♂, Chiang Mai, Thailand.		♀ (wsf), Phitsanulok, Thailand. (photo by T.Laola)
♂, Chiang Mai, Thailand.		♀, Chiang Mai, Thailand.
♂, Chiang Mai, Thailand.		♂, Chiang Mai, Thailand.
♂, Mae Hong Son, Thailand.		♂ (wsf), Phetchabun, Thailand.
♂, Chiang Mai, Thailand.		♂, Tak, Thailand.
♂, Xieng Khouang, Laos. (photo by H.Onodera)		♂, Luang Namtha, Laos. (photo by H.Onodera)

ON : Neptis nashona aagaardi Riley, 1932 OD : J. nat. Hist. Soc. Siam Suppl. 8(4):249-250, pl.22, fig.6,♂. TL : Doi Suthep, Chiengmai [Chiang Mai], N.Siam. (♂, NHML) Distribution : Thailand, Laos, C.Vietnam. ● ssp.aagaardi ● ssp.chapa ● ssp.kishii ● ssp.tamamitsui

♂ Holotype, Doi Suthep, Chiengmai [Chiang Mai], N.Siam. 1931.Feb. C.J.Aagaard. (NHML)

[ THAILAND ]
Neptis nashona aagaardi ; Godfrey,1932b : 324. (Chiang Mai: Doi Suthep)
Neptis nashona aagaardi ; Eliot,1969 : 96. (N.Siam)
Neptis nashona aagaardi ; Pinratana,1979 : 50, figs.N85,♂,♂(Un). (Chiang Mai; Chaiyaphum; Loei)
Neptis nashona aagaardi ; Pinratana & Eliot,1996 : 51, pl.31, figs.79,♂,♂(Un). (Chiang Mai; Chaiyaphum; Loei)
Neptis nashona aagaardi ; Ek-Amnuay,[2007] : 392, pl.170, fig.N81,♀[♂]. (Chiang Mai; 'Doi Phu Kha')
Neptis nashona aagaardi ; Ek-Amnuay,2012 : 406, pl.176, figs.N257,♀[♂],♀[♂](Un). (Chiang Mai; 'Doi Phu Kha')
Neptis nashona aagaardi ; S.Sophonviwatkul, C.Sunthornwiphat & T.Laola,2015- : Butterflies of Thailand, figs., Early Stages. (Kamphaeng Phet; Phetchabun) (accessed: 2022.07.10)
Neptis nashona aagaardi ; Kimura et al.,2016 : 81, figs.♂,♂(Un),♂,♂(Un