Sphaeroderma tarsatum 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 tarsatum Baly, 1874

Fig. 13 D – L

Host plant.

Poaceae : Phyllostachys bambusoides Sieb. et Zucc. , Pleioblastus chino (Franch. et Savat.) var. viridis (Makino) , Sasa kurilensis (Ruprecht) , S. nipponica M. et S., S. senanensis (Franch et Savat.) , Sasamorpha borealis (Hack.) , Shibataea kumasaca Makino , Stipa coreana Honda var. kengii Ohwi ).

Leaf mine.

Upper-layer long linear mine on mature leaf, often adjoining its own trajectory (Fig. 13 E – G, I, L ). The egg is laid in leaf blade, hatched larva mines usually toward leaf apex along leaf vein, and sometimes turns adjoining its past mine. Frass is granular, deposited linearly along the middle line of the mine. The mining larva is found in autumn from October to December. The fully grown larva exits the mined leaf from late autumn to early winter, falls to the ground, and pupates underground. Pupa hibernates under the ground, and the adult emerges the next spring.

Material examined.

• 2 adults, Akiu , Taihaku-ku, Sendai, Miyagi Pref., 14-XI-2014 (as larva on Sasa nipponica ), emerged on 7-V-2015 (Fig. 13 D – G ) ; • 1 adult, Azusagawa , Matsumoto, Nagano Pref., 24-X-2020 (as larva on Sasa senanensis ), emerged on 2-III-2021 (Fig. 13 H, I ) ; • 1 adult, Ashiu , Nantan, Kyoto Pref., 9-XI-1999 (as larva on Sasa kurilensis ), emerged on 28-III-2000 ; 1 adult, Kuchisakamoto , Aoi-ku, Shizuoka, Shizuoka Pref., 27-XII-2005 (as larva on Sasamorpha borealis ), emerged on 1-III-2006 ; • 1 adult, Inogashira , Fujinomiya, Shizuoka Pref., 11-XI-2001 (as larva on Phyllostachys bambusoides ), emerged on 14-V-2002 ; • 3 adult, Usuzuka , Mt. Fuji, Fujinomiya, Shizuoka Pref., 24-X-2019 (as larva on Stipa coreana var. kengii ), emerged on 7–10-IV-2020 (Fig. 13 J – L ) .

Figures

Figure 13. Habitus of adults and leaf mines of monocot-associated Sphaeroderma species A – C S. japanum D – L S. tarsatum M – P S. seriatum. Host plants A – C Commelina communis at Makidô, Niimi, Okayama Pref. E – G Sasa nipponica at Akiu, Sendai, Miyagi Pref. H, I Sasa senanensis at Kamikôchi, Nagano Pref. J – L Stipa coreana var. japonica at Mt. Fuji, Shizuoka M – P Panicum bisulcatum at Yogo Lake, Shiga Pref. (M – O) and at Seryo, Kyôto Pref. (P).