First record of the genus Etainia (Lepidoptera: Nepticulidae) with four species new to Korea

The genus Etainia is reported from Korea for the first time, with four newly recorded species: Etainia capesella (Puplesis), E. peterseni (Puplesis), E. sabina (Puplesis), and E. trifasciata (Matsumura). The images and identification key of the adults and male genitalia of the species are provided, and DNA barcodes for precise identification of the species are also given.