♂, Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, Mae Hong Son, Thailand.		♂, Sekong, Laos.

ON : Polyommatus albocaeruleus Moore, 1879 OD : Proc. zool. Soc. Lond. 1879(1):139. TL : Deyra Doon, India. (NHML) Distribution : Himalayas to Myanmar, Thailand, Laos, Cambodia, Vietnam, China, Taiwan, Japan.

Cyaniris ceyx amadis Fruhstorfer, 1910 : Stett. ent. Ztg. 71(2):295. TL. West China.
Lycaenopsis albocaeruleus sauteri Fruhstorfer, [1917] : Arch. Naturgesch. (A)82(1):13. TL. Formosa.

albocaerulea ; Lectytype ♂, Deyra Doon. designated by Eliot & Kawazoé,1983. (NHML)
amadis ; Lectotype ♂, China.
sauteri ; Holotype ♂, Taiwan. (Ent. Mus., Dahlem)

[ THAILAND ]
Udara albocaerulea albocaerulea ; Ek-Amnuay,[2007] : 566 pl.256, figs.L94,♂,♂(Un).
Udara albocaerulea albocaerulea ; Ek-Amnuay,2012 : 584, pl.265, figs.L119,♂,♂(Un). (Mae Hong Son)
Udara albocaerulea albocaerulea ; Kimura et al.,2014 : 193, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un),♀,♀(Un). (Doi Pha Hom Pok; Doi Suthep; Doi Inthanon)

[ LAOS ]
Udara albocaerulea albocaerulea ; Osada, Uémura & Uehara,1999 : 214, pl.109, figs.♂,♂,♂(Un),♀. (Oudomxay; Xam Neua)
Udara albocaerulea albocaerulea ; Onodera,2009b : 37. (Houaphan: Phu Phan)
Udara albocaerulea albocaerulea ; Nakamura & Wakahara,2012 : 51.
Udara albocaerulea albocaerulea ; Onodera,2022 : 75, pl.206, figs.♂,♂(Un),♀,♀(Un). (Xiang Khouang: Phou Samsoum; Phon Kham)

[ CAMBODIA ]
Udara albocaerulea albocaerulea ; Monastyrskii et al.,2011 : 130. (Phnom Samkos W.S.)
Udara albocaerulea albocaerulea ; Chartier & Kosterin,2022 : 120. (Pursat)

[ VIETNAM ]
Lycaenopsis albocaeruleus ; Metaye,1957 : 91. (no loc.)
Udara albocaerulea ; Monastyrskii et al.,2006 : 42. (Thua Thien Hue: A Luoi; Bach Ma)
Udara albocaerulea albocaerulea ; Miyazaki, Saito & Saito,[2007] : 53, figs.L-30,♂,♀. (Lam Dong: Dambri)
Udara albocaerulea albocaerulea ; Monastyrskii & Devyatkin,2015 : 51. (N / C)

[ THAILAND ]
Mae Hong Son : 5♂.

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Chiang Mai : 8♂ 1♀ (incl. photo).

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Nan : 4♂ (incl. photo by A.Giudici).

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[ LAOS ]
Sekong : 6♂.

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The butterfly is locally not rare in montane forests at low to high elevations (Alt. 450 - 1800m). Males are territorial on trees at hilltops and frequently come to the banks of streams and puddles to suck water. Further distributional research is needed.

Moore, F.,1879 : Descriptions of new Asiatic diurnal Lepidoptera.
Proc. zool. Soc. Lond. 1879(1):136-144.

Fruhstorfer, H.,1910 : Neue Cyaniris-Rassen und Ubersicht der bekannten Arten.
Stett. ent. Ztg. 71(2):282-305.

Fruhstorfer, H.,[1917] : Revision der Lycaenidengattung Lycaenopsis auf Grund morphologischer Vergleiche der Klammerorgane.
Arch. Naturgesch. (A)82(1):1-42, 20 figs.

♂, Chiang Mai, Thailand.	♂, Nan, Thailand. (photo by A.Giudici)
♂ (territorial behavior), Chiang Mai, Thailand.

1999.06.25 - 2023.03.31.