OF NEW ZEALAND. 1169 



This species is like X. dentipes, but the sides of the thorax are 

 more . strongly rounded at the middle and more abruptly narrowed 

 behind, so as to appear as if obliquely sinuated near the base ; the 

 superficial sculpture too is different, being finer and less distinct. 

 The elytral punctures are larger, but the suture, near the hind slope, 

 is not so broad or convex. 



The male has the armature of the front femora more conspicuous ; 

 instead of a blunt tooth-like projection, it has rather the appearance 

 of an outstanding spiniform process. 



Female. Front tibiae straight, intermediate nearly so, the pos- 

 terior moderately curvate. 



Length, 4 ; breadth, 1|- lines. 



Mokohinou Island. Mr. Sandager was kind enough to send me 

 a pair. 



Omedes. 



Nov. gen. 



Terminal joint of palpi wide in front, cultriform. Eyes nearly 

 rotundate, emarginate in front, large, with coarse facets, but not at 

 all prominent or convex. The space between the forehead and 

 labrum large, membranous. Prosternal process rather narrow be- 

 tween the coxae, deflected behind these, and then a little produced 

 and flattened, on a lower plane than in front. Intercoxal process of 

 abdomen almost triangular, narrower than in the genus Xylochus. 

 Spurs of the tibiae small. Claws of the tarsi finely pectinate. 



This genus is established for species which cannot be placed in 

 Xylochus. Mr. Pascoe is of opinion that his genus Hybrenia is 

 closely allied to Xylochus, but I have not been able to see his 

 description. White's Tanychiltcs metallicus is not a true Tanychilus, 

 neither is No. 699. 



2076. O. nitidus, n.s. Body nearly glabrous, shining, a little 

 convex, moderately elongate ; infuscate-black, legs and coxae pale- 

 castaneous, femora more infuscate ; tarsi, antennae, and palpi paler 

 than the tibiae, sometimes rufescent. 



Head rounded behind ; finely, not closely, and somewhat irregu- 

 larly punctured ; the forehead broadly concave. Antenna pubescent, 

 stout, filiform, reaching backwards to the hind thighs ; second joint 

 one-third the length of the following one. Thorax rather broader 

 than long, curvedly narrowed near the front, nearly straight behind 

 the middle, finely, yet distinctly, marginated ; anterior angles de- 

 pressed and rounded, the posterior nearly rectangular, but blunt ; 

 base feebly sinuate ; there is a large puncture behind each eye, and 

 two shallow impressions behind the middle ; its punctuation is 

 rather fine, shallow, and distant, but there are some more distinct 

 punctures near the base. Scutellum broad, impunctate, somewhat 

 polished. Elytra a little broader than the thorax at the base, wider 

 still behind the middle, marginate, apices, singly, strongly rounded, 

 so as to expose the finely-punctate apical segment ; their series of 

 punctures moderately small, finer and more distant near the sides, 



