Sphaeroderma seriatum Baly, 1874

Fig. 13 M – P

Host plant.

Poaceae: Panicum bisulcatum Thunb.

Leaf mine.

Full-depth linear mine on mature leaf (Fig. 13 N – P). The egg is laid along the leaf margin, and the hatched larva mines usually toward leaf apex along leaf margin, and sometimes turns adjoining its mine. Frass is intermittent thread-like, deposited linearly in two rows along both sides of the mine. Mining larva is found in October. The fully grown larva exits the mined leaf from late autumn to early winter, falls to the ground, pupates underground, and the adult emerges in late autumn.

Material examined.

• 3 adults, Yogo Lake, Nagahama, Shiga Pref., 12-IX-2015 (as larva on Panicum bisulcatum), emerged on 7-X-2015 (Fig. 13 M – O) ; • 4 adults, Seryô, Sakyô, Kyoto, Kyoto Pref., 11-IX-1998 (as larva on Panicum bisulcatum), emerged on 28-IX – 1-X-1998 (Fig. 13 P) .