OF NEW ZEALAND. l6l 



strongly deflexed. Legs rather long ; tibia triangular, ridged near the 

 middle externally, the outer edge denticulate ; the tarsal groove of the 

 anterior tibiae well-limited, rather straight. Prostcrnum moderately 

 convex, narrowed ; its chin-piece large and projecting. Body more or 

 less thickened, sometimes oblong-parallel and plain above, sometimes 

 cylindric. 



291. P. cognation, Sharp / Entom. Mon. Mag., vol. xiii., A 25. 

 Oblongo-ovatum, sub-depressum, nigrum, nitidum, antennis tibiisque 

 obscure runs ; prothorace elytrisque impunctatis, illis striis dorsalibus 3 

 re^funde impressis, quartaque interna apicali abbreviata. 



Long, corp., 3^ mm. 



Head with a large and well-marked line between the antennae. 

 Thorax impunctate, with the lateral and front margins entire. Elytra 

 with three deep entire striae, and an abbreviated one at the extremity 

 on the inner side of these, impunctate. Pygidium and propygidium 

 rather coarsely punctured. Front tibia with four, middle with three, 

 hind with two, sharp teeth. 



This species is extremely closely allied to our European P. frontale 

 and P. depressum, and in form is about intermediate between the two. 

 It may, however, be readily distinguished from them by the denticles of 

 the tibiae, and the want of lateral punctation on the thorax. 



This species is due to Mr. Lawson, who sent it from Auckland. 



NOTE. I found three specimens amongst vegetable rubbish in the 

 Auckland Domain, and believe it confines itself to that locality. 



Hister. 



Linn'e; Lacord. Hist, des Ins. Coleop., Tom. \\., p. 260. 



Mandibles projecting, generally denticulate on the inner side. Head 

 small, retractile, the forehead with an entire furrow in front. Antennae. 

 inserted under the edge of the forehead, their club small, tri-articulate, 

 oval. Antennal cavities deep, sometimes nearly obsolete. Prothorax 

 transversely quadrate, slightly bisinuated at the base, slightly, or rather 

 strongly narrowed in front, with its apex emarginated. Mesothoracic 

 epimera slightly visible above. Propygidium transversal, oblique, 

 rounded, or triangular in front, and truncated at its base or sub-hexa- 

 gonal ; pygidium curvilinearly-triangular, vertical. Anterior tibia wide, 

 triangular, strongly and obtusely toothed on the outer edge, their tarsal 

 furrow ill-defined, straight ; the other tibiae elongate-triangular, furnished 

 with two rows of spines externally. Prostemum narrow, convex, rounded 

 at its base, and slightly penetrating into the mesosternum ; its chin-piece 

 moderate, often narrowed in front Body thick, quadrate, or broadly 

 oval. 



292. H. Ciimampneus, WJiite; Voy. Er. Terr., Ins., p. 8. 

 Smooth, deep rich purplish brown, head in front considerably hollowed 

 out. Elytra near the sides with three slightly curved, deeply impressed 



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