Psylliodes aff. subrugosa Jacoby, 1885

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

Psylliodes aff. subrugosa Jacoby, 1885

Fig. 7 Q – T

Note.

Two female specimens were reared and tentatively identified as related to this species, but there is a possibility that this is an undescribed species.

Host plant.

Brassicaceae : Arabis hirsuta (L.). Crucifers are known as host plants ( Kimoto and Takizawa 1993), while its biology has not been reported.

Leaf mine.

Linear mine in the midrib and the petiole of mature leaf (Fig. 7 R – T ). The egg is laid on the petiole, and the hatched larva mines the petiole, and sometimes enter the midrib. The mined petiole becomes blackish. Frass is deposited compactly in a few parts of the mine, and sometimes discharged from the mine through perforated holes. The fully grown larva (Fig. 7 N ) exits the mined leaf, falls to the ground, and pupates underground. The adult emerges ~ 1 month after pupation.

Material examined.

• 2 adults, Higashimata , Shimosuwa, Suwa-gun, Nagano Pref., 28-VI-2020 (as larva on Arabis hirsuta ), emerged on 9-VIII-2020 (Fig. 7 Q, S, T ) : several leaf mines on Arabis hirsuta, Sanjiro, Matsumoto , Nagano Pref., 28-VII-1995 (Fig. 7 R ) .

Figures

Figure 7. Habitus of adults and larvae, habitat, and leaf mines of three Psylliodes species A – J P. punctifrons K – P P. sasakii Q – T P. subrugosa. Host plants A – F Brassica juncea at Kizu-gawa, Kyôto G – I Raphanus sativus var. hortensis at Notojima Is., Ishikawa Pref. K – M Eutrema japonicum at Futamata, Oshamanbe, Hokkaido N – P Eutrema japonicum at Nyûkawa, Takayama, Gifu Pref. Q – T Arabis hirsuta at Shimo-suwa, Nagano Pref.