OF NEW ZEALAND. 215 



378. R. pensus, n.s. This species greatly resembles the preceding 

 in general outline^ and is of the same size and colours, but the front 

 thighs are only sub-dentate below, and the structure of the posterior tibiae 



is normal. The head is dilated and abruptly rounded behind and 



elongated anteriorly ; it is quite smooth above, with an abbreviated 

 groove at the middle of the base very much like an elongate deep punc- 

 tiform impression, the sides of the forehead are carinated and grooved, 

 with two punctures between the antennae and one in front. The pro- 

 thorax is subovate, slightly convex transversely, finely margined, the 

 elevated portions quite smooth and impunctate; there is a dorsal groove 

 which extends from base to apex, and a deep elongate basal fovea near 

 each side. The elytra are transversely convex, the basal sinuations are 

 deep, so that the tubercular humeral angles are porrected ; their sides 

 are indistinctly margined and a little rounded ; each bears five discoidal 

 punctate grooves, the lateral ones are less distinct ; the fifth and mar- 

 ginal interstices are united at the end, and are bent and elevated towards 

 the apex, those nearest the suture being depressed. 



Length, 3 lines ; breadth, f. 



I found this species in the vicinity of Whangarei Harbour, and I 

 have seen another specimen which had been found near the Wairoa 

 (South of Auckland) by Mr. T. F. Cheeseman. 



379. R. eminens, n.s. Head dilated behind, elongated ante- 

 riorly j the sides behind have very much the appearance of reniform 

 lobes with a row of small punctures near each eye, there being a deep 

 oblique depression separating the lobes from the smooth dorsal space, 

 which is prolonged to the labrum ; the sides of the forehead are grooved 

 and ridged, the frontal fovea at each side is separated from the pre- 

 viously described posterior depression by a rounded elevation, situated 

 midway between the antenna and the eye. Prothorax oblong, sub- 

 ovate, sparingly ciliated and finely margined ; with three equidistant 

 furrows, widest behind, extending from base to apex ; the elevated 

 portions are smooth, but there is a row of punctures along the lateral 

 margins. The elytra have a somewhat depressed aspect, with prominent 

 tubercular shoulders and rounded sides ; there are six broad grooves on 

 each, the two marginal ones less distinct than those on the disc, all of 

 which, as well as the marginal channel, bear large rounded punctures ; 

 the interstices are rather narrow and convex, the posterior sculpture is 

 ill-defined, but there is a depression near the apex which is rendered 

 more obvious by the lateral interstices being convex and curved towards 

 the suture. The femora are sub-dentate, and the external apex of the 

 hind tibia is simple. 



The body is of a shining black, the legs and antennae pitchy-red. 



Length, 2^-2^ lines; breadth, f. 



I found this species in the woods near Whangarei Harbour. 



380. R. prbitOSUS, n.s. This species is dissimilar to those pre- 

 viously described, but is most nearly allied to J?. eminens, having, how- 

 ever, a comparatively shorter and broader prothorax, quite oblong, not 



