The eastern baton blue is 20 to 26 mm in size. The male butterfly is pale dusky blue with a broad border, while the female is brown. The butterfly is named for its prominent chequered fringe.[4] In Seitz, it is described as a form of Baton — In Anterior Asia, the males have a brighter colour, which has often a silvery white sheen; this is clara Christ. — vicrama from Afghanistan, has no distinct discocellular spot on the upperside of the forewing, there being also no dark marginal dots on the hindwing above. — cashmirensis Moore, form Kashmir, has a distinct black discocellular spot on the forewing like the European forms on the upperside, moreover, the forewing bears whitish marginal lunules and dark veins and the hindwing marginal dots.[5]
Subspecies
P. v. vicrama (Pamirs-Alai, Ghissar-Darvaz, Tian-Shan, north-western India)
P. v. cashmirensis (Moore, 1874) Northeast Kashmir
P. v. astabene (Hemming, 1932) (Kopet-Dagh)
P. v. clara (Christoph, 1887) (The Balkans, Middle East, United Arab Emirates, Oman, Turkestan)
P. v. pallida (Shchetkin, 1960) (Turan, southern Ghissar)
P. v. schiffermulleri (Hemming, 1929) (south-eastern Europe, Asia Minor, Caucasus, Transcaucasia, western Siberia, Altai)
^Seitz, A. in Seitz, A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren) This article incorporates text from this source, which is in the public domain.
References
Beccaloni, George; Scoble, Malcolm; Kitching, Ian; Simonsen, Thomas; Robinson, Gaden; Pitkin, Brian; Hine, Adrian; Lyal, Chris. "The Global Lepidoptera Names Index (LepIndex)". Natural History Museum, London. Retrieved 2016-10-15.