252 COLEOPTERA 



444- D. planus, n.s. Oblong, rather broad, slightly convex, rufo- 

 piceous. The head is short and broad, its forehead depressed, with a 

 curved transverse impression ; the surface is strongly and closely punc- 

 tured ; the eyes are encroached upon near the middle by the prolonga- 

 tion of the sides of the head. The thorax is transversely quadrate, 

 finely margined, the apex bisinuated, with obtusely produced anterior 

 angles ; the base is truncate with rectangular but not prominent angles ; 

 the sides are a little rounded anteriorly, and slightly narrowed behind ; 

 the whole surface, except a narrow apical line, is closely and rather 

 coarsely punctured, and is clothed with pale yellow elongate scales, 

 which, however, are chiefly distributed along the sides and base. 

 Scutellum small, almost semi-circular. The elytra are obconical, about 

 as wide as the thorax, and are rounded posteriorly ; the shoulders are 

 prominent and prolonged under the prothorax, near which the side 

 margins are distinctly raised ; the surface is closely punctured, the 

 larger punctures being disposed beyond the scutellum, the finer ones 

 near the suture, and they are clothed with yellowish scales, the dorsal 

 space, however, is nearly nude. The mandibles are broad, short, inwardly 

 bidentate. The club of the antenncE is almost tri-articulate, the seventh 

 joint being almost inappreciably produced. The under-side is coarsely 

 punctured, the abdomen not so much so, and bears many fulvous hairs 

 and scales. The epipleurce are broad near the base. The anterior tibia 

 are slightly grooved and carinated, each carina almost crenate, and are 

 externally armed with five curved teeth, those nearest the extremity the 

 largest ; the other tibiae are more strongly grooved and carinated, and 

 bear a strong tooth near the middle. 



Length, 6J lines. 



I found four specimens at Whangarei Heads ; the species is closely 

 allied to D. punctulatus, but may be identified by the squamose clothing. 



Ceratognatlms. 



Westivood; Lacord. Hist, des Ins. Coleop., Tom. iii.,/. 41. 



Mentum strongly transversal, narrowed in front. Ligula horny, small, 

 entire. Internal lobe of the jaws obsolete, /te^/ rather long, slender, the 

 last joint the largest of all. Mandibles a little longer than the head, hori- 

 zontal, arched, compressed, trifid at the extremity, with an obtuse dent 

 in the middle above. Labrum horny, quadrate, ciliated in front. Head 

 a little narrower than the prothorax, transversal, with two tubercles on 

 the forehead. Eyes almost rounded, rather prominent. Antenna mode- 

 rate, slender, their first joint compressed, arched ; second sub-globular, 

 wider than the following five; the last three very elongated, linear. Pro- 

 thorax transverse, straight on the sides, feebly bisinuated at its base, 

 with the anterior angles rather prominent. Scutellum cordiform. Elytra 

 rather elongate, parallel, rounded at the end, a little convex. Legs rather 

 long ; the anterior tibiae finely denticulated or notched, with four stout 

 middle teeth, and two much larger terminal ones : the four posterior 

 denticulated throughout ; tarsi shorter than the tibiae. Mesosternal 

 process perpendicular, elongate-triangular. Body rather elongate, sub- 

 depressed and parallel. 



