Plebejus tancrei Graeser, 1888 (= Lycaeides tancrei).
Range: East Siberia, the lower Amurland, Kamchatka.
ssp.: verkhojanicus (Kurentzov, 1970); range: the northern E Siberia, including the Ochot Sea coast.
A male on a flower of Geranium erianthum DC.; wings open.
A flowery slope of the coastal terrace at the Burgauli River mouth on the southern coast of the Koni Peninsula, Ola District, S Magadan Province, Russia. 17th July, 1989. Oleg Kosterin.