Il6 COLEOPTERA 



laterally. Legs rather short ; tibia very finely spinose ; tarsi short, their 

 four basal joints very short, equal to one another, the apical as long as 

 or longer than the others taken together. 



Body oblong or elongate, depressed, smooth or finely pubescent, 

 winged. 



215. O. hebes, n.s. Elongate, moderately broad, depressed; 

 head dull black behind the antennae, rufo-castaneous in front ; thorax 

 and elytra of the latter colour, the former having its discoidal space, 

 the latter their apical portion, blackish, both glossy ; abdomen chestnut- 

 coloured, paler behind, with its fourth and fifth segments blackish ; 

 antennae black, their second and third joints somewhat rufescent; legs 

 and palpi reddish. 



.//ra^ indistinctly elevated longitudinally on the middle, its forehead 

 smooth and shining, the rest of its surface dull but not distinctly sculp- 

 tured. Antenna pubescent, their second joint smaller than third, fourth 

 smaller than fifth, joints five to ten gradually enlarged and about as broad 

 as long, sub-obconical, eleventh longer than tenth, ovate. Prothorax 

 broader than the head but narrower than the elytra, transverse, rounded 

 laterally and almost sinuously narrowed behind the middle, with rec- 

 tangular hind angles ; it is margined and somewhat explanated at the 

 sides; the oblong dorsal space is depressed, especially at the base, smooth 

 on the middle, but beyond, like the rest of the surface, distinctly punc- 

 tured. Scutellum sub-triangular. Elytra margined laterally, broader 

 and much longer than the prothorax, very obtusely rounded behind 

 so as to seem truncate ; their surface moderately and rather closely 

 punctured. Abdomen longer than, but hardly as broad as, the thorax, 

 remotely punctulate and finely pubescent. Tibia not perceptibly spinous 

 externally. 



This, as well as the following species have two almost equi-distant 

 ocelli on the back part of the head; they will afterwards be dissociated, 

 so as to form three or more distinct genera. 



Length, if line ; breadth, quite J. 



Not uncommon near Whangarei Harbour amongst decaying vege- 

 table matter, principally that of the Nikatt. 



216. O. SUlcithorax, #..?. Moderately shining; thorax and base 

 of elytra castaneous, head and elytra blackish, abdomen brownish-black 

 but paler at the extremity, the four basal joints of the antennae reddish, 

 the remainder dull and blackish. 



The head is more or less distinctly depressed longitudinally near each 

 side, with two large punctures near the base immediately in front of the 

 ocelli, its surface, generally, punctate. Antenna with joints two to 

 four obviously narrower than the succeeding ones, which are transverse, 

 the eleventh, however, being longer than tenth, and obtuse. Prothorax 

 transversal, scarcely broader than the head in line with the eyes, 

 obtusely rounded laterally and a little narrowed, but hardly sinuated 

 posteriorly ; there are two broad grooves on each side of the middle 

 not attaining the base or apex, and a shorter and broader one near each 



