Distribution and biological peculiarities in Armenia: The species is found from Asia east to Tian-Shan and parts of China, west to the Balkan, Turkey, eastern Europe to southern Finland. In Asia, it is found in South Asia from India (Himachal Pradesh) westwards to Balochistan and Chitral in Pakistan. In Armenia the subspecies P. v. schiffermulleri (Hemming, 1929) is recorded occupying wide variety of grasslands from semi-deserts located at 600 m a.s.l. up to sub-alpine meadows at 2400 m a.s.l. The host-plants of the Eastern Baton Blue are various species of Thymus. Depending on elevation the species gives one to two generations per year, and the butterflies are recorded on wing from late April till late July.
Population dynamics: The species is usually uncommon within typical habitat, however it demonstrates stable population trend during 2003-2013 (p>0.05). The latest could probably be justified by the fact that the host-plant of the species is not eatable for the livestock, and therefore is not affected by intensive grazing. Although during last year collection of wild Thymus as a tea-herb was expanded and intensified, it appears that it is not affecting the species yet.
Conservation measures: The species is not included in the Global and National Red Lists, as well as in CITES and Bern Conventions, however for European Red Book it was assessed as Near Threatened. Despite on that the assessment of the Eastern Baton Blue's conservation status for Armenia suggests it as a Least Concern. The current distribution range is covered by almost all the Protected Areas, Emerald Sites, and Prime Butterfly Areas, and the species doesn't need any conservation measures. However it is important to continue its monitoring especially in regards of potential scaling up of wild Thymus collection.