OCR Text |
Show 1900.] FROM SOUTH AND CENTRAL AFRICA. 231 SYAGRUS OPACUS, sp. n. Elongate and parallel, piceous, opaque ; the head, antennae, and tarsi obscure fulvous, head rugose ; thorax very closely and strongly punctured ; elytra deeply punctate-striate, the interstices subcostate at the sides. Length 5 millim. Of entirely opaque colour ; the head fulvous, closely and strongly rugose, the clypeus not separated from the face ; the labrum and palpi pale fulvous ; antennae slender, fulvous, the terminal joint stained with fuscous, the second joint one half shorter than the third one, the apical joints elongate ; thorax about one half broader than long, subquadrate, not much convex, the sides rounded, the surface closely covered with large round punctures which extend to all the margins, the lateral margins slightly crenulate ; scutellum broad, smooth ; elytra without basal depression, strongly punctate-striate, the punctures closely placed, the interstices subconvex, more strongly so at the sides ; below more shining ; all the femora armed with a small acute tooth, the apex of the tibiae and the tarsi more or less fulvous ; prosternum concave at its surface, constricted at the middle, rather abruptly dilated at the base. Hab. Salisbury, Mashonaland, under bark (67. Marshall). Distinct from any of its congeners by the entirely opaque coloration, the fulvous and rugose head, and the almost rugose surface of the thorax. The species seems to approach more S. rugifrons Baly than any other, but that insect is of cupreous coloration and has a differently shaped thorax. Of the present species Mr. Marshall has sent three specimens. SYAGRUS ANTENNATUS, sp. n. Below obscure fulvous, above flavous ; antennae with joints 6 and 7 and the apical one black; thorax closely punctured ; elytra strongly punctate-striate, flavous, the interstices flat; femora with a minute tooth. Length 3| millim. Of subcylindrical shape ; the head sparingly and finely punctured, with a deep but narrow sulcus in front of the eyes; clypeus distinctly separated from the face, its anterior edge deeply concave, the surface with a few fine punctures ; antennae extending to about the middle of the elytra, flavous, the sixth and seventh as well as the apical joint black, terminal joints distinctly thickened ; thorax subcylindrical, the sides nearly straight, the anterior angles thickened, tbe surface strongly and rather closely punctured, the punctures extending to the sides and outer margins, but rather less closely placed at the middle ; elytra very strongly punctate-striate, the punctures nearly as strong at the apex as at the base, closely approached, their interior more or less piceous in colour; legs robust, the femora with a very minute tooth, the tibiae deeply emarginate at the apex. Hab. Dunbrody, Cape Colony (Rev. J. O'Neil). 16* |