抄録
We report 63 species of butterflies collected along the middle stream of the Lena River, Eastern Siberia, Russia. The following butterflies, Agriades glandon wosnesenskyi, Inachis io io, Euphydryas maturna, E. iduna iduna, Mellicta menetriesi kolymskya, Argynnis paphia neopaphia and Clossiana erda are not included in those collected in the same area in our previous report (Takahashi et Kaymuk, 1997). Besides, we comment on classification and distribution of some species.
