Expanze zavíječe bahenního Ostrinia palustralis v České republice (Lepidoptera: Pyralidae)

Abstract: A century ago, the distribution of Ostrinia palustralis (Hübner, 1796) was restricted to lowland wetlands in the southernmost parts of the Czech Republic. During the last two decades, an increasing number of records from across the country indicate its northward expansion and colonisation of higher altitudes. The expansion of O. palustralis is consistent with other recently documented cases of expansion of southern species in Central Europe, which can be attributed to habitat change and a warming climate. However, it is one of few such cases for the comparatively little studied microlepidopteran families.

Key words: Lepidoptera, distribution, faunistics, central Europe, wetland habitat, wet meadows