Roeseliana bispina ( Bolívar, 1899 )

Massa, Bruno, Tagliavia, Marcello, Buzzetti, Filippo Maria, Fontana, Paolo, Carotti, Giovanni, Bardiani, Marco, Leandri, Fausto, Scherini, Roberto & Verde, Gabriella Lo, 2023, A taxonomic revision of the Palaearctic genus Roeseliana (Orthoptera: Tettigoniidae: Tettigoniinae: Platycleidini): a case of ongoing Mediterranean speciation, Zootaxa 5270 (3), pp. 351-400 : 374-375

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).

Figures

FIGURE 1. Ovipositor of five taxa of Roeseliana in lateral view. In 1c the method to take three measures of the depth of the ovipositor (named “ovipositor depth” in the text) is explained.

FIGURE 3. Stridulatory file under the left tegmen of some taxa of Roeseliana.

FIGURE 5. Male titillators of different taxa/populations of the genus Roeseliana.

FIGURE 7. Dorsal view of the male supragenital plate and cerci of other four taxa of Roeseliana and three different populations of R. azami minor.

FIGURE 8. Ventral view of the female subgenital plate of six taxa of Roeseliana.

FIGURE 11. Habitus of other five taxa of the genus Roeseliana.