* D. rizeanum Breuning and Villiers, 1967: 60 (Pedestredorcadion)

Type information: Holotype ♂, The Natural History Museum, London [type locality ‘ Sivrikaya ’ (Turkey: Rize)]

ikizderense Breuning, 1973: 54 [Turkey: Rize: İkizdere]

Provincial distribution in Turkey: TR-A: RI (Breuning and Villiers 1967; Breuning 1973; Holzschuh 1977; Braun 1978a; Özdikmen 2007, 2010, 2012; Löbl and Smetana 2010; Danilevsky 2015a)

Range: A: TR

* D. robustum Ganglbauer, 1884: 500

Type information: Holotype ♂, ex collection G. Kraatz, Deutsches Entomologisches Institut, Eberswalde [type locality ‘ Amasya ’ (Turkey)]

Provincial distribution in Turkey: TR-A: AM (Ganglbauer 1884; Breuning 1962a; Löbl and Smetana 2010; Özdikmen 2010, 2012; Danilevsky 2015a)

Range: A: TR