Broun. — New Genera and Species of Coleoptera. 389 



situated between the middle and the sides, and, owing partly to the punc- 

 tation, are not very definite. Elytra widest before the middle, a good deal 

 attenuated posteriorly, with the lateral margins well developed to within 

 a short distance of the apices; they are, relatively, strongly seriate- 

 punctate ; near the suture, however, they are striate and rather more 

 finely punctured; the apical carinae are not very sharply elevated, and 

 the space between the outer series of punctures and the sculptured mar- 

 ginal channel on each elytron is smooth. 



Underside shining black; abdomen uneven, with broadly depressed 

 sutures between its segments, the terminal bipunctate at each side of the 

 7niddle at the apex. 



The lather elongate contour, longish thorax, and the posteriorly 

 attenuated cordiform hind-body are good discriminating characters. 



length, 6 mm.; breadth, 2Jmm. 



Mount Quoin, Tararua Range. A single female, from Mr. H. W. 

 Simmonds. 



Group Pooonidae. 



3174. Obpterus laevigatus sp. nov. (hipterus Guerin, Man. N.Z. 

 Coleopt., p. 54. 



Suboblong, slightly convex, nitid ; castaneous, femora and elytral 

 margins fulvescent ; the tibiae, tarsi, antennae, and labium more or less 

 rufo-castaneous. 



Head smooth, the frontal impressions well marked and extending 

 from the interantennal suture to the middle of the eyes, which are large 

 and moderately convex. Thorax a seventh broader than long, widest at 

 the middle, gently curvedly narrowed anteriorly, gradually, but scarcely 

 sinuously, contracted behind, with rectangular but not acute posterior 

 angles, base truncate, apex slightly incurved, lateral margins rather 

 thin; basal fossae broad and well marked, each separated from the side 

 by a distinct carina, the central groove hardly attains the apex, its 

 whole surface impunctate, but with a few fine striae near the middle of 

 the base. Scutellum subcordate, smooth. Elytra oblong-oval, a little 

 wider than thorax at the base, not quite thrice its length, with broad 

 lateral margins, which, however, become very narrow near the broadly 

 rounded apices; on each elytron there are 4 slightly impressed, impunc- 

 tate striae; these are obsolete near the base, the sutural alone reaches 

 the apex; the apical plica is distinct, the base is tripunctate but the 

 3rd interstice is only very feebly so, the side is quadripunctate near the 

 shoulder, the posterior punctures are less definite, there are none at all 

 rear the middle. 



Tibiae straight, the front pair nearly glabrous, the others finely setose. 

 Tarsi with yellow setae above; the anterior with the basal joint dilated 

 and oblong, the next cordiform, also dilated, yet hardly as broad, the 

 inner angle of both slightly prolonged; 3rd and 4th cordate, evidently 

 smaller than the 2nd, and consequently hardly at all expanded. 



Tn 0. patnlux (1145) the thorax is widest before the middle, and 

 therefore subcordate. and its sculpture is different; the elytra ai-e shorter 

 and more oval, with fine yet quite perceptibly punctured striae, the 3rd 

 interstices are tripunctate, and the coloration is altogether darker. 



£. Length, 6| mm. ; breadth, 2§ mm. 



Hastwell. near Napier. A single male, found by Mr. H. Suter. This 

 genus was placed by Lacordaire in the Gnernacanthidae, by Bates in the 

 Por/onidae . 



