Description of Twenty new Species of Australian Coleop-tera, belonging to the families Cicindelidce and Cetoniidce, by William MacLeay, Junr., Esq., M.L.A. [Read 4tli August, 1862.] The following Paper contains descriptions of Twenty hitherto undescribed species of Golenptera, principally selected from a large collection of Insects, which, as I mentioned at the last meeting of this Society, I have lately received from Port Denison. I have not, however, confined myself to Insects from that locality, bnt have included several species from other parts of Australia, which I believe to be undescribed. Family CICINDELID^. Genus Megacephala, Latr. Subgenus Teteacha, Hope. 1. — Tetracha humeralis. Viridi-ajnea mandibulis labro antennis pedibus anoque ferru-gineis, elytris atro-cyaneis granulatis punctorum linea irregulari subsutnrali pone scutellum retroi'sum incurva vittaque ferruginea marginali pone humerum dilatata. Long. 9 lin., lat. Sj lin. Hab. Pox"t Denison. The head, thorax, and under part of the body are of a brassy green, tinged towards the edges with blue ; the elytra, which are roughly granulated, are of a very dark blue, without metallic brilliancy ; an irregular line of small punctures extends along the whole length of each elytron at a short distance from the suture, turning inwards at the base, and forming a second line for a short distance near the scutellum. The margins of the elytra from the shoulders to the apex are of a reddish yellow, a patch of the same colour extending from the marginal vitta, almost into the centre of the disc, a little behind the shoulders. The mandibles, labrum, antennas, legs, and terminal segment of the abdomen, are ferruginous. C
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