♂ (ds), Chiang Mai, Thailand.		♀ (ds), Chiang Mai, Thailand.
♀ (dsf), 1994.02.26. Omkoi, Chiang Mai, Thailand.		♀ (bred, ds), Nakhon Nayok, Thailand. (photo by Sophonviwatkul)
♂, Xam Neua, Laos. (photo by K.Saito)		♀, Sekong, Laos.
♂, 2003.12.28. Dambri, Bao Loc, Vietnam. Tajuria sekii Holotype (photo by K.Saito)		♀, 2003.09.18. Dambri, Bao Loc, Vietnam. Tajuria sekii Paratype (photo by K.Saito)
♂ genitalia, Chiang Mai, Thailand.

ON : Iolaus ister Hewitson, 1865 OD : Ill. diurn. Lep. Lycaenidae 1(2):43-44, pl.19, figs.15,♂(Un) nec '♀', 16,♂ nec '♀'. TL : 'India' [? "Moulmein" Mawlamyine, Myanmar]. (NHML) Distribution : Assam, Myanmar, Thailand, Laos, Vietnam, S,Yunnan. ● ssp.ister ● ssp.tussius

Tajuria sekii Saito,2005 : Gekkan-Mushi (408):19-22, figs.1(HT,♂), 2(PT,♀), 7(HT,♂Un), 8(PT,♀Un), 14(♂ genitalia). TL. Dambri, Bao Loc, S.Vietnam. (in coll. Saito)
Tajuria sekii sisyphus Ge & Jiang, 2021 : Biodivers. Data J. 9:4-7, figs.3(HT,♂), 4(♂,genitalia), 5(PT,♀). TL. Mengla, Yunnan, China. (BFU)

ister ; Type ♂, 'India' ; 'Moulmain' [Mawlamyine, Myanmar], clerk. (NHML, photo examined.)
sekii ;
Holotype ♂, 28.Dec.2003. Dambri (ca850m), Bao Loc, Vietnam. K.Saito leg. (KS)
Paratypes ; 2♂ 6♀, same locality as Holotype. (in coll. K.Saito ; Y.Seki ; S.Miyazaki)
sisyphus ;
Holotype ♂, 24.Apr.2021. Menglun (800m), Mengla, Yunnan, China. (BFU)
Paratypes 4♀, same data as holotype. (BFU)

[ THAILAND ]
Tajuria sekii ; Inayoshi,2006 - 2022 : Butterflies in Indo-China, figs.♀,♀(Un). (Chiang Mai: Omkoi) (31.Oct.2022 last updated ; 31.Oct.2024 changed.)
Tajuria sekii ; Ek-Amnuay,[2007] : 688, pl.314, figs.L360,♀,♀(Un). (Chiang Mai)
Tajuria sekii ; Ek-Amnuay,2012 : 730, pl.334, figs.L383,♂(Laos),♀,♀(Un). (Chiang Mai)
Tajuria ister ister ; Kimura et al.,2014 : 116, figs.♂,♂(Un),♂,♂(Un). (Tha Ton; Doi Inthanon)
Tajuria sekii ; Kimura et al.,2014 : 117. (by literature)
Tajuria ister ister ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2023- : Butterflies of Thailand, fig., Early Stages. (Nakhon Nayok) (accessed: 2024.02.19)

[ LAOS ]
Tajuria ister ister ; Osada, Uémura & Uehara,1999 : 218, pl.125, figs.♂,♀. (Xam Neua; Thakhek)
Tajuria sekii ; Inayoshi,2006 - 2022 : Butterflies in Indo-China, figs.♂,♂(Un). (Xan Neua) (31.Oct.2022 last updated ; 31.Oct.2024 changed.)
Tajuria ister ister ; Nakamura & Wakahara,2012 : 55.
Tajuria sekii ; Nakamura & Wakahara,2012 : 55.

