Results obtained from light-trapping in six different biotopes of Kivach Nature Reserve in 1991-1993 are discussed. 259 species (which is calculated as 70.8% of the whole known local fauna of fotoxenic moths) are found: in birch forest - 203 species, in ecotone at the boundary between forest and meadow - 180, in Myrtillus pine forest - 171, in Vaccinium pine forest - 131, in aspen forest - 99, in bog - 31 species. Species with low density constitute, altogether, ca. 60-80% from the total catch of Lepidoptera. Epirrita autumnata Borkh. was the dominant species in all the sample sites. The highest species diversity was noted during the course of the period from mid-July to mid-August. For every species data about period of trapping and number are given as well.