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Show 730 MR. M. JACOBY ON THE [NoV. 3, Oyama. This small species bears a great resemblance to several European forms, notably A. flaviceps and A. lutescens, from which several finely expressed, but constant differences seem to separate it. Ihe head and thorax is always darker than in the named allied species, the punctuation of the thorax is scarcely visible, its sides straighter, the punctuation of the elytra is more distinct and absent near the apex ; the reverse is the case in A. flaviceps, which is also of a much paler colour. Typical specimens of A. flaviceps and A. lutescens named by Allard are before me, but I cannot identify the present insect with either of them. APHTHONA SEMIVIRIDIS, sp. nov. Below black, above dark metallic green ; antenna?, the anterior legs and posterior tibia? pale fulvous; thorax scarcely visibly, elytra more strongly punctured. Length 1 line. Head impunctate ; the frontal tubercles quite obsolete. Antenna? nearly as long as the body, entirely fulvous or flavous, the second and third joints equal. Thorax about one half broader than long, subquadrate, the sides very slightly rounded near the apex, surface extremely finely punctured when seen under a strong lens. Elytra convex, nearly parallel in the male, more widened behind in the female, the shoulders distinct but not prominent; surface closely and much more distinctly punctured than the thorax; posterior femora piceous, the others and the legs fulvous or flavous. Distinguished from other European species of similar colour of the elytra by the fulvous antenna? and fine punctuation of the thorax, from A. atratula by the much greater length of the former, and by the same character from A. pygmcea, Baly. The present insect seems also closely allied to A. lacertosa, Rosenh., but differs again in the entirely fulvous antennae and the almost impunctate thorax. APHTHONA PRYERI, Baly. The five specimens obtained at Nikko and Kurigahara I must refer to the above species, although they differ in the entirely fulvous colour of the elytra, which in some specimens, however, have the suture narrowly black (in the type the elytra are entirely of that colour) ; there are no structural differences whatever to be found in the variety, and I have no doubt about their identity with Mr. Baly's species. APHTHONA PYGMCEA, Baly. Mr. Baly described this species from a single specimen, which I have now before me. The description gives the colour of the insect as black, but I find the upper side of a decided greenish tint. The elytra are more distinctly punctured than the thorax, and the punctuation is arranged in very close semiregular lines. The specimens obtained this time by Mr. Lewis at Nikko, Kobe, and |