[ VIETNAM ]
Tajuria ister ister ; Luong et al.,2004 : 11, 81, figs.♀,♀(Un). (Cuc Phuong)
Tajuria ister ; Monastyrskii et al.,2006 : 44. (Thua Thien Hue: Nam Dong; Phong Dien)
Tajuria sekii ; Miyazaki, Saito & Saito,2006d : 65, figs.L-125,♂,♀. (Lam Dong: Dambri ; Gung Re)
Tajuria sekii ; Inayoshi,2006 - 2022 : Butterflies in Indo-China, figs.♂(HT),♂(HT,Un),♀(PT),♀(PT,Un). (Lam Dong: Dambri) (31.Oct.2022 last updated ; 31.Oct.2024 changed.)
Tajuria sekii ; Monastyrskii & Devyatkin,2015 : 66, pl.15, figs.60a♂,60b♂(Un). (C: Lam Dong)
Tajuria ister ister ; Monastyrskii & Devyatkin,2015 : 67. (N: Ninh Binh / C: Thua Thien Hue)

[ THAILAND ]
Chiang Mai : 1♂ 2♀ (1♂ genitalia dissected).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nakhon Nayok : 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ LAOS ]
Houaphan : Xam Neua. 1♂, LC (KS).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sekong : 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ VIETNAM ]
Lam Dong : 4♂ 5♀ (incl.Holotype & Paratype), (1♂ genitalia dissected).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is uncommon in montane forests at moderate elevations (Alt. 700 - 1400m). Males are territorial on trees at hilltops.
The type locality of this species is problematic. The original description by Hewitson (1865) gave it as "India", but Corbet's revision (1940: 113) gave it as "Burma, Moulmein" [Mawlamyine, Myanmar]. I wondered why Corbet thought it was Moulmein, but a check of the NHML type specimen shows it labelled "E. Indies" and "Moulmein Clerk, 43.43". Corbet clearly seems to have followed this "Moulmein Clerk" label. The name of "Clerk" is the person who purchased the material from Hewitson. Similarly, it is quite possible that 'India' at the time covered British India, including Burma, and that the type locality was Moulmein, Myanmar. (R.Vane-Wright, pers. comm.) Furthermore, subsequent studies suggest that Tajuria sekii is synonymous with this taxon.

Hewitson, W.C.,1863-1878; Illustrations of diurnal Lepidoptera. Part I. Lycaenidae.
London, John Van Voorst.
(1):1-37 [sic], pls.1-16. (6.Jul.1863) ; (2):37-76, pls.17-30. (24.Jun.1865) ; (3):77-114, pls.31-46. (1.Apr.1867) ; (4):115-136, 14a-14h, supplementary pp.1-16, pls.47-54, 3a-3c, supplementary pls.1-5. (30.Apr.1869) ; (5):137-151 [sic], pls.55-59, supplementary pl.6. (10.Feb.1873) ; (6):151-185 [sic], pls.60-73. (1.Dec.1874) ; (7):185-209 [sic], pls.74-83 (Jan.1877) ; (8):209-228, supplementary pp. 17-35 [sic], 35-47, pls.84-85, 88-92, supplementary pls.1a-1b, 3a-3b, 4a, 5a-5b, 7-8. (Nov.1878) [pls. 86-87 were never published]

Corbet, A.S.,1940 : A revision of the Malayan species of Tajuria Mre. (Lepidoptera: Lycaenidae)
Trans. R. ent. Soc. Lond. 90(5):107-120, 27 figs, pl.1.

Saito, K.,2005 : Description of aq new species of Tajuria Moore,1881 (Lycaenidae) from Vietnam
Gekkan-Mushi 408:19-22.

Ge, S., Jiang, Z., Ren, L. & Hu, S.,2021 : New records of two lycaenid butterfly species (Lepidoptera: Lycaenidae) in China, with the description of a new subspecies
Biodivers. Data J. 9:1-8.

Huang, H.,2022 : Taxonomy and morphology of Chinese butterflies 2
Lycaenidae: Theclinae: Iolaini: Genera Tajuraia Moore, 1881, Pratapa Moore, 1881, Dacalana Moore, 1884, Manesa de Nicéville, 1890, Creon de Nicéville, 1896 and Bullis de Nicéville, 1897 (Lepidoptera: Lycaenidae)
Atalanta 53(1/2):136-199.

♂ (territorial behavior), ChiangMai, Thailand.

2006.02.06 - 2024.10.31.