Early summer aspect of butterflies (Lepidoptera: Papilionoidea) of Republic of Khakassia as examined in 2000, with some additional data Author Kosterin, Oleg E. text Amurian Zoological Journal 2023 XV 2 325 354 http://dx.doi.org/10.33910/2686-9519-2023-15-2-325-354 journal article 10.33910/2686-9519-2023-15-2-325-354 2686-9519 12816849 912125ED-10E5-4A6C-86E7-548CCD69F364 Oeneis aktashi ona Korshunov, 1996 Specimens: 14\Sayanskiy Pass, 4♂ , 4♀ . Remarks: Sayanskiy Pass is the type locality of this species, so the specimens collected were topotypes . Observations: A strictly highland species which occurred only on screes on slopes above the pass, with average vegetation cover varying from ca 50% to zero. They flew very fast and for long distances but readily landed exclusively on flat shale stones of which those screes were composed. There they sat mostly in a vertical position, but when the sun hid behind a cloud they almost laid on one side ( Fig. 14 ), seemingly to be oriented perpendicular to the sun when it reappears. But if the sun did not reappear soon, they, keeping the same laying position, crawled towards a stone margin and hid between stones. A copulating pair was noticed on top of a local relief maximum.