Abstract
Variability of genitalia shape and male calling signal pattern in Macropsidius involutus from 10 localities in South-eastern Europe (the Crimea, the Lower Volga Region), Kazakhstan, and Kyrgyzstan was investigated. Variability of pygofer processes, penis shape, and signal pattern clearly has a geographic component, but none of these traits clearly supports subdividing this species into different subspecies unequivocally. M. involutus was found at altitudes from 0 up to ca. 2000 m a. s. l. in steppes and deserts in the plains and in steppe zones of mountains. Apparently, different environmental conditions in different parts of its range led to divergence of local populations, but the absence of zoogeographical barriers between them makes possible gene exchange and thus prevents emergence of clearly delineated subspecific taxa.
References
Dlabola, J. (1963) A revision of the leafhopper genus Macropsidius Rib. (Hom., Auchenorrhyncha). Acta Societatis Entomologice Čehosloveniae, 60 (1–2), 114–124.
Logvinenko, V.N. (1965) New species of Auchenorrhyncha from the Crimea. Dopovidi Akademii Nauk Ukrainskoi RSR, 11, 1526–1530. [in Ukrainian with English summary]
Mityaev, I.D. (1971) Cicadinea of Kazakhstan. Keys for identification of species. "Nauka" Publ., Alma-Ata, 211 pp. [in Russian]
Mityaev, I.D. (1973) A description of some leafhoppers of the genus Macropsidius Rib., 1952 (Homoptera, Cicadellidae) from Kazakhstan. Entomologicheskoe Obozrenie, 52 (2), 347–351. [in Russian]
Mityaev, I.D. (2002) Fauna, ecology and zoogeography of Auchenorrhyncha of Kazakhstan. Tethys Entomological Research, 5, 1–168 [in Russian]
Tishechkin, D.Yu. (2006) Leafhoppers of the genus Macropsidius (Homoptera, Cicadellidae, Macropsinae) of European Russia. Zoologicheskii Zhurnal, 85 (4), 470–478. [in Russian with English summary, English translation: Entomological Review, 86 (2), 230–239]
https://doi.org/10.1134/S0013873806020102Tishechkin, D.Yu. (2014) Review of species of the genus Macropsidius Ribaut, 1952 (Homoptera: Cicadellidae: Macropsinae) of Russia and adjacent territories. Russian Entomological Journal, 23 (3), 155–167. Available from: http:// kmkjournals.com/upload/PDF/REJ/23/ent23_3_155_167_Tishechkin.pdf (accessed 2 February 2018)
Tishechkin, D.Yu. (2016) Host plant shifts and transitions into new adaptive zones in leafhoppers: the example of Macropsinae (Homoptera: Auchenorrhyncha: Cicadellidae) of Russia and adjacent countries. Zootaxa, 4121 (2), 117–132.
https://doi.org/10.11646/zootaxa.4121.2.2Vilbaste, Yu.G. (1980) Fauna of Cicadinea of Tuva. Valgus Publ., Tallinn, 219 pp. [in Russian with English summary]