Leptidea amurensis (Menetries, 1859) (a male (fore wings narrower) and female (fore wings broader) of a summer brood: wings closed) and Pyrgus speyeri (Staudinger, 1887) ssp. (a male; wings open).

Wet sand of the left bank of the Novyi Onon arm of the Onon River 1 km downstream of the village Nizhnii Tsasuchei, Onon District, Chita Province, Transbaikalia, Siberia, Russia, 20th July 1997. O. Kosterin.

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