About Acleris sparsana (Denis & Schiffermüller), 1775
This moth species has a wingspan of 18–22 mm. Its forewings are light greyish-ochreous, with faint grey strigulation; the base, central fascia, and costal patch are indistinctly darker, with the fascia darkest towards the costa. The hindwings are pale grey. Adult moths are active from June through to May of the following year, and adults hibernate over winter. Young larvae live in a thin web on the underside of leaves of Fagus (beech) species, Carpinus (hornbeam), Acer pseudoplatanus (sycamore), or Acer campestre (field maple). Older larvae build a chamber between spun leaves to feed from, consuming the surrounding foliage. Pupation takes place either on the leaves, or in a thin cocoon on the ground. This species is distributed from western Europe eastward to the Caucasus and Iran.
