54 Mr. G. Lewis on VI.— On new Species of Histeridae and Notices of others. By Q. Lewis, F.L.S. It is only within very recent years that anything has been known o£ the Coleopterous fauna of Formosa. The first paper on the Histeridpe is in the ' Ent. Mitteilungen ' in 1913, and enumerates 36 species. Since this a collection has been brought to England by Dr. T. Shiraki, bringing the number, with a few others, up to 76, of which some are of special interest in showing the distribution of several genera and species not hitherto included in the Japanese or Chinese faunas. From Japan 70 species have been recorded, but from China proper scarcely more than 20 are known. The present paper will serve as a report on Dr. Shiraki's collec-tion. The most remarkable species in it is the Sternaulax, of which there is a single example only, and which appears to be the New Zealand species ; I should like to see this con-firmed by the capture of more specimens. The Teretriosoma is new and described here, and there is also a new species of Epiechinus. The last genus requires a very careful study, and when made the sterna should be figured, as in them the chief specific characters reside. I have four or five unrecorded species from the Oriental Region, and I think it will be better to treat with them in a separate paper. Teretriosoma for mosum, sp. n. Oblongum, cylindricum, breve, robustum. nigrum nitidum, undique sat dense punctulatum ; pronoto angulis anticis rufis ; prosterno antice marginato ; mesosterno marginato, aliquanto acute pro-minulo ; tibiis anticis G-dentatis. L. 2£ mill. Oblong, cylindrical, robust, black and shining, surface somewhat densely and finely punctulate ; the thorax, mar-ginal stria complete, anterior angles distinctly reddish, also the legs and antenna;; the prosternum, anterior edge dis-tinctly marginate ; the mesosternum somewhat acute ante-riorly and also distinctly marginate ; the anterior tibia? are 6-dentate on the outer edge, with two small teeth at the tarsal end ; the pygidium is rugose on the posterior portion in the male. This species is very similar to T.somerseti, Mars., but it is structurally different in the form of the mesosternum and also in its margin ation. In somerseti the edges are simply elevated and the projection obtuse. Uab, Kotosho, Formosa.
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