Argopistes tsekooni Chen, 1934

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

Argopistes tsekooni Chen, 1934

Fig. 9 I – N

Host plant.

Oleaceae : Ligustrum obtusifolium Sieb. et Zucc. , Fraxinus sieboldiana Blume , Syringa reticulata (Blume) .

Leaf mine.

Full-depth wide linear mine on mature leaf in young instars and full-depth ophiogenous blotch mine in old instars (Fig. 9 J – N ). The mine is wider than the larval width, and frass is thick thread-like, deposited linearly along the middle line of the mine. The fully grown larva exits the mined leaf, falls to the ground, and pupates underground.

Material examined.

• 3 adults, Mt. Nabejiri , Taga, Shiga Pref., 23-V-2015 (as larva on Ligustrum obtusifolium ), emerged on? - VII- 2015 (Fig. 9 I – K ) ; • 7 adults, Iwakura , Sakyo, Kyoto Pref., 22-IV-2013 (as larva on Fraxinus sieboldiana ), emerged on 3-VI-2013 (Fig. 9 L ) ; • 7 adults, Tôro Lake , Shibecha, Kawakami-gun, Kushiro, Hokkaido, 25-VI-2017 (as larva on Syringa reticulata ), emerged on 8-VIII-2017 (Fig. 9 M, N ) .

Figures

Figure 9. Habitus of adults and leaf mines of four Argopistes species A, B A. coccinelliformis C – H A. biplagiata I – N A. tsekooni O – Q A. ryukyuensis. Host plants A, B Ligustrum ovalifolium at Shirahama, Wakayama Pref. C, D Osmanthus × fortunei at Mizorogaike Lake, Kyôto Pref. E – H Osmanthus heterophyllus at Iwakura, Kyôto Pref. I – K Ligustrum obtusifolium at Mt Nabejiri, Shiga Pref. L Fraxinus sieboldiana at Uri-tôge, Hamamatsu, Shizuoka Pref. M, N Syringa reticulata at Tôro Lake, Kushiro, Hokkaido O – Q Ligustrum japonicum at Abu, Okinawa Is., Okinawa Pref.