Zeugophora japonica Chûjô, 1951

Kato, Makoto & Imada, Yume, 2025, Diversity and host plant utilization of leaf-mining beetles of Chrysomeloidea (Coleoptera) in Japan, ZooKeys 1238, pp. 209-268 : 209-268

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 .

Figures

Figure 2. Habitus and feeding scars of adult beetles and leaf mines of eight Zeugophora species A, B Z. nigricolis C – E Z. unifasciata F – I Z. chujoi J – M Z. flavonotata N – Q Z. annulata R, S Z. varipes T – V Z. hozumii W – Z Z. japonica. Host plants A, B Euonymus sieboldianus at Hirayu, Gifu Pref. C – E E. sieboldianus at Sugadaira, Nagano Pref. F – I E. fortunei at Nagao-toge, Shizuoka Pref. J – L E. tanakae at Yutsun, Iriomote Is., Okinawa Pref. M E. japonicus at Hoshidate, Iriomote Is., Okinawa Pref. N, O E. alatus at Kiyosato, Yamanashi Pref. P E. melananthus at Mt. Tara, Nagasaki Pref. Q E. fortunei at Mt. Myôjô, Niigata Pref. R, S Symplocos sawafutagi at Iyari, Nagano Pref. T – V Salix cardiophylla var. urbaniana at Kitazawa-toge, Nagano Pref. W – Z Populus suaveolens at Sôunkyô, Hokkaido.