Revision of the Eurybrachidae XVIII. The Australian genus Olonia Stål, 1862: Four new species, new records and biological data (Hemiptera: Fulgoromorpha) Author Constant, Jérôme text European Journal of Taxonomy 2024 2024-06-21 941 1 1 51 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2579/11729 journal article 298987 10.5852/ejt.2024.941.2579 64c70153-d705-4b5d-9ea0-5e8b21a2b3cc 2118-9773 12533699 670AC25F-B24F-46CC-B92F-4A930A757A13 Olonia guillaumei Constant, 2018 Figs 6A , 11 Olonia guillaumei Constant, 2018: 11 (listed), 12 (keyed), 21 (description), figs 3 (distribution map), 9–11 (male, female, male terminalia). Diagnosis The species can be recognized by the following combination of characters: (1) hind wings with conspicuous orange marking ( Constant 2018 : figs 9e, 11e); (2) pro- and mesofemora and tibiae largely brown ( Constant 2018 : figs 9a–d, 11a–d); (3) anal tube of male oblong, with posterior margin rounded ( Constant 2018 : fig. 10b); (4) centroventral part of gonostyli with long laminate process ( Constant 2018 : fig. 10a, c); (5) laterodorsal part of gonostyli with hooked process directed lateroventrally ( Constant 2018 : fig. 10a, c–d); (6) rather large size: 9.5–10 mm. Fig. 11. Olonia guillaumei Constant, 2018 , live specimens and habitat, Mareeba, Granite Gorge, 14 May 2022. A–C . Male. A . Dorsal view, on unidentified plant (not a host plant). B–C . On Erythrophleum chlorostachys (F.Muell.) Baillon, 1870 ( Fabaceae ). B . Dorsal view. C . Laterodorsal view. D–F . Female on E. chlorostachys . D . Anterolateral view. E . Laterodorsal view. F . Lateral view. G . Habitat. Material examined AUSTRALIA – Queensland • 1 ♂ , 2 ♀♀ ; Mareeba , Granite Gorge ; 17°02′23″ S , 145°21′02″ E ; 14 May 2022 ; elev. 550 m ; J. Constant and L. Semeraro leg.; on Erythrophleum chlorostachys ; Leopold III Funds exped.; QM • 2 ♂♂ , 1 ♀ ; same data as for preceding; RBINS • 1 ♂ ; W of Dimbulah , Emu Creek ; 17°19′58.3″ S , 144°56′57.5″ E ; 21 Mar. 1997 ; M. Asche and H. Hoch leg.; Au97-65; MFNB . Distribution and biology This species is currently recorded from the Atherton Tablelands in North Queensland ( Fig. 6A ), in the Einasleigh Upland Savanna bioregion. The specimens were collected in January, March, May, June, August and November; hence, the species may be present all year long. In Mareeba, Granite Gorge, all the specimens were collected from small trunks of Erythrophleum chlorostachys Baill. ( Fabaceae ), which is the first recorded host plant of this species ( Fig. 11 ).