160 MB. M. JAOOBY ON NEW [I'eb. 19, 



portion with acute oblique ridges and transverse shorter ones at 

 the middle, black, followed by a narrow transverse flavous band, 

 the apex also black. 



Length 6 millim. 



One of the handsomest and most easily recognizable species of 

 the family, of subquadrate robust shape, the vertex of the head 

 finely rugose and black, the eyes nearly divided in half by the 

 intruding portion of the sides of the head, the lower portion of the 

 face flavous, the anterior margin of the clypeus and the labrum 

 black, antennae black ; thorax strongly na,rrowed anteriorly, the sides 

 straight, the posterior portion of the middle of the disc raised into a 

 feeble hump bounded at the sides by a shallow oblique groove, the 

 space near the lateral margins with another very slight elevation, the 

 entire surface finely and evenly rugose, reddish fulvous or flavous 

 with a broad, subquadrate, black patch at the middle of the anterior 

 portion, the extreme basal margin likewise narrowly black : scu- 

 tellum impunctate ; elytra sculptured like the majority of species 

 and in the following way : — a strongly raised oblique sinuous ridge 

 from: the shoulders to the suture below the middle, where it ter- 

 minates in a short transverse ridge and runs upward again towards 

 the base, marked in its way by two more distinctly raised tubercles, 

 another tubercle is placed at the middle of the base and continues 

 downward in another feeble ridge which joins the oblique one at 

 the middle, at this place a third ridge runs downward and is lost 

 towards the apex, all these ridges include foveolately punctured 

 spaces, but there are no tubercles at the apical portion of the elytra ; 

 the latter may be described as black, with a very regular transverse 

 flavous band near the apex ; below fulvous, finely rugose, the legs 

 and part of the sides (more or less) black ; the pygidium flavous, 

 similarly sculptured at the lower portion. 



Hah. Bolivia. 



Of this handsome insect I received two specimens from Dr. 

 Staudinger. I know of no other species of Chlamys with which 

 to compare it. 



Chlamys amazonica, sp. n. (Plate XIV. fig. 4.) 



Subquadrate, light red; the head, the anterior angles of the 

 thorax, and the tarsi flavous ; thorax rugose-punctate, slightly raised 

 posteriorly, the middle with two points ; elytra without tubercles, 

 with four strongly raised ridges, the interstices strongly punctured. 



Length 5 millim. 



Head finely rugose, flavous, as well as the palpi and the basal 

 joints of the antennae (the other joints wanting) ; thorax with the 

 basal portion raised in a triangular-shaped elevation ending in 

 two points at the middle of the posterior margin, the top of the 

 raised portion with a short sulcus posteriorly and bounded at 

 the sides by another oblique sulcation which does not extend to the 

 middle of the thorax ; the sides ol the latter and the entire surface 

 finely reticulate or rugose, the extreme anterior margin and the 

 anterior angles flavous, the rest bright reddish ; scutellum smooth ; 



