60 Mr. J. Thomson and Dr. H. K. Nicholson on the Agapanthida scutellaris. A. oblonga, depressa, rufo-castanea, antennis pedibusque dilutiori-bus, supra confertim punctata, griseo variegata ; scutello nigro, subscutiformi, in medio excavato ; elytris apice paulo dehiscenti-bus, sutura canaliculata. Long. 4 lin. Hah. AVaikato. Judging from Mr. White's figure of A. pulchella (' Voyage of the Erebus and Terror,' Entom. tab. 4, fig. 10), this species differs, it might be thought almost genericallj, in its shorter and much thicker femora. The derm in my unique example (apparently a female) seems to be covered with a membranous sort of integument, peeling off" in patches ; but, from the regularity on both sides, the variegation does not seem to be due solely to that cause. The slight intervals between the punctures on the elytra have a granulated appearance. Aga-jKinthida differs from Phh/ctcenodes in its finely faceted eyes, an exceptional character in its own and allied groups. Triplax Brounii. T. obovata, fusco-castanea, nitida, antennis pedibusque ferru-gineis, illis articulo ultimo apice obliquo, palpis maxillaribus articulo ultimo valde transverso ; capite prothoraceque subtiliter, elytris fere obsolete punctatis ; tibiis modice triangularibus ; prosterno postice paulo bilobo. Long. 1| lin. Hah. Auckland. Rather narrower than T. cenea, and the elytra more cuneate. The nearly allied Australian genus Thallis, Er., has filiform palpi. I have named this interesting species after Captain Broun, whose numerous discoveries are adding so much to our knowledge of the insect-fauna of New Zealand. VIII. — Contributions to the Study of the chief Generic Types of the Falceozoic Corals. By James Thomson, F.G-.S., and H. Alleyne Nicholson, M.D., D.Sc, F.R.S.E., Professor of Natural History in the University of St. Andrews. [Contiuued from vol. xvi. p. 429,] [Plates VL & VII.] Genus Cyathophtllum. Cyathophi/Uum, Goldfuss (in parte), Petref. Gerpi. vol. i. p. 54, 1826. Gen. char. Corallum simple or compound, with a well-developed epitheca. Tabula^ not complete, but well developed and occupying a central area, which is surrounded by a more
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