♂ (dsf), Chiang Mai, Thailand.		♀ (dsf), Chiang Mai, Thailand.
♂ (dsf), Lampang, Thailand.		♀, Ha Giang, Vietnam. (photo by K.Saito)
♂, Ha Giang, Vietnam. (photo by K.Saito)		♀, Ha Giang, Vietnam. (photo by K.Saito)
♂, Chiang Mai, Thailand.		♂ (dsf), Nan, Thailand.
♂ (dsf), Tak, Thailand.		♂ (dsf), Chiang Mai (Omkoi dist.), Thailand.
♂ (dsf), Phetchabun, Thailand.		♂ (dsf), Chaiyaphum, Thailand.

ON : Neptis sankara guiltoides Tytler, 1940 OD : J. Bombay nat. Hist. Soc. 42:117. TL : Maymyo, N.Shan States ; Karen Hills, [Myanmar]. (NHML) Distribution : Myanmar, Thailand, Laos, N. & C.Vietnam, NW.Yunnan. ● ssp.guiltoides ● ssp.sugimotoi

[ THAILAND ]
Neptis sankara quilta ; Godfrey,1927 : 123. (N)
Neptis sankara quilta ; Godfrey,1930 : 282. (Chiang Mai)
Neptis sankara guiltoides ; Eliot,1969 : 91. (N.Siam)
Neptis sankara guiltoides ; Pinratana,1979 : 49, figs.N82,♂,♂(Un). (Chiang Mai)
Neptis sankara guiltoides ; Pinratana & Eliot,1996 : 51, pl.30, figs.76,♂,♂(Un). (Chiang Mai; Chaiyaphum)
Neptis sankara guiltoides ; Ek-Amnuay,[2007] : 392, pl.170, figs.N78,♀,♀(Un). (in part)
Neptis sankara guiltoides ; Ek-Amnuay,2012 : 404, pl.175, figs.N254,♀,♀(Un). (Umphang)
Neptis sankara guiltoides ; Kimura et al.,2016 : 80, figs.♂,♂(Un),♂,♂(Un). (Doi Pha Hom Pok; Doi Suthep; Doi Inthanon; Phu Khiewo)
Neptis sankara guiltoides ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2024- : Butterflies of Thailand, figs. (Kamphaeng Phet; Phetchabun) (accessed: 2024.05.12)

[ LAOS ]
Neptis sankara f. quitta ; Dubois & Vitalis,1924 : 40. (Xieng-Khouang; Pang-Bo)
Neptis sankara guiltoides ; Motono & Negishi,1989 : 57, pl.58, figs.1,♂,2,♂(Un). (Phatong)
Neptis sankara guiltoides ; Osada, Uémura & Uehara,1999 : 206, pl.55, figs.♂,♂(Un),♀. (Lak Sao; Oudomxay)
Neptis sankara guiltoides ; Nakamura & Wakahara,2012 : 45.
Neptis sankara guiltoides ; Onodera,2022 : 36, pl.113, figs.♂,♂(Un). (Xiengkhouang: Muang Kham)

[ VIETNAM ]
Neptis sankara ; Monastyrskii et al.,2006 : 41. (Thua Thien Hue: Huong Thuy)
Neptis sankara guiltoides ; Monastyrskii & Devyatkin,2015 : 37. (N / C: Ha Giang, Lao Cai to Gia Lai)
Neptis sankara guiltoides ; Monastyrskii,2019 : 4(2):72-73, pl.46, figs.2a♂,2b♂(Un). (N: Van Ban; Na Hang / C: Pu Mat; Huong Thuy; Bach Ma)

[ THAILAND ]
Chiang Rai : 3♂ (incl. photo).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Chiang Mai : 12♂ 1♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Lampang : 2♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Nan : 2♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Tak : 5♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Phetchabun : 2♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Chaiyaphum : 3♂.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ LAOS ]
Luang Phabang : 1♂ (photo by H.Onodera).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Xieng Khouang : 1♂ (photo by H.Onodera).

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[ VIETNAM ]
Ha Giang : 2♂ 2♀.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The butterfly is not rare in montane forests at moderate to high elevations (Alt. 500 - 1800m). Males are territorial on trees at hilltops.
The population in W.Thailand tends to have whiter and larger white markings on the UpF, especially subapical white spots. Further taxonomic study is needed.

Tytler, H.,1940 : Notes on Some New and Interesting Butterflies chiefly from Burma. Part.2.
J. Bombay nat. Hist. Soc. 42:109-123.

Eliot, J.N.,1969 : An Analysis of the Eurasian and Australian Neptini (Lepidoptera: Nymphalidae).
Bull. Br. Mus. nat. Hist. (Ent.) Supple.15. London.

♂, Chiang Mai, Thailand.	♂ (territorial behavior), Chiang Rai, Thailand.
♂, Tak, Thailand.	♂, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.	♂, Phetchabun, Thailand.

2006.02.20 - 2024.05.31.