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Show 1899.] PHYTOPHAGOUS COLEOPTERA OF AFRICA. 351 species. Mr. Marshall states that it w*as found on Acacia horrida, Avhich seems to be frequented by a great number of other Phyto-phaga. CH^ETOCNEMA MARSHALLI, sp. n. Dark asneous; the antennas very long, more or less fulvous as well as the four anterior tibias and tarsi; thorax finely and closely punctured; elytra deeply punctate-striate, the interstices slightly convex, impunctate. Length 3g millim. Of elongate, posteriorly pointed shape, the vertex of the head rather strongly punctured above the eyes, the latter with a rather deep sulcus near their inner margins, which runs obliquely to the clypeus, this part rugosely punctured as well as the space in front of the eyes at the sides of the clypeus ; antennas slightly extending beyond the apex of the elytra, filiform, fulvous, the terminal joints sometimes darker, the second joint half the length of the first, the folloAving ones very elongate ; thorax rather more than twice as broad as long, the sides slightly rounded, the anterior angles some- Avhat prominent and obliquely thickened, the posterior margin accompanied by a finely impressed line, the surface transversely convex, finely and closely punctured; scutellum twice as broad as long, impunctate ; elytra pointed posteriorly, with deep rows of transversely shaped punctures, the interstices raised and slightly punctured here aud there; underside dark asneous, tbe abdomen finely punctured at the base of each segment, sparingly pubescent; posterior femora strongly incrassate, impunctate ; tibias fulvous at the base, the four posterior ones armed with a stout tooth ; tarsi fulvous; prosternum narrow, sulcate longitudinally; last abdominal segment with a short transverse ridge at the apex (c??). Hab. Malvern, Natal (67. Marshall). The long antennas, Avhich extend beyond the elytra, will at once distinguish this species; in this respect it agrees with C. longi-cornis Jac, likewise from Natal, but that species is much smaller aud has still longer antennas, the thorax is finely rugose, and the legs are nearly black. Some specimens of C. marshalli are of a more opaque dull bluish colour, but I cannot find sufficient differences to justify a separation ; in the female the antennas are shorter, but still as long as the body. CH^ETOCNEMA FREREENSIS, sp. n. Below piceous, above dark asneous, basal joints of the antennas and the tibias and tarsi more or less flavous; thorax very closely and finely punctured ; elytra strongly punctate-striate, the interstices longitudinally costate near the apex, the latter pointed. Length 2 millim. Head impunctate, with the exception of a single deep puncture above the eyes, the sides with narrow* oblique grooves which meet in front; clypeus broad, impunctate; the antennas not extending to |