Tarasova A.A., Ponomarenko M.G.
A.I.Kurentsov memorial lectures 2021; (32): 102 - 113
The species diversity of ermine moths of the genus Yponomeuta Latr., both in the Asian part of Russia and in foreign countries of East Asia, has been studied extremely poorly. That is confirmed by the small number of registered species, especially from the southern territories. At present, the southern continental regions of the Russian Far East, namely Primorian (20 species), Middle Amurian (10 species) and Lower Amurian (8 species), are comparable in faunistic richness with neighboring foreign countries - Japan (20 species), Korea (14 species) and China (14 species). A qualitative analysis of the faunas of the Far Eastern and East Siberian regions, as well as neighboring foreign countries, using different methods in the PAST program showed that the richer regional fauna is characterized by the lower coefficient of similarity between its species compositions and other territories. At the moment, in the Russian Far East the ermine moth fauna of the Primorian region (20 species) is the richest and has indices of similarity with the faunas of the adjacent Far Eastern regions as following - 0.67 (Middle Amurian region) and 0.57 (Lower Amurian region) and with the faunas of Eastern Asian territories - 0.65 (Japan), 0.65 (Korea) and 0.59 (China). However, a higher similarity index, 0.78, was established between the faunas of the Middle Amurian and Lower Amurian regions, which, in comparison with the Primorian region, have species lists by 2 and 2.5 times less, respectively. As result of Hierarchical clustering the most faunistically rich Primorian region is rooted within single claster together with countries of Eastern Asia. On the dendrogram Primorian region forms a common cluster with China (similarity index 0.59). According to the results of Correspondence analysis and Network Plot, the higher faunistic similarity and more significant relationships in the group of the Far Eastern regions were defined between Middle Amurian and Lower Amurian (7 identical species), Sakhalinian and South Kurilian (5 identical species), Lower Amurian and Sakhalinian (5 identical species) and Middle Amurian and Primorian (10 identical species). More significant faunistic relationships of the Russian Far Eastern regions with neighboring countries of East Asia were established between Sakhalinian region and China (7 identical species); Primorian region with countries: China (10 identical species), Korea (11 identical species) and Japan (13 identical species).
