88 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Colvi>i>lrii(. 



begins ; apices individually rounded but not dehiscent at the suture, the shoulders 

 almost obliquely narrowed ; the sutural vStriae and their fine punctures are well 

 marked, but do not reach the base ; at each side of the scutellar region there is 

 usually a rather deep oblique groove ; the other striae are visible, but become 

 obsolete towards the sides, along which punctures only are seen ; the 3rd interstices 

 are tripunctate ; the posterior carina does not extend further than the top of the 

 declivity. Tibiae, straight, finely setose. 



Underside subopac^ue, dark, without obvious sculpture. 



Female. — One setigerous puncture at each side of the middle, at the apex, of the 

 terminal ventral segment. 



<f J . Length, 2| lines ( = at least 6 mm.) ; breadth, 1| lines. 



Carnley Harbour. 



Both sexes from Mr. Hudson. 



Ohs. — This cannot be either of the preceding species, because, independently 

 of other details, their descrijrtions make no mention of the 3 intestitial punctures, 

 and, as these are much more conspicuous than those of the elytral striae, it would 

 be absurd to suppose that they had pass unnoticed. The name " clirinnides " it- 

 self, if it means anything at all, implies an elongate narrow form, just the reverse of 

 what the actual measurements prove 0. tripunctatus to be. 



Oopterus marrineri, sp. nov. (Plate V, fig. 3.) 



Nitid, nigro-piceous ; the front and sides of the head, the base and sides of the 

 thorax, and the suture and lateral margins of the elytra rufescent ; legs and antennae 

 ferruginous ; tarsi and palpi rufo-testaceous. 



Head, including the eyes, one-fifth narrower than the widest j^art of the thorax, 

 subovate, a little compressed or constricted behind, so that the ocular orbits appear 

 swollen ; the frontal impressions long and broad, the groove near each eye also 

 rather broad, the interval ridged ; it has the common setigerous punctures. Thorax 

 rather short, one- fifth broader than long, widest before the middle, gradually and 

 more narrowed behind than in front, posterior angles acutely rectangular but not 

 projecting, base truncate, apex sometimes feebly incurved but not causing any 

 prominence of the front angles ; lateral margins well developed, with fine but distinct 

 channels ; discoidal sulcus rather fine, and abbreviated in front ; basal fossae large, 

 rather broad, not very deep, not prolonged forwards, and with an indistinct lateral 

 plica near the outer margin of each ; the basal area is without punctures or striae ; 

 the disc exhibits only feebly imjjressed transverse striae, but in one specimen 2 or 3 

 small fovae. Elytra oblong-oval, evidently less than twice the width of the thorax ; 

 their striae distinct and finely punctured, but less so near the sides ; 3rd interstices 

 trijjunctate. 



This differs from 0. tripunctatus by the smaller eyes but more enlarged orbits ; 

 by the more quadrate and perceptibly less-rounded thorax with well-developed 

 lateral channels ; by the more oblong, distinctly narrower, and more obviously 

 striate elytra ; besides differences in sculpture. The dense minute sculpture of the 

 head is more apparent, near the eyes especially. 



<f . Length, 2i lines ; breadth, | line. 



Campbell Island. 



It bears the name of its discoverer, Mr. G. R. Marriuer. 



