Roeseliana, Massa & Tagliavia & Buzzetti & Fontana & Carotti & Bardiani & Leandri & Scherini & Verde, 2023

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 : 366

Roeseliana n. sp. Lemonnier-Darcemont & Darcemont, in press.

Figs. 22d , 23d

Lemonnier-Darcemont & Darcemont, in press. Zoosystema; type locality and depository: Mazarakia , Epirus, Greece ( MNHN, Paris).

Remarks. The description of this species has been proposed when we finished our revision and we were not able to examine specimens; however, thanks to the courtesy of Michèle Lemonnier-Darcemont it was possible to examine some photographs and to provide biometrics.

Measurements. Male. Body length: 19.5; pronotum: 6.5; tegmina: 9.5; hind femur: 17.5. Female. Body length: 24.5; pronotum: 6.5; tegmina: 7.5; hind femur: 21; ovipositor: 8.5.

Male differs from Roeseliana oporina by the shape of cerci and of titillators, from R. bispina by the width of the base of the apical tooth of the cerci, from R. ambitiosa and R. azami by the shape of titillators and the arrangement of their spines, from R. brunneri by the shape of the last tergite. By their last tergite largely indented with narrow and pointed lobes at their extremity, they are however close to R. azami , to R. oporina and to R. ambitiosa . The internal tooth of the male cerci is short and placed at ¾ of the cerci, it is barely wider at its base than at the apex as R. ambitiosa , R. brunneri , R. oporina and R. azami . The shape of titillators is similar to that R. bispina , but with a different number and arrangement of spines. The shape of the female subgenital plate is intermediate between that of R. oporina and R. azami but with a much shallower incision and a less pronounced central keel (Lemonnier-Darcemont & Darcemont in press).

Figures

FIGURE 22. Roeseliana females. a) R. ambitiosa, Macedonia (photo: M. Lemonnier-Darcemont); b) R. ambitiosa, Greece (photo: F. Rutschmann); c) R. brunneri, Friuli, Italy (photo: F. Tami); d) Roeseliana n. sp. Lemonnier-Darcemont & Darcemont, in press, Greece (photo: M. Lemonnier-Darcemont); e) R. azami minor, Marche, Italy (photo: G. Carotti); f) R. azami minor, Lombardy, Italy (photo: R. Scherini); g) R. azami minor, Lombardy, Italy (photo: F. Leandri); h) R. roeselii, Lombardy, Italy (photo: R. Scherini).

FIGURE 23. Roeseliana males. a) R. ambitiosa, Macedonia (photo: M. Lemonnier-Darcemont); b) R. ambitiosa, Greece (photo: F. Rutschmann); c) R. brunneri, Friuli, Italy (photo: F. Tami); d) Roeseliana n. sp. Lemonnier-Darcemont & Darcemont, in press, Greece (photo: M. Lemonnier-Darcemont); e) R. azami minor, Lombardy, Italy (photo: R. Scherini); f) R. azami minor, Marche, Italy (photo: G. Carotti); g) R. oporina, Spain (photo: R. Kleukers); h) R. azami, France (photo: V. Derreumaux).