REVISION OF THE AUSTRALIAN PHORACANTHINI (FAM. CERAMBYCIDAE), WITH NOTES, AND DESCRIPTIONS OF NEW SPECIES OP THIS GROUP AND OF ALLIED GENERA. By H. J. Carter, B.A., F.E.S. (Six Text-figures.) [Read 29th May, 1929.] The group Phoracanthini needs revision. Both genera and species are much confused in Australian collections, and the catalogues — even the latest (of Junk, Berlin) — contain many inaccuracies. Thanks to the courteous help given me, I have been able to examine many types, as virell as long series of most of the recorded species. I v?ish to acknowledge my obligations to the following: Dr. G. A. K. Marshall (Imperial Bureau of Entomology), Messrs. K. G. Blair (British Museum), J. Kershaw (National Museum, Melbourne), A. M. Lea (South Aus-tralian Museum), A. J. Nicholson, J. Shewan (Macleay Museum), A. Musgrave (Australian Museum), H. Hacker (Queensland Museum) and J. E. Dixon, of Melbourne, for the loan of examples. I have to acknowledge my indebtedness to Mr. Cedric Deane, A.M.I.E.Aust., for the six drawings of the Phoracanthini, also to apologize for the absence of an acknowledgment for his four figures of Buprestidae in my former paper (These Proceedings, Part 2, April, 1929), and also to Mr. E. H. Zeck for his figure of RJiyssonotus costatus in the same paper. The insects of this group are in many cases common and widely distributed over the continent as "borers" in various species of Eucalyptus. The adult imagines occur frequently under the loose bark, so characteristic of these trees, and indeed are often known as "firewood" beetles, from their prevalence in this; but they also frequent the flowers of these trees, as also of Leptospermum and Angophora. Some of the species have been introduced into other countries, no doubt with their associated species of Eucalyptus. Thus Phoracantha semipunctata F., has now a wide distribution through South Africa (Zululand, Transvaal and Rodriguez specimens in British Museum), while Coptocercus trimaculatus Hope appears to have been redescribed by Fauvel as a New Caledonian species (vide infra). The chief characters of the group are: Head short, antennae with at least the third segment spinose, eyes coarsely granulate, pronotum more or less nodulose on disc, generally spinose or tuberculate at sides; anterior coxal cavities open, the intermediate closed behind. The line dividing the subfamilies Phoracanthini and Callidiopini is not easy to define. A spine on the third antennal segment is present in Acyrusa, in the insect described by Blackburn as Bethelium spinicorne (recently taken by the author in
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