Halticorcus duodecimmaculata (S. - H. Chen, 1934)

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

Halticorcus duodecimmaculata (S. - H. Chen, 1934)

Fig. 8 U – X

Host plant.

Polypodiaceae : Phymatosorus scolopendria , Selliguea yakushimensis (Makino) .

Leaf mine.

Full-depth linear-blotch mine on mature leaf (Fig. 8 V – X ). Frass is thread-like, thin, and often intermittent, and deposited along meandering larval trajectory. The fully grown larva exits the mined leaf, falls to the ground, and pupates underground.

Material examined.

• 5 adults, Ômija , Iriomote Is., Yaeyama, Okinawa Pref., 27-III-2018 (as larva on Phymatosorus scolopendria ), emerged on 25-V – 7-VI-2018 (Fig. 8 U, V ) ; • 9 adults, Urauchi , Iriomote Is., Yaeyama, Okinawa Pref., 11-V-1999 (as larva on Selliguea yakushimensis collected by Shirô Kobayashi), emerged on? - VI- 1999 (Fig. 8 W, X ) .

Figures

Figure 8. Habitus of adults and leaf mines of four Halticorcus species A – H H. kasuga I – L H. sauteri M – T H. hiranoi U – X H. duodecimmaculata. Host plants A, B Lepisorus thunbergianus at Mt. Shizuhata, Shizuoka Pref. C Lepisorus onoei at Shôjiko Lake, Yamanashi Pref. D – H L. miyoshianus at Kiso-fukushima, Nagano Pref. I – J Leptochilus neopothifolius at Kanyû, Kakeroma Is., Kagoshima Pref. K – L Cyrtomium falcatum at Imasato, Amami-ôshima Is., Kagoshima Pref. M – O Phymatosorus scolopendria at Tonaki Is., Okinawa Pref. P, Q Loxogramme salicifolia at Inohae, Kitago, Miyazaki Pref. R – T Pyrrosia lingua at Mt. Yuwan, Amami-ôshima Is., Kagoshima Pref. U, V Phymatosorus scolopendria at Iriomote Is., Okinawa Pref. W, X Crypsinus yakushimensis at Iriomote Is., Okinawa Pref.