Hæggström, C.-A. 2013. The Hawthorn Moth <i>Scythropia crataegella</i> (Lepidoptera: Yponomeutidae) is probably fairly common in Mariehamn, Åland Islands, Finland. Entomologica Fennica. 24, 2 (Jul. 2013), 122–128. DOI:https://doi.org/10.33338/ef.8349.