Abstract
A new interesting species of the genus Isophya, I. horon sp. n., is described from Northeastern part of Turkey. The new species can clearly be distinguished from the closely related species by the calling song of male, and morphology. Morphologically, the shapes of the pronotum, tegmina, male cerci and ovipositor are distrinctive. The morphology, song structure and distribution clearly indicate that this new species is a member of the I. zernovi species-group. Additionally, some preliminary data on the male calling songs of closely related species (I. zernovi, I. karadenizensis and I. autumnalis) are also given. In addition, the preliminary data related to spermatophore characteristics (spermatophylax and ampulla weights) and sperm number of the new species are provided.
References
Atalay, İ. (2018) Vegetation. In: Kapur, S., Akça, E. & Günal, H. (Eds.), The Soils of Turkey. Springer International Publishing, Cham, pp. 15–24.
https://doi.org/10.1007/978-3-319-64392-2_2Bei-Bienko, G.Y. (1954) Orthoptera. Vol. II. Sectition 2. Tettigonioidea Phaneropterinae, fauna of the U. S. S. R. Zoological Institute Akademii Nauk SSSR, Moskva-Leningrad, 385 pp. [Eglish translation 1965 Jerusalem (Israel program for Scientific Translations)]
Chobanov, D. P., Kaya, S., Grzywacz, B., Warchalowska-Sliwa, E. & Çıplak, B. (2017) The Anatolio-Balkan phylogeographic fault: a snapshot from the genus Isophya (Orthoptera, Tettigoniidae). Zoologica Scripta, 46, 165–179.
https://doi.org/10.1111/zsc.12194Cigliano, M.M., Braun, H., Eades, D.C. & Otte, D. (2018) Orthoptera Species File. Version 5.0/5.0. Available from: http://orthoptera.speciesfile.org (accessed 9 September 2018)
Heller, K.-G. (1988) Bioakustik der Europaischen Laubheuschrecken Ökologie in Forschung und Anwendung. Margraf Verlag, Weikersheim, 358 pp.
Heller, K.G., Orci, K.M., Grein, G. & Ingrisch, S. (2004) The Isophya species of central and western Europe (Orthoptera: Tettigonioidea, Phaneropteridae). Tijdschrift voor Entomologie, 147, 237–258.
https://doi.org/10.1163/22119434-900000153Karabağ, T. (1962) Some new and little known Phaneropterinae (Orthoptera: Tettigoniidae) from Turkey. Proceedings of the Royal Entomological Society of London, 31, 4–10.
Ramme, W. (1951) Zur systematik, faunistik und biologie der Orthopteren von Südost Europa und Vorderasien. Mittelungen aus dem Zoologischen Museum, Berlin, 27, 1–432, pls. 1–39.
Sevgili, H. (2003) A new species of bushcricket (Orthoptera : Tettigoniidae) of the palaearctic genus Isophya (Phaneropterinae) from Turkey. Entomological News, 114, 129–137.
Sevgili, H. (2004) A revision of Turkish species of Isophya Brunner von Wattenwyl (Orthoptera: Tettigoniidae: Phaneropterinae). PhD Thesis (unpublished), Hacettepe University, Ankara, 387 pp.
Sevgili, H. (2016) Spermatophore weight and sperm number in the southernmost species of the genus Poecilimon Fischer, 1853 (Orthoptera: Phaneropterinae). Acta Biologica Turcica, 29, 83–88.
Sevgili, H., Çıplak, B., Heller, K. & Demirsoy, A. (2006) Morphology, bioacoustics and phylogeography of the Isophya major group (Orthoptera : Tettigoniidae : Phaneropterinae): A species complex occurring in Anatolia and Cyprus. European Journal of Entomology, 103, 657–671.
https://doi.org/10.14411/eje.2006.086Sevgili, H., Çağlar, S.S. & Sağlam, İ.K. (2010) Re-evaluation of the genus Phonochorion (Orthoptera: Tettigoniidae: Phaneropterinae). European Journal of Entomology, 107, 631–645.
https://doi.org/10.14411/eje.2010.072Sevgili, H., Demirsoy, A. & Çıplak, B. (2012) Description and bioacoustics of a new species of the genus Isophya (Orthoptera: Tetigoniidae: Phaneropterinae) from Turkey. Zootaxa, 3361, 33–44.
Sevgili, H., Önal, H. & Yiğit, A. (2015) Mating behavior and spermatophore characteristics in two closely related bushcricket species of the genus Phonochorion (Orthoptera: Phaneropterinae). Journal of Insect Behavior, 28, 369–386.
https://doi.org/10.1007/s10905-015-9509-1Uma, R. & Sevgili, H. (2015) Spermatophore allocation strategy over successive matings in the bushcricket Isophya sikorai (Orthoptera Phaneropterinae). Ethology Ecology & Evolution, 27, 129–147.
https://doi.org/10.1080/03949370.2014.896830Ünal, M. (2005) A new species of Isophya Brunner von Wattenwyl (Orthoptera: Tettigoniidae : Phaneropterinae) from Turkey. Entomological News, 116, 209–216.
Zhantiev, R., Korsunovskaya, O. & Benediktov, A. (2017) Acoustic signals of the bush-crickets Isophya (Orthoptera: Phaneropteridae) from Eastern Europe, Caucasus and adjacent territories. European Journal of Entomology, 114, 301–311.
https://doi.org/10.14411/eje.2017.037