Sphaeroderma separatum Baly, 1874

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

Sphaeroderma separatum Baly, 1874

Fig. 14 R – V

Host plant.

Ranunculaceae : Clematis japonica . Takizawa (2021) lists up three host plants: C. apiifolia DC. , C. pierotti Miq. and Chelidonium majus L. ( Papaveraceae ).

Leaf mine.

Full-depth radiate mine along leaf vein on mature leaf (Fig. 14 T – V ). Frass is liquefied, deposited near the center of the mine.

Material examined.

• 2 adults copulating on a leaf of Clematis japonica at Shirakawa-gô , Shirakawa, Ôno-gun, Gifu Pref., 12-VIII-2024 (Fig. 14 R, S ), and many leaf mines on the plant species at the same locality 29-IX-2023 (Fig. 14 T – V ) .

Figures

Figure 14. Habitus of adults, habitats, and leaf mines of Akebia - associated and Clematis - associated Sphaeroderma species A – C S. akebia D S. inaizumii E – L S. quadrimaculatum M – Q S. flavonotatum R – V S. separatum. Host plants A – C Akebia trifoliata at Tsuruoka, Yamagata Pref. D Akebia trifoliata at Shôji Lake, Yamanashi Pref. E – G Clematis taiwaniana var. ryukiuensis at Hedo, Okinawa Is., Okinawa Pref. J – L Clematis taiwaniana var. ryukiuensis at Tonaki Is., Okinawa Pref. M – P Clematis tashiroi at Iriomote Is. Okinawa Pref. S – V Clematis japonica at Shirakawa-gô, Gifu Pref.