其他摘要:We studied species diversity of families Chrysopidae and Hemerobiidae (Neuroptera) at the Borská nížina Lowland, Slovakia. At five sites, we reported 12 neuropteroid species (6 from family Chrysopidae and 6 from family Hemerobiidae). The study of infraspecific variability of morphometric and morphological characters of Chrysoperla carnea (Stephens, 1836) s. str. revealed no significant variability of wing characters of Chrysoperla carnea s. str. in relation to the same sex as well as between sexes and no differences were documented in size and shape of individuals. The wing length does not manifest infraspecific variability. The largest variability within the species was found in the wing width, where female have wider wings then males.