a Genus of Lamellicorn Beetles. | 465 
marginibus lateralibus integris, elytris minuté longitudinaliter granulatis; singulo 
sub lente striis tribus longitudinalibus angustissimis impresso.— Long. corp. lin. 5. 
Hab. In Brasilia, apud Pernambuco. Jn Mus. D. Reichii, Parisiis. 
Fig. 15 a. Caput et pronotum a latere visa. 
This species appears to approach near to A. bicolor, Klug. It is entirely co- 
vered with very minute granulations, those of the elytra being elongated and 
almost confluent. It is black, with a pitchy tinge at the sides, and is clothed 
beneath with pale brown hairs. The disc of the head is neither impressed 
nor tuberculated ; the angles in front of the eyes are very acute, and the front 
of the disc is produced into an acute and porrected conical point, the anterior 
angles in front of the antenna being also acute; the mandibles have a strong 
notch at the sides, the margin of each division formed by the notch being 
rounded. The middle of the pronotum is deeply excavated, the excavation 
being somewhat oval; its deepest part is smooth, but the sides are granu- 
lated; the sides of the excavation are edged with a narrow raised polished 
carina on each side, which converge towards each other behind, and are 
rather angulated outwardly near the middle : there is no oblique, polished, thin 
raised line between each of these two polished edges and the hinder angle of 
the pronotum, the lateral margin of which is entire, having a small impression 
on each side near the margin. The elytra are but slightly setose, the shoulders 
and a spot near the apex of each are polished, and each is marked (when seen 
through a lens) with a very slender raised line close to the suture, and two 
others impressed on the disc, which are more distinctly visible at the base. 
The underside of the body and legs is pitchy, thickly clothed with pale yel- 
lowish brown hairs. 
13. Aruyrevus Rercui (Tas. XXII. fig. 16); piceo-castaneus, lateribus samo a 
ginibus lateralibus elytrorum antennis pedibusque fulvis, capitis margine antico in an- 
gulum acutum supra clypeum producto; disco excavatione rotundá pur oculos, p 
noti angulis posticis prominentibus ; tuberculo ovali ante medium carinis duabus = 
quis lateralibus lineisque duabus levibus ante angulos posticos, elytris substriatis — 
Long. corp. lin. 44. 
Hab. In Nova Granatà. In Mus. D. Reichii, Parisiis. 
Fig. 16a. Caput et pronotum a latere visa. 
This species is at once distinguished from all the allied smaller species 
3P2 
