OCR Text |
Show 262 MR. M. JACOBY ON T H E [Feb. 2, concave, the sides with a raised margin ; pygidium fulvous with a black patch at the middle. Hah. Assinie, W . Coast of Africa (Ch. Alluaud). Likewise allied in coloration to C. vittiger, Suffr., C. jucundus, Dohrn, but differing in the colour of the thorax, scutellum:, & c The amount of black and yellow is very variable, the bands of the thorax and elytra differing much in their width; in the variety there are only four yellow spots present on the elytra, indicating the bands, and it is probable that the other extreme in which the yellow predominates may be found : the small subquadrate yellow spot in front of the scutellum is a good mark of recognition in this species. CRYPTOCEPHALUS PORICOLLIS, n. sp. Dark brown; antennas and legs flavous; thorax deeply punctured and longitudinally strigose, the margins and two spots flavous; elytra deeply punctate-striate, the interstices costate, flavous, an obscure transverse band before, another below the middle, and the apex dark brown. Length 1 line. Head with a few punctures at the vertex and round the eyes, the former brown, the latter closely approached at the top, the intermediate space and the clypeus flavous ; antennas nearly extending to the middle of the elytra, flavous, the basal joint much thickened, the second short, the third and fourth equal, slender, the terminal joints more elongate, slightly thickened ; thorax twice as broad as long, the lateral margin straight, narrowed towards the apex, the surface very closely and deeply punctured, the punctures rather more widely placed near the base, the interstices everywhere longitudinally raised and obliquely directed towards the base, dark brown, the anterior and lateral margins, the former very narrowly, and two round spots near the base, flavous, extreme basal margin black ; scutellum triangular, its apex raised ; elytra subcylindrical, the punctured strias deeply placed, all the interstices strongly costate, flavous, this colour interrupted by two obscure transverse brown bands before and below the middle, the second band is generally widened near the suture, the apices are likewise more less brown ; the underside is sparingly punctured, dark brown ; the prosternum is broad and widened towards the base, finely punctured. Hab. Madagascar, Diego-Suarez (Ch. Alluaud). A pretty little species, much distinguished by the sculpture of the thorax, and evidently closely allied to several other Madagascar species described by the late Duvivier, having the elytra similarly strongly costate; in none of these, however, is the thorax coarsely punctured and strigose. CRYPTOCEPHALUS ARMATUS, n. sp. Black; the clypeus, basal joints of the antennas, and the legs flavous ; thorax finely and closely punctured, flavous with two large black spots ; elytra strongly punctate-striate, the interstices |