Fagus orientalis Fagus orientalis Fagus orientalis, commonly known as the Oriental beech, is a deciduous tree in the beech family Fagaceae. It is native to Eurasia, in Eastern Europe and Western Asia. "Fagus orientalis" is a large tree, capable of reaching heights of up to tall and trunk diameter, though more typically tall and up to trunk diameter. The leaves are alternate, simple, and entire or with a slightly crenate margin, long and broad, with 7–13 veins on each side of the leaf (6–7 veins in "F. sylvatica"). The buds are long and slender, long and thick, but thicker, till , where
Stigmella hemargyrella Stigmella hemargyrella Stigmella hemargyrella is a moth of the Nepticulidae family. It is found in most of Europe, except Iceland, Norway, Finland, Portugal and most of the Baltic region. The moths (imago) are bivoltine flying from April to May and again from July to August and can be found resting on trunks. The wingspan is 5–6 mm. The egg can be laid on either side of the leaf and the pale yellowish-white larva feed, within a mine on "Fagus sylvatica" and "Fagus sylvatica orientalis". The mine is a sinuous gallery and at the early state is relatively narrow with a