Eur. J. Entomol. 103 (3): 657-671, 2006 | DOI: 10.14411/eje.2006.086

Morphology, bioacoustics and phylogeography of the Isophya major group (Orthoptera: Tettigoniidae: Phaneropterinae): A species complex occurring in Anatolia and Cyprus

Hasan SEVGILI1, Battal ÇIPLAK*,2, Klaus Gerhard HELLER3, Ali DEMIRSOY4
1 Department of Biology, Faculty of Art & Science, Harran University ùanliurfa, Turkey
2 Department of Biology, Faculty of Art & Science, Akdeniz University 07058 Antalya, Turkey
3 Grillenstieg 18, 39120 Magdeburg, Germany
4 Department of Biology, Faculty of Science, Hacettepe University Ankara, Turkey

The species of the Isophya major-group (Orthoptera: Tettigoniidae: Phaneropterinae), are reviewed. I. major Brunner von Wattenwyl and I. mavromoustakisi Uvarov are redescribed. Two new species are described; Isophya mersinensis Sevgili & Çiplak sp. n. and Isophya salmani Sevgili & Heller sp. n. from south Anatolia. Illustrations of morphology and male calling song are provided and a detailed comparison of the four species in the group is presented. We conclude that these four species constitute a natural group in sharing male cerci with two or more denticles not ordered in a line, a character unique to this species group within the genus. From an evaluation of their morphology and song characteristics, relationships among the species in the group are I. major + (I. mersinensis sp. n. + (I. salmani + I. mavromoustakisi). Based on the the distribution pattern and habitat preference, we concluded that the division of I. salmani and I. mavromoustakisi was a vicariant event resulting from the separation of Cyprus and Anatolia due to reflooding of the Mediterranean after the Messinian salinity crisis at the beginning of the Pliocene, around 5 My ago.

Keywords: Orthoptera, Phaneropterinae, Isophya, I. major, I. mavromoustakisi, I. mersinensis sp. n., I. salmani sp. n., biogeography, Anatolia, Cyprus, Turkey, Eastern Mediterranean

Received: May 3, 2005; Revised: February 2, 2006; Accepted: February 2, 2006; Published: July 3, 2006  Show citation

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SEVGILI, H., ÇIPLAK, B., HELLER, K.G., & DEMIRSOY, A. (2006). Morphology, bioacoustics and phylogeography of the Isophya major group (Orthoptera: Tettigoniidae: Phaneropterinae): A species complex occurring in Anatolia and Cyprus. EJE103(3), 657-671. doi: 10.14411/eje.2006.086
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