''Phyllonorycter ulmi'' is a moth of the family Gracillariidae. It is known from

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

( Hokkaido island), Korea and the Russian Far East. The wingspan is 5–6 mm. The larvae feed as

leaf miner A leaf miner is any one of numerous species of insects in which the larval stage lives in, and eats, the leaf tissue of plants. The vast majority of leaf-mining insects are moths (Lepidoptera), sawflies (Symphyta, the mother clade of wasps), ...

s on ''Ulmus davidiana'' var. ''japonica'', ''

Ulmus japonica ''Ulmus davidiana'' var. ''japonica'', the Japanese elm, is one of the larger and more graceful Asiatic elms, endemic to much of continental northeast Asia and Japan, where it grows in swamp forest on young alluvial soils, although much of this ...

'', '' Zelkova serrata'' and '' Ulmus laciniata''. The mine is ptychonomous and created on the upper surface of the leaves.

References

ulmi Moths of Japan Moths of Asia Moths described in 1963 Taxa named by Tosio Kumata Moths of Korea Insects of Russia {{Phyllonorycter-stub