OCR Text |
Show 344 MR. M. J AC0BY ON T H E [Mar. 7, less testaceous. In a specimen from Abyssinia contained in my collection the elytra have a sutural and discoidal black longitudinal band, the latter being interrupted anteriorly, leaving the shoulder-spot isolated ; this specimen differs in no other way from the type. The species seems to have a wide distribution in Africa, which no doubt accounts for its many aberrations. LONGITARSUS DIMIDIATICORNIS, Sp. n. Black, shining, the head piceous, the basal and apical joints of the antennas fulvous ; thorax very minutely punctured; elytra more strongly aud closely punctate-striate, knees obscure fulvous. Length 4 millim. Of oblong, subcylindrical shape; the head piceous, impunctate, the frontal elevations feebly raised, the clypeus with a strongly raised central ridge ; eyes very large ; antennas filiform, black, the lower three and the apical two joints fulvous, the third joint one-half longer than the second, thinner, the seventh and the following joints more elongate; thorax nearly twice as broad as long, the sides straight, with comparatively broad flattened margins, the anterior angles obliquely thickened, the surface very minutely but not very closely punctured; elytra slightly wider than tiie thorax, subcylindrical, the apex broadly rounded, the surface distinctly and closely punctate-striate ; below and the legs black, the knees to a small extent fulvous, posterior femora strongly incrassate, their tibias greatly widened near the apex, and sulcate, the first joint of the posterior tarsi much longer than the following joints together : presternum very narrow. Hab. Cameroons (Conrad). Of this species, distinguished by the colour of the antennas, the broad thorax and its flattened margins, I received a single specimen from Dr. Kraatz. APHTHONA DURBANENSIS, sp. n. Subquadrate-ovate, black, the head fulvous; thorax flavous, extremely minutely punctured ; elytra very finely and closely punctured, flavous, the sutural and lateral margins narroAvly piceous ; legs flavous, the posterior femora piceous above. Length 3 millim. Head impunctate, fulvous, the eyes Avith a feAv punctures or short grooves near the inner margins, frontal eieA'ations narrowly oblique, distinct, labrum piceous ; antennas rather long and slender, flavous, the apical three or four joints blackish, second and third joints equal, the following two more elongate, of equal length, the apical joints longer ; thorax subquadrate, one-half broader than long, the sides straight, the anterior angles oblique, posterior angles acute, the surface flavous, shining, with a few microscopical punctures ; scutellum black; elytra wider at the base than the thorax, subcylindrical, very finely and closely punctured, the punctures somewhat regularly arranged, the sutural and lateral margins narrowly piceous, this colour not extending in either case |