Zeugophora hozumii Chûjô, 1953

Fig. 2 T – V

Host plant.

Salicaceae: Salix cardiophylla Trautv. et C. A. Mey. Although Takemoto (2019) lists Salix caprea L. as a host plant, this record is not confirmed.

Leaf mine.

Black upper-layer linear-blotch mine on mature leaf (Fig. 2 V). The egg is laid in the leaf blade, and the hatched larva constructs a linear-blotch mine, the upper surface of which turns black. Frass is granular, scattered throughout the mine. The fully grown larva exits the mined leaf, falls to the ground, pupates underground, and hibernates as a pupa.

Material examined.

• 8 adults and many leaf mines, Kitazawa Tôge, Ina, Nagano Pref., 30-VII-2016, feeding lower surface of leaf of Salix cardiophylla (Fig. 2 T – V) ; • 1 adult, Azusa-gawa, Matsumoto, Nagano Pref., 24-X-2020 (as larva on Salix cardiophylla), emerged on 22-III-2021 .