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Show 232 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA [Mar. 6, Differing from every other species of the genus in the colour of the antennae, in connection with the distinctly punctured thorax and very strongly punctured elytra. IVONGIUS PUNCTICOLLIS, sp. n. Below black, above metallic dark greenish ; legs piceous, the basal joints of the antennae and the tibiae flavous ; head dark fulvous; thorax rather strongly punctured; elytra strongly punctate-striate; femora unarmed. Length 3 millim. Of short, ovate, and very convex shape; the head obscure fulvous, the vertex greenish piceous at the base, the surface impunctate or with a few fine punctures; the clypeus entirely obsolete; the eyes surrounded by a narrow sulcus ; antennae flavous, the terminal four joints black, second joint but slightly shorter than the third, the apical joints very slightly thickened; thorax nearly twice as broad as long, not narrowed anteriorly, the sides straight, the surface closely and rather strongly impressed with round punctures, which leave only a small longitudinal space at the middle smooth; elytra scarcely wider at tbe base than the thorax, narrowed towards the apex, dark greenish, strongly punctate-striate, the interstices with some minute punctures, convex near the lateral margins, the shoulders acutely raised and slightly obliquely costate, lateral margins reflexed ; below7 blackish ; the legs robust, dark fulvous, the femora stained with piceous; prosternum broad, transversely rugose, its anterior margin elevated. Hab. Mozambique. The principal characters of Ivongius-the unarmed femora and elevated anterior margin of the prosternum-are present in the species described here, of which two specimens are contained in my collection ; but the line of separation between the epistome and the head is entirely absent, so that this character used by itself is unreliable as applying to tbe genus, but it is used by the author (v. Harold) as one of the distinguishing features of Ivongius. The dark fulvous head, punctation of the thorax, and colour of the legs will separate this species from any of its allies, which for the most part are inhabitants of Madagascar. EURYDEMUS MARGINATUS, sp. n. Pale fulvous, the breast piceous ; thorax impunctate; elytra strongly punctate-striate, with basal depression, the extreme sutural and lateral margins black. Length 4 millim. Head remotely punctured as well as the clypeus ; the latter separated from the face, subquadrate, its anterior margin straight: eyes rather large, distinctly notched ; antennae slender, fulvous, the second joint nearly as long as the third, the following joints elongate ; thorax one half broader than long, strongly narrowed anteriorly, the sides oblique, scarcely rounded, the angles dentiform, the surface deflexed at the sides near the anterior angles, entirelv |
