242 COLEOPTERA 



Group NOSODENDRID^E. 



Head deflexed, not received into the prothorax when at rest. Mentum 

 covering the cavity of the mouth. Labrum indistinct. Antenna eleven- 

 jointed, inserted under the sides of the head. 



Nosodendron. 



Latreille ; Lacord. Hist, des Ins. Coleop., Tom. ii.,/. 478. 



Mentum very large, plane, covering the mouth, elongate- triangular, 

 rounded at the end. Ligula small, membraneous, transversal, rounded 

 in front. External lobe of the jaws coriaceous, slender, almost cylin- 

 drical ; the internal hooked at its extremity. Palpi very short, their last 

 joint cylindrical, obtuse, notably longer than the preceding one. Mandi- 

 bles short, arched, and pointed at the end, having on the inner side a 

 narrow membraneous border, and at the base a strong molar tooth. 

 Head curvilinearly triangular. Funiculus of the antenna slender, joints 

 one and two about equal, third very large, cylindrical, fourth and fifth 

 obconical, sixth to eighth moniliform, the three last forming an abrupt 

 oval club, compressed and subperfoliated. Prothorax short. Scutellum 

 moderate, triangular. Elytra oval, very convex. Femora robust, but 

 narrowed towards the extremity ; tibia dilated, with small spines on the 

 external edge ; the four first joints of the tarsi very short, bare under- 

 neath ; the anterior tarsi received, when in repose, in a tibial groove. 



Prosteraal process moderately large, received into a narrow cavity of 

 the mesosternum. 



429. N. OVatum, n.s. Body oval, moderately convex, obscure 

 piceous, sparsely clothed with short, erect, yellowish setae, legs blackish, 

 tarsi and antennae shining, the basal joint of the latter pitchy, the rest 

 red, the antennal club bears excessively fine yellowish pubescence. The 

 head is immersed up to the eyes, large, as wide behind as the front of 

 the thorax, dull, and apparently without sculpture. Prothorax short, a 

 little emarginate at apex, widely rounded and as wide as the elytra at 

 the base, with obtuse angles ; it is considerably narrowed anteriorly, but 

 not at all curved laterally, and its surface is obscure and not very dis- 

 tinctly punctate. Scutellum triangular, punctulated. Elytra obovate, 

 slightly wider in front of the middle than elsewhere, a good deal nar- 

 rowed behind, and rather finely and irregularly punctured. The antenna 

 are inserted at the sides in front, some distance from the eyes, are rather 

 slender, with a broad massive club, which is three-jointed; the basal 

 joint is stout, its exposed portion longer than the second, which is as 

 long as broad; third cylindric, elongate, nearly as long as the three 

 following joints ; fourth and fifth equal, sub-obconical, longer than 

 broad ; sixth and seventh equal, each shorter than the fifth, sub-monili- 

 form ; eighth rather shorter than seventh, obconical ; ninth transversal, 

 large, produced inwardly ; tenth also transverse, broader than ninth, 

 its point of articulation external to the middle, so that it is prolonged 



