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Show 370 MR. M . J A C O B Y O N T H E [Mar. 7, a similar band is placed below the middle; below and the femora more or less rufous, tibiae and tarsi pale. Hab. Estcourt, Natal (67. Marshall). This well-marked species agrees in all structural characters with the other species of the genus, but differs in the amount of rufous of the thorax and the underside. MONOCIDA, gen. n. Body elongate ; antennas filiform, the third joint shorter than the fourth ; thorax subquadrate, without depression ; elytra much wider at the base than the thorax, their epipleuras indistinct below the middle ; legs slender, all tbe tibias mucronate, the first joint of the posterior tarsi as long as the folloAving tAvo joints together; claws appendiculate, presternum very narrow and convex; the anterior coxal cavities closed. Amongst the genera Avith closed coxal cavities, Monocida will find its place near Monolepta and Pseudocrania; it differs from the first in its general narrowly elongate shape and the subquadrate thorax, which is much narrower at the base than the elytra, also in the much less elongate metatarsus of the posterior legs ; from Pseudocrania the totally different structure of the head and of the antennas separates the genus. MONOCIDA SUTURATA, sp. n. Elongate, black, the head anteriorly, the basal joints of the antennas, and the anterior legs flavous ; thorax minutely punctate, flavous; elytra finely and closely punctured, flavous, the suture and the sides black. Length 4 millim. Head black posteriorly, tbe vertex very finely granulate and punctured, the frontal tubercles very strongly raised, the anterior portion and the palpi flavous; antennas extending nearly to the apex of the elytra, slender and filiform, the second joint short, the third twice as long but shorter than the fourth joint, the lower four or five joints more or less flavous, the apical ones fuscous ; thorax subquadrate, scarcely broader than long, the sides slightly constricted at the base, the anterior angles in shape of a small tubercle, the surface minutely granulate and finely punctured, flavous; scutellum broader than long, black ; elytra broader at the base than the thorax and sculptured similarly, flavous, a sutural rather broad band, narrowed posteriorly, and the sides more narrowly, black or piceous ; underside and the four posterior legs black, the others flavous. Hab. Estcourt, Natal, on acacia trees, December (67. Marshall). PLATYXANTHA FACIALIS, sp. n. Elongate, testaceous, the terminal joints of the antennas black, the face very elongate; thorax subquadrate, foveolate and im- |