

 shnrter and less iuj pressed. In general appearance it is close to 

 Ell plertops deprexxicdlJia, but is rather smaller, with the ce{)halic 

 and prothoracic impressions different. 



Articerus (rriffitlii , n.sp. 



c?- Keddish castaneous, appendages scarcely i)aler. Elytra with 

 short stiff golden setae, abdomen sparsely clothed but with a con- 

 spicuous fascicle on each side of base. 



Head densely punctate ; without a longitudinal impression. 

 Antennae very wide and flattened, basal third subtriangular, thence 

 scarcely diminishing in width to apex, which is truncate and with an 

 elliptic outline. Fi-othorar strongly transverse, sides widest near 

 apex, thence oljlique to base, with a large but rather shallow medio- 

 basal fovea ; punctures not quite as dense as on head. Eh/tra moder- 

 ately transverse, sides lightly dilated posteriorly ; sutural striae dis- 

 tinct ; punctures clearly defined, coarser at base than elsewhere. 

 Ahduinen transversely excavated at ba.se, where the sides are dis- 

 tinctly constricted, the excavation scarcely produced backwards at 

 each side; under surface deju'essed along middle. M etasteriiuni 

 largely excavated, the wall on each side of excavation with a distinct 

 triangular tooth. Front trorhnnters rather obtusely armed ; hind c-oxae 

 with a large triangular curved tooth; femora moderately stout; 

 tibiae inflated towards apex. Length I5 mm. 



Hah. — South Australia : From a nest of Iridoinijriner sp. (H. H. 

 D. (Trittith). 



Close to A. excavipectus. but metasternum of male still njore largely 

 excavated^ with the walls of the excavation ansnilar or dentate on 



1 The evcavatiori coiuiiniiices cpiite close to the base instead of about the iiiirlrlle. 



