Motýlí fauna přírodní rezervace "Hradčanské rybníky" u Mimoně (Lepidoptera)

Abstract: In 1989–1993 lepidopteran fauna of the nature reserve „Hradčanské rybníky“ near Mimoň (distr. Česká Lípa, Bohemia, Czech Republic) and several localities in Doksy Basin was investigated. In this region bogs and swamp biotopes of various age, size, nature and degree of anthropogenous destruction are surrounded by coniferous and/or mixed tree plantations. These bogs are the lowest ones in the Czech Republic situated in the altitude of 260–280 m a.s.l. 698 species of Lepidoptera were observed, four among them being new for Bohemia [Elachista bisulcella (Duponchel, 1843), Brachmia blandela (Fabricius, 1798), Dioryctriamutatella Fuchs, 1903, and Dioryctria sylvestrella (Ratzeburg, 1840)], two new for the whole Czech Republic [Monochroa suffusella (Douglas, 1850) and Syncopacma larseniella Gozmány, 1957]. New localities are given for a number of other species. The local fauna was compared with that of bogs in southern Bohemia: the lists of tyrphophilous species were similar. This indicates that the age of bogs in northern Bohemia (at least some of them) is comparable, too. In three species trophically associated with Ledum palustre but found also outside the bogs the question of their tyrphobiont status is discussed.

Key words: Lepidoptera, ecofaunistics, bogs, nature reserve, Northern Bohemia