A method to identify the net-winged insects without preparation of genitalia is proposed. The method is based on morphometric indices of fore wing venation and is applied to Neuroptera of the Ukrainian Carpathians. A key to nine neuropteran families is compiled, with an emphasis on Chrysopidae. Keys to eight genera and eleven species of the genus Chrysopa is provided. A statistical analysis of the variability of diagnostic traits is given for each species and possibility of using morphometric indices is substantiated for species identification.