Parornix scoticella is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Gracillariidae

Gracillariidae

Gracillariidae is an important family of insects in the order Lepidoptera and the principal family of leaf miners that includes several economic, horticultural or recently invasive pest species such as the horse-chestnut leaf miner, Cameraria ohridella....

 family. It is known from all of Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

.
The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is about 10 mm. Adults are on wing in May and again in August in two generations in southern parts of the range and in one generation with adults in August in the north.

The larva

Larva

A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle...

e feed on Cotoneaster nebrodensis, Malus sylvestris

Malus sylvestris

Malus sylvestris, the European wild apple, is a species of Malus , native to Europe from as far south as Spain, Italy and Greece to as far north as Scandinavia and Russia. Its scientific name means "forest apple", and the truly wild tree has thorns.In the past, M. sylvestris was thought to be an...

, Sorbus aria

Sorbus aria

Sorbus aria , the Whitebeam or Common Whitebeam is a deciduous tree, compact and domed, with few upswept branches; it generally favours dry limestone and chalk soils. The hermaphrodite cream-white flowers appear in May, are insect pollinated, and go on to produce scarlet berries, which are often...

, Sorbus aucuparia

Sorbus aucuparia

Sorbus aucuparia , is a species of the genus Sorbus, native to most of Europe except for the far south, and northern Asia...

, Sorbus chamaemespilus, Sorbus intermedia

Sorbus intermedia

Sorbus intermedia is a species of whitebeam in southern Sweden, with scattered occurrences in easternmost Denmark , the far southwest of Finland), the Baltic States, and northern Poland....

and Sorbus torminalis. They mine

Leaf miner

Leaf miner is a term used to describe the larvae of many different species of insect which live in and eat the leaf tissue of plants. The vast majority of leaf-mining insects are moths , sawflies and flies , though some beetles and wasps also exhibit this behavior.Like Woodboring beetles, leaf...

the leaves of their host plant. The mine starts with a lower-surface epidermal corridor, but soon the larva starts feeding on the sponge parenchyma. The mine then becomes a flat lower-surface blotch. After leaving the mine, the larva lives freely under a folded leaf margin or in a fold at the underside of the leaf, in its centre, that is covered with silk.