Sphaeroderma quadrimaculatum Chûjô, 1935

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 quadrimaculatum Chûjô, 1935

Fig. 14 E – L

Host plant.

Ranunculaceae : Clematis taiwaniana Hayata var. ryukiuensis Tamura.

Leaf mine.

Full-depth linear mine on mature leaf (Fig. 14 F – H, L ). Frass is granular and minute, deposited linearly in two rows along both sides of the mine. The fully grown larva exits the mined leaf in early winter, falls to the ground, and pupates underground.

Material examined.

• 2 adults, Hedo , Kunigami, Okinawa Pref., 10-XI-2021 on Clematis taiwaniana var. ryukiuensis (Fig. 14 E ) ; • 3 adults, Hedo , Kunigami, Okinawa Pref., 14-X-2000 (as larva on C. taiwaniana var. ryukiuensis ), emerged on 21-XI – 10-XII-2000 (Fig. 14 F – H ) ; • 2 adults, Tonaki Is. , Shimajiri-gun, Okinawa Pref., 18-III-2020 (as larva on C. taiwaniana var. ryukiuensis ), emerged on 10-V-2020 (Fig. 14 I – L ) .

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.