In this major work the Balkan species of Isophya are critically reviewed, with a revision of the modesta -group. Isophya leonorae and I. petkovi are placed as subspecies to I. rhodopensis . Furthermore five new synonymies are established. In the new list 21 species are recognised to occur on the Balkans. A key, tables, bioacoustic information and many illustrations are provided for identification purposes and for all species a distribution map is presented.
Source: D.P. Chobanov, B. Grzywacz, I. Ş. Iorgu, B. Ciplak, M.B. Llieva & E. Warchałowska-Sliwa 2013. Review of the Balkan Isophya (Orthoptera: Phaneropteridae) with particular emphasis on the Isophya modesta group and remarks on the systematics of the genus based on morphological and acoustic data. Zootaxa 3658: 001-081. Preview: http://www.mapress.com/zootaxa/2013/f/z03658p081f.pdf