A taxonomic revision of the Palaearctic genus Roeseliana (Orthoptera: Tettigoniidae: Tettigoniinae: Platycleidini): a case of ongoing Mediterranean speciation Author Massa, Bruno Author Tagliavia, Marcello Author Buzzetti, Filippo Maria Author Fontana, Paolo Author Carotti, Giovanni Author Bardiani, Marco Author Leandri, Fausto Author Scherini, Roberto 0000-0003-2127-0715 bruno.massa@unipa.it Author Verde, Gabriella Lo text Zootaxa 2023 2023-04-21 5270 3 351 400 http://dx.doi.org/10.11646/zootaxa.5270.3.1 journal article 10.11646/zootaxa.5270.3.1 4f185615-5fa3-4877-b684-c4ab307856b4 1175-5326 7859886 E7005C89-7286-4E4C-B73D-E6AFEA8829E0 Roeseliana bispina ( Bolívar, 1899 ) Figs. 1d , 3d , 5n , 7f , 8f , 11 Bolívar, 1899 . Ann. Soc. Entom. Belgique, 43: 602 ( Platycleis roeseli variety bispina ); type locality and depository: Turkey , Marach ( MNCN , Madrid) . Material examined . Turkey , Marach ( holotype ♁) ( MNCN ) ; Turkey , Kilia ( 1♀ ) ; Turkey , Smyrne , Brunner (1♁) ; Turkey , Smyrne , Kordelia , Brunner ( 3♀ ) ( NMW ) ; Turkey , Kütahya , Ikizhüyük ( 950 m ) 21.VII.2003 , M. Ünal (1♁, 1♀ ) ( MUPC ) . Remarks . R. bispina was described by Bolívar (1899) as Platycleis roeseli var. bispina , characterized by stout head and differences in the subgenital plate of the female, which has a broad concavity. Zeuner (1941) raised the taxon to species level within Roeseliana . This was followed by Harz (1969) and Massa & Fontana (2011) . Heller (1988) considered it as synonymous with R. roeselii and Ünal (1999 , 2006 , 2018 ) listed it as Metrioptera ( Roeseliana ) bispina , recording some new localities from north Turkey . Morphological characters (see also Table 2 and 4 ) allow to separate it from other eastern (like R. fedtshenkoi , R. pylnovi ) and western taxa (like R. brunneri , R. azami minor and R. azami ). Male titillators are little curved, slender and nearly unarmed, with only few small apical spines ( Fig. 5n ). Distribution . Turkey , recorded from north Macedonia by Karaman (1975) .