252 Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. whole are variable in size and development. The vesicles are considerably larger than in P. cristata, and the ribs are toothed. When dry, this species, like P. cristata, becomes curved in a falcate manner, and the pinnae are frequently laid to one side, so that it assumes a good deal of the form of an ostrich plume, in reference to which I have given it the above specific name. Bay of San Francisco. EXPLANATION OF THE PLATES. PLATE XI. Fig. 1. Sertularia tricuspidata, natural size : a, portion of same, mag-nified. Fig. 2. Sertularia labrata, nat. size : a, portion of same, magnified. Fig. 3. Sertularia corniculata, nat. size : a, portion of same, magnified. PLATE XII. Fig. 1. Plumularia gracilis, nat. size : a & 6, portions of same, magnified. Fig. 2. Plumularia strutJiionides, nat. size : a, portion of stem, magnified ; b, vesicle, magnified ; c, portion of pinna, magnified j d & e, cells, more highly magnified. XXIX. On Additions to the Madeiran Coleoptera. By T. VEENON WOLLASTON, M.A., F.L.S. [Continued from p. 222.] Fam. Colydiad.se. Genus TARPHIUS. (Germar) Erichs., Nat. der Ins. Deutschl. iii. 256 (1848). Tarphius angusticollis, n. sp. T. subrotundato-ovatus, subnitidus, niger ; prothorace angusto, antice et postice attenuate, angulis anticis valde acutis porrectis, granulis crebris magnis obtusissirnis obsito ; elytris rotundatis convexis concoloribus profunde seriatim punctatis, interstitiis alternis leviter elevatis interruptis, nodos distinctos (plus minus aureo-setosos) effonnantibus ; femoribus tibiisque nigrescenti-piceis, tarsis anten-nisque picescenti-ferrugineis, harum capitulo sensim majusculo. Long. corp. lin. 1^-1 f. Habitat locos editiores sylvaticos Maderse, in regione Fanalensi a Dom. Bewicke restate A.D. 1859 detectus. T. roundish-ovate, deep-black, almost free from scales, and a little shining. Head and prothorax beset with very close, large, and exceedingly obtuse granules : the latter nearly unchanneled, altogether narrow, but attennuated before and behind (the sides being suddenly expanded about the middle), and with the ante-rior angles even more acute and prominent than is the case in
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