161 



At first glance fairly close to corticalis, but elytra paler 

 and sides of prothorax denticulate; from dentaticollis, which 

 has very similar elytra, it is distinguished by the more 

 metallic head and prothorax, the latter with a conspicuous 

 median impression bounded on each side near base by a 

 subtubercular elevation ; these, although not much elevated 

 above the general surface, are usually shining and impunctate 

 or almost so, so that they are rather distinct. The general 

 appearance is that of Lissodema hybridum , but the prothorax 

 is at once distinctive. The hairs on the upper-surface are 

 quite distinct from the sides. On some specimens the rows 

 of elytral punctures appear to be in feeble striae towards the 

 suture. The specimen from Lucindale has smaller cephalic 

 punctures than the others; two specimens from Mount Wel- 

 lington are probably immature, they have the head and 

 prothorax reddish-castaneous, with a vague metallic gloss, 

 and the other parts (even the club is but lightly infuscated) 

 paler than on typical specimens. 



Neosalpingus trifoveicollis, n. sp. 



Head and prothorax brassy-black, elytra and under- 

 surface blackish with a vague metallic gloss, antennae (club 

 excepted) and tibiae and tarsi of a dingy testaceous. 



Head with crowded and moderately small punctures, 

 with a shallow depression on each side in front. Eyes small, 

 prominent, and rather distant from base. Antennae rather 

 short, with an abrupt three- jointed club. Prothorax with 

 greatest width (slightly in advance of the middle) about 

 equal to median length, base much narrower than apex, sides 

 distinctly increasing in width from base to middle, then each 

 with two unisetose denticulations, with three small foveae, 

 the median one rather larger and deeper than the others; 

 punctures slightly larger but otherwise much as on head. 

 Elytra distinctly wider than prothorax, sides gently dilated 

 to beyond the middle, and then widely rounded to apex ; 

 with rows of punctures in light striae, the punctures fairly 

 large about base, becoming much smaller posteriorly. Length, 

 lf-2 mm. 



Hab. — Victoria: Dividing Range (Blackburn's collec- 

 tion); Tasmania: Stonor, Swansea (A. M. Lea). Type, 

 I. 6151. 



Differs from dentaticollis and the preceding species by 

 the absence of denticulations from the basal half of the pro- 

 thorax; it is smaller than corticalis, with somewhat smaller 

 punctures, and the three prothoracic impressions usually 

 disconnected. The upper-surface at first appears to be 



G 



