Laasonen E, Laasonen L. Habitual differences of <i>Phyllonorycter salictella</i> (Zeller, 1846 ) and <i>P. heringiella</i> ( Grönlien, 1932) (Lepidoptera: Gracillariidae) in two Finnish materials; a problem pair. Entomol. Fennica [Internet]. 2000Sep.1 [cited 2024Jul.27];11(3):175-81. Available from: https://journal.fi/entomolfennica/article/view/84063