OCR Text |
Show 160 MR. M. JACOBY ON NEW [Peb. 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, antenna? black; thorax strongly narrowed anteriorly, the sides straight, the posterior portion of the middle of the disc raised into a feeble h u m p 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; scutellum 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 terminates 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 m a y be described as black, with a very regular transverse flavous band near the apex; below fulvous, finely rugose, the legs aud part of the sides (more or less) black; the pygidium flavous, similarly sculptured at the lower portion. Hab. 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 antenna? (the other joints wanting) ; thorax with the basal portion raised iu 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 of the latter and the entire surface finely reticulate or rugose, the extreme anterior margin and the anterior augles flavous, the rest bright reddish; scutellum smooth |