Mantura clavareaui Heikertinger, 1912

Fig. 5 A – I

Host plant.

Polygonaceae: Rumex japonicus Houtt., Polygonum aviculare L. Rumex acetosa L. is also recorded as a host plant (Kimoto and Takizawa 1993).

Leaf mine.

Full-depth linear mine occurs on mature leaf (Fig. 5 D – F, I). The larva alternates mining the leaf blade and mining the midrib, the petiole, and the shoot, and often relocates its mine. Frass is granular, deposited linearly along middle line of the mine. The fully grown larva exits the mined leaf, falls to the ground, and pupates underground.

Material examined.

• 3 adults, Kôda, Notojima Is., Nanao, Ishikawa Pref. 2-V-2023 (as larva on Rumex japonicus), emerged on 22-V-2023 (Fig. 5 A – F) ; • 21 adults, Kamematsu, Shivani, Kumamoto Pref., 28-IV-2017 (as larva on R. japonicus), emerged on 13–14-V-2017 ; • 14 adults, Mihonoseki, Matsue, Shimane Pref., 15-V-2006 (as larva on Polygonum aviculare), emerged on 31-V – 3-VI-2006 (Fig. 5 G – I) .