570 COLEOPTERA. 



Scape .short, half thi' Ii-inzth of the funich^ davato at the extremity ; 

 basal joint of funiculu.s as thick as the apex of the scape but slender at its 

 base, second rather longer, its basal half slender, third and fourth very 

 slightlv lonfTer than the following moniliform ones, seventh a little broader ; 

 club oblong-oval, intermediate joint considerably larger than the others, 

 the first distinctly defined. 



Anterior tibiae externally prominent at the middle, narrowed towards 

 the extremity. 



Underside ])iceous, irregularly and coarsely punctate, with a few minute 

 greyish setae. Second ventral segment shorter than the basal, its frontal 

 suture distinct, subangulate in the middle ; in other respects similar to 

 G. pictnlufi. 



This should be located near G. variegatus (3615), which, however, is 

 larger, with the darkest portion of the elytra behind instead of at the base, 

 and with nodiform interstices on top of the declivity, as is also the ca-se in 

 the much darker G. pnsticalis (3291). 



Length (rostrum inclusive), l^ mm. ; breadth, IJ mm. 



Gordon's Knob, near Nelson; loth November, 1914. Discovered bv 

 Mr. T. Hall. 



4116. Geochus certus sp. nov. 



Variegate, subovatc, broadest near hind thighs, slightly convex, sub- 

 nitid ; very sparingly clothed with greyish setiform scales, suberect on 

 el}'tra, depressed on the thorax, where they are concentrated near the 

 sides. 



Rostrum piceous, much shorter than thorax, trisulcate, the intervals 

 rather flat and convergent behind. Thorax piceous at the sides, rufescent 

 on the disc ; with moderately coarse but not close punctures, each ^vith a 

 minute seta ; it is almost a third broader than long, narrowed anteriorly, 

 a little more contracted in front, feebly curved at the base. Elytra hardly 

 double the length of thorax, of about the same width as it is at the base, 

 arcuate-emarginate there, the sides somewhat indistinctly margined, sub- 

 vertical and considerably narrowed behind ; dorsum nearly plane but 

 uneven ; they are piceous at the sides and behind, but of a light-chestnut 

 hue across the top of the posterior declivity and along the middle ; on 

 each el}i:ron the third interstice is slightly elevated from the base to the 

 middle, the space between it and the suture, when examined sideways, 

 is seen to be rather coarsely quadripunctate ; this interstice is again, and 

 like the second, elevated behind the middle, the others are subnodose on 

 top of the declivity ; the exiornal dark basal portion is irregularly punctured 

 and lias a pale median spot, there are only two well-marked striae on each, 

 both behind the middle. 



Tibiae with outstanding grey setae, the front pair angulate externally 

 at the middle. 



This well-marked species can be separated from the others by the 

 peculiar elytral sculpture. It should be placed near G. plagiatus (2389). 



Length (rostrum inclusive), limm. ; breadth, IJmm. 



Howard River, near Glenhope. The imique specimen was taken from 

 leaf-mould bv Mr. T. Hall on the 27th March, 1915. 



4117. Geochus convexus sp. nov. 



Subovatc, moderately broad, wider near the hind thighs than else- 

 where, evenly convex, without elytral nodosities or definite lateral margins ; 



