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 picea Kirkaldy, 1906 Figs 6B , 24 Olonia picea Kirkaldy, 1906: 445 (described; compared with O. rubicunda , O. transversa and O . apicalis ). Olonia picea – Kershaw & Muir 1922: 208 (note on male terminalia). — Muir 1923: 231 , pl. 5 fig. 12 (male terminalia described and illustrated). — Jacobi 1928 (synonymized under O. transversa (erroneous!). — Metcalf 1956: 66 (catalogued, under O. transversa (erroneous!)). — Constant 2005b: 66 (removed from synonymy with O. transversa ); 2018: 11 (listed, keyed), 63 (description), figs 3 (distribution map), 40–43 ( type , male, female and male terminalia illustrated). Diagnosis The species can be recognized by the following combination of characters: (1) hind wings without orange marking ( Constant 2018 : figs 41e, 43e); (2) pro- and mesofemora and tibiae largely black-brown ( Constant 2018 : figs 41a–d, 43a–d); (3) anal tube of male obovate, narrowing at basal ⅓ ( Constant 2018 : fig. 42b); (4) centroventral part of gonostyli with strong, elongate process curved laterally and pointed apically ( Constant 2018 : fig. 42a, c); (5) laterodorsal part of gonostyli strongly bifid with dorsal and ventral processes, together forming a C-shape ( Constant 2018 : fig. 42a, c–d); (6) rather small size: 6.5–7.5 mm . Material examined AUSTRALIA – Queensland • 1 ♂ , 4 ♀♀ , 1 nymph; Trinity Beach ; 16°46′46″ S , 145°41′49″ E ; 13 May 2022 ; elev. 2 m ; leg. J. Constant and L. Semeraro ; Leopold III Funds exped.; on Canavalia rosea ( Fabaceae ); QM • 2 ♂♂ , 2 ♀♀ , 1 nymph; same data as preceding; RBINS . Distribution and biology The species was known from Cairns and a few localities nearby ( Constant 2018 ). The new record from Trinity Beach fits the known distribution of the species and, being end of May, fills the gap in the known phenology between April and July. Canavalia rosea (Sw.) DC. ( Fabaceae ) is the first host plant recorded for this species.