OCR Text |
Show 1900.] FROM SOUTH AND CENTRAL AFRICA. 245 in closely approached rows; legs and antennae pale, the apex of the latter and that of the posterior femora, as well as the breast, black. Length 2 millim. Head impunctate, obscure dark fulvous, the frontal elevations absent; antennae extending somewhat beyond the middle of the elytra, flavous, the terminal joints more or less fuscous, basal joint long and slender, the second slightly longer than the third, not thickened, terminal joints slightly dilated ; thorax one-half broader than long, the sides straight, distinctly angulate before the middle, the surface closely and strongly punctured, slightly rugose, opaque, dark fulvous ; scutellum piceous ; elytra elongate, slightly widened below the middle, the apex rounded, covering the pygidium, the surface strongly punctured in closely approached rows, which are getting much finer towards the apex, the suture very narrowly infuscate, the breast black; legs flavous, the tibiae in the male rather dilated at the apex, the first joint of the anterior tarsi in the same sex greatly widened, the metatarsus of the posterior legs half the length of the tibia; the penis slender and curved, the sides near the apical portion with a distinct margin, the apex moderately pointed, preceded by an elongate cavity. Hab. Salisbury, Mashonaland (67. Marshall). This Longitarsus is so extremely closely allied to our L. luridus that I at first identified it with this species, but a close examination reveals some small but distinct and constant differences ; these consist in the much longer basal joints of the antennae in the present insect as well as the equally more elongate terminal joints; the male organ shows likewise differences in structure, inasmuch as there is no medial constriction as is the case in L. luridus, the sides also have a distinct thickened margin, and the anterior cavity is longer and larger ; in all other respects the species agrees with the last-named species. APHTHONA OVATIPENNIS, sp. n. Short and ovate, winged, piceous below, apical joints of the antennae black ; head and thorax fulvous, impunctate; elytra pale testaceous, the suture blackish, the surface finely punctate-striate, the striae widely placed, indistinct posteriorly. Length If millim. Head impunctate, fulvous, the frontal elevations narrowly transverse, the carina strongly raised; antennae long and slender, black, the lower three joints flavous, the third joint but slightly longer than the second, terminal joints elongate, scarcely thickened ; thorax subquadrate, one-half broader than long, convex, the sides straight, angulate before the middle, the disc entirely impunctate, fulvous; scutellum piceous; elytra wider at the base than the thorax, convex, narrowed towards the apex, the surface very finely punctured in somewhat irregular, rather distantly placed rows, which near the apex become obsolete, the interstices with some still finer punctures, a row of PROC ZOOL. Soc-1900, No. XVII. 17 |