Revision of the Eurybrachidae XIV. The Australian genera Olonia Stål, 1862 and Stalobrachys gen. nov. (Hemiptera: Fulgoromorpha) Author Constant, Jérôme text European Journal of Taxonomy 2018 2018-12-13 486 1 97 journal article 28761 10.5852/ejt.2018.486 0e26b0d8-14bc-46b2-aac6-feed5d62b2d8 2270151 urn:lsid:zoobank.org:pub:510A70C2-01F5-4C6E-855D-EFE140B45664 Platybrachys ornata ( Lallemand, 1928 ) comb. nov. Fig. 56 Olonia ornata Lallemand, 1928: 393 (described). Olonia ornata – Metcalf 1956: 65 (catalogued). Material examined Holotype AUSTRALIA • ♀ ; Northern Territory , Hermansburg ; “Hermansburg, N.T., S. Australia, H.J. Hillier . 1907 – 233 .”, “Type”, “ Olonia ornata Lallemand , Type, dét. V. Lallemand 19”, “10”; BMNH . Remarks The species is known from a single female and the key to the genera proposed by Fennah (1964) leads to the genus Platybrachys Stål, 1859 . It is quite similar to P. leucostigma ( Walker, 1851 ) (illustrations of the latter species available in Hacker 1924 : fig. 14) by showing an apical white border on the posterior wings and numerous elongate cells in the costal area. The species is here transferred to Platybrachys , although it is obvious that a complete revision of the genus will be necessary ( Constant 2008a ).