Zeugophora japonica Chujo 1951

Zeugophora japonica Chûjô, 1951 Fig. 2 W – Z Host plant. Salicaceae: Populus suaveolens Fisch. Leaf mine. Black upper-layer blotch mine on mature leaf, sometimes gregarious (Fig. 2 X – Z). The egg is laid along the leaf margin, and the hatched larva constructs a 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. Material examined. • 1 adult, Rekifune Nakanokawa, Taiki, Tokachi, Hokkaidô, 23-VI-2017 (as larva on Populus suaveolens), emerged on 21-VIII-2017 (Fig. 2 W – Z); • 2 adults, Rubeshibe, Kitami, Hokkaidô, 25-VI-2017 (as larva on P. suaveolens), emerged on 21-VIII-2017.