About Phyllonorycter corylifoliella (Hübner, 1796)
Phyllonorycter corylifoliella, commonly known as the hawthorn red midget moth, is a moth species belonging to the family Gracillariidae. This moth is found across all of Europe. It has a wingspan of 8 to 9 mm. Its forewings are a reddish-ochreous color, with blackish-grey blotches suffusing the posterior section, and sometimes covering almost the entire wing. A slender white median streak extends from the base of the forewing to near the middle, with a distinct downward sinuation. One slender oblique white streak runs from the middle of the costa, and a second runs from the middle of the dorsum. A whitish tornal dot and anteapical strigula may sometimes be present. The hindwings are grey or dark grey. Fully developed larvae are pale yellowish, with a green dorsal line and a pale brownish head. Adult moths are active in May and August, producing two generations per year. The larvae feed on the leaves of a wide range of host plants, including Amelanchier lamarckii, Amelanchier ovalis, Betula pendula, Betula pubescens, Chaenomeles japonica, Cotoneaster nebrodensis, Crataegus laevigata, Crataegus monogyna, Cydonia oblonga, Malus domestica, Malus sylvestris, Mespilus germanica, Prunus avium, Pyrus amygdaliformis, Pyrus communis, Sorbus aria, Sorbus aucuparia, Sorbus domestica, Sorbus torminalis, and various Spiraea species. Larvae create mines inside the leaves of their host plants while feeding.