Zeugophora nigricolis (Jacoby, 1885)

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 nigricolis (Jacoby, 1885)

Fig. 2 C – E

Host plant.

Celastraceae : Euonymus sieboldianus Blume.

Leaf mine.

Upper-layer ophiogenous blotch mine on the mature leaf (Fig. 2 D, E ). Within the blotch, the larval trajectory itself is linear and meandering compactly. The egg is laid along the basal margin of the leaf and the hatched larva mines along the leaf margin, abruptly expanding the mine. Within the blotch, the larval trajectory itself is linear and meandering compactly. Frass is granular and deposited along the meandering trajectory. The fully grown larva exits the mined leaf, falls to the ground, and pupates underground.

Material examined.

• 2 adults, Sugadaira , Ueda, Nagano Pref., 18-VI-2017 (as larva on Euonymus sieboldianus ), emerged on 20–28-VII-2017 (Fig. 2 C – E ) .

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.