128 Mr, C. O. Waterhouse on new Longicorn Coleoptera. XV. — Description of a new Genus and Species of Longicorn, Coleoptera from the Philippine Islands. Bj CharleS 0. Waterhouse. LamiidEe. Apomectnin^. * DiAXENES, n. gen. General characters of Apomecyna^ but a little less parallel in outline, the elytra being more narroAved towards the ar)ex. Antennal tubercles a little more prominent and more approxi-mate ; face equilateral, very gently convex. Eyes coarsely granular, not quite so deeply emarginate. Antennaj reaching two thirds of the length of the elytra, moderately stout, finely ciliate below ; the basal joint three times as long as broad, only very slightly narrowed at the base ; third a little longer than the first and second taken together, slightly bent, and distinctly narrower at the base than at the apex ; fourth joint three quarters the length of the third ; the fifth a little more than half the length of the fourth ; the following joints gradually but only slightly diminishing in length and thick-ness. Thorax a little broader than long, subcylindric, a little narrowed in front. Scutellum transverse. Elytra at the base one quarter broader than the thorax, not quite four times as long, moderately narrowed towards the apex, flattened at the suture; at the base, gradually declivous from just behind the middle the apex of each elytron obliquely truncate. Legs short and stout ; the femora considerably inflated. Intermediate tibige with an incision on the outer edge at the apex. Tarsi short ; claws diverging. Prosternal process sloping down posteriorly. Mesosternal process rather broader than the prosternal, sloping down in front. The species on which I propose to found this genus very much resembles some of the smaller species of Hathliodes. It differs from Apomecyna chiefly in the proportions of the an-tennal joints (which also diminish in thickness and are ciliate), the even surface of the thorax, and less parallel form. Diaxenes Taylor i^ n. sp. Pube pallide flavo-grisea dense vestitus ; antennarum dimidio api-cali fusco, articulis griseo annulatis ; thorace ad basin gutta alba notato ; scutello fusco, gutta mediana lateribusque albis ; eh'tris ante medium prope suturam gutta fusca ; abdomine fusco-vittato.
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