276 COLEOPTEKA. 



and some longitudinal oues at the centre of the base, the lateral channels 

 are well developed, the slight frontal curvate impression is subfoveate behind 

 each eye, the median sulcus extends from the basal margin almost to the 

 apex, basal fossae large, with a shallow impression between them ; there 

 is a setigerous puncture at each hind angle and another before the middle. 

 Scutellum striate at base. Elyti-a oblong-oval, less than thrice the length 

 of thorax, their dentiform shoulders slightly broader than its base, rather 

 wider near the hind thighs, distinctly narrowed towards the broad apices ; 

 their fine sutui'al striae are minutely punctate and entire, the others are 

 irregular ; the 3rd, .5th, and 7th interstices are broad and moderately convex 

 but so interrupted that each appears to consist of from 5 to 7 distinctly 

 separated more or less oblong elevations : the marginal channels are seriate- 

 punctate. 



Underside shining black, nearly smooth. Terminal ventral segment 

 obtuselv elevated behind and bipunctate at each side of the middle . at 

 the apex. 



$. Length, 28 mm. ; breadth, 11 mra. 



Greenstone Flat, near Queenstown. A single female found by Mr. M. 0. 

 Pasco on the lat November, 1912. 



The remarkable elytral sculpture distinguishes this from every other 

 species of our Feronidae. 



3(i88. Pterostichus rteldi sp. nov. 



Elongate, slightlv convex, nitid ; black, antennae, palpi, and tarsi piceo- 

 rufous. 



Head rather narrower than thorax, smooth, with well-marked frontal 

 impressions, bipunctate alongside each eye ; labrum feebly emarginate, 

 quadripunctate ; mandibles somewhat rufescent, deeply obliquely striate. 

 Eyes moderately prominent, rotundate, their orbits swollen behind. Thorax 

 of equal length and breadth, apex deeply incurved, with obtuse angles, the 

 base widely but not deeply emarginate, its angles acutely rectangular ; the 

 sides distinctlv marginate, evenly and moderately rounded to behind the 

 middle and distinctly sinuate towards the base ; disc nearly smooth, with 

 a few fine longitudinal striae at the base and apex, median groove well 

 impressed but not reaching the front, basal foveae deep, only moderately 

 broad, situated nearer the sides than the middle. Scutellum striate at base. 

 Elvtra oblong-oval, hardly double the length of thorax, a little broader, 

 with simple gradually narrowed shoulders, sinuously but not abrui)tly 

 contracted towards the moderately broad extremity ; on each there aie 

 7 deep, regular, very finely, almost imperceptibly punctured striae ; inter- 

 stices nearly plane, slightly convex towards the sides, the 3rd, 5th, and 

 7th a little broader than the others. 



Underside glossy black. Flanks of prosternum finely and irregularly 

 punctate. Terminal ventral segment obtusely angulate medially at the 

 extremity, subtruncate near the middle, sinuate towards the sides, with a 

 single apical puncture near each side. 



Femora robust, the posterior angulate, almost dentiform underneath, 

 tibiae sliglitlv curved and dilated towards the extremity. Antennae normal. 



This dif^'ers from P. hjhri<bis, 1469, in having the thorax broader near 

 the front, distinctly sinuate behind, and with acutely rectangular posterior 

 angles; the elytral striae are not at all interrupted. P. pellax, 1147, the 

 only other close ally, has a more quadrate thorax, irregularly punctured 

 elvtral striae, and convex interstices. All have, or had, 4 setae at each side 



