The Causes of Penetration of Apatura Fabricius, 1807 (Lepidoptera, Nymphalidae) Species into Western Transbaikalia

摘要

The analysis of the distribution of nemoral diurnal butterflies of the Apatura genus (Lepidoptera, Nymphalidae) and weather conditions in the Transbaikal region has revealed relationships which shed light on the underlying causes of penetration of these butterflies far inside Siberia in the last decades. For all Apatura species, the temperature is the factor which determines their normal habitation conditions, while for Apatura iris and A. metis, air humidity plays an important role as well.