On the Balkan three taxa of Psorodonotus occur on the Balkan: fieberi, illyricus and macedonicus. These were mostly placed as subspecies of P. fieberi. A new thorough study has now shown that they should be treated as separate species. The authors have combined morphological, bioacoustic and DNA data to underpin these conclusion.
Kaya, S., D.P. Chobanov, J. Skejo, K.-G. Heller & B. Çıplak 2015. The Balkan Psorodonotus (Orthoptera: Tettigoniidae): Testing the existing taxa confirmed presence of three distinct species. European Journal of Entomology 112(3): 1-17. doi: 10.14411/eje.2015.050