Roeseliana Zeuner 1941

KEY TO SPECIES OF ROESELIANA ZEUNER, 1941 IN THE SOUTHWESTERN BALKANS Females 1. Sternum 6 and 7 with bumps................................................................................. R. bispina (Bolivar, 1899) — Sternum 6 and 7 not modified.................................................................................................................... 2 2. Subgenital plate trapezoidal in shape, wider than high, the lobes truncated horizontally. Narrow and shallow excision between the two lobes............................................................................................ R. epirotica n. sp. — Subgenital plate widened with lobes slightly pointed. Deep and large excision of the subgenital plate......... 3 3. Lobes of subgenital plates almost triangular in shape. Excision of the subgenital plate reaching beyond the middle.............................................................................................................. R. roeselii (Hagenbach, 1822) — Lobes more rounded on external part. Excision of the subgenital plate reaching at most to the middle...................................................................................................................................... R. ambitiosa (Uvarov, 1924) Males 1. Last tergite indented over a narrow width. Internal tooth of cerci longer than width of cercus at the point of insertion of the tooth. Tooth bent forward...................................................................................... R. roeselii — Last tergite indented over a large width. Internal tooth of cerci as most as long as the width of cercus at the point of insertion of the tooth. Tooth not bent, more rounded.................................................................... 2 2. Titillators slightly curved............................................................................................................. R. ambitiosa — Titillators strongly curved with the apex in the shape of a beak................................................................... 3 3. A very few number of spines, only located on the apex of the titillators............................... R. epirotica n. sp. — A larger number of spines on the titillators, from the base to the apex............................................ R. bispinaPublished as part of Lemonnier-Darcemont, Michèle & Darcemont, Christian, 2023, New data on the distribution of the genus Roeseliana Zeuner, 1941 (Orthoptera, Tettigoniidae, Tettigoniinae) in the southwestern Balkans, with description of R. epirotica n. sp., pp. 445-450 in Zoosystema 45 (14) on page 449, DOI: 10.5252/zoosystema2023v45a14, http://zenodo.org/record/820029