About Swammerdamia pyrella de Villiers, 1789
Swammerdamia pyrella is a moth species belonging to the family Yponomeutidae. It can be found in Europe, North America, and Japan. This moth has a wingspan of 10 to 13 millimeters. Its head is white or whitish ochreous. The thorax is dark fuscous and sprinkled with whitish scales. Forewings are fuscous with a faint purplish tinge, closely speckled with dark fuscous, and irregularly sprinkled with whitish scales; it has an entire dark purplish fuscous fascia positioned before the middle of the wing, plus a whitish anteapical spot on the costa, and cilia that are dark coppery-fuscous. Hindwings are grey. Fully grown larvae are pale yellow, with a dark red-brown subdorsal line; segments 4 through 12 have pale brown bands on their anterior ends; the larval head is brown, with blackish sides. The moth produces two generations a year, with adults active from late April to August. The larvae feed on plants including Crataegus, apple, pear, and cherry.
