Rowan - Sorbus aucuparia

Apple Leaf Miner

Lyonetia clerkellais a tiny moth (wingspan 7 to 9 mm) with a silvery appearance but very attractively patterned when seen under magnification. 

The larva produces a leafmine on a number of species, especially Cherry, Apple, Rowan, Hawthorn, Blackthorn and other trees and shrubs in the Rosaceae family.  It is also commonly found on Birch. The mine is long smoothly curved gallery with frass in a central line; older mines look whitish. The larva is long and slender. It has a segmented body and 6 dark feet.

Stigmella sorbi

The larva of the moth Stigmella sorbi mines the leaves of Rowan.  The mine is a narrow gallery soon becoming a large round blotch with scattered frass sometimes looking rather like a tadpole, and these are very obvious, often several to a compound leaf. 

Stigmella magdalenae

The larva of the moth Stigmella magdalenae mines the leaves of Rowan. The mine is a long narrow gallery, often contorted, with a thin central line of linear frass.

Stigmella nylandriella

The larva of the moth Stigmella nylandriella creates distinctive mines in the leaves of Rowan, usually following the serrated edge of the leaf.

Parornix scoticella

The larva of the moth Parornix scoticella feeds on Rowan and Whitebeam and occasionally on Apple. A blotch is formed in the leaf which turns brown, and the larva pupates in a folded portion of the leaf.

Phyllonorycter sorbi

The larva of the moth Phyllonorycter sorbi mines the leaves of Rowan or Bird Cherry, and occasionally on Whitebeam or other hosts in the Rosaceae, creating a long tentiform mine along the midrib/eaf-edge on Rowan. The under-surface has several sharp folds. The pupa inside is in a strong white cocoon. The mature larva is yellow with a pale brown head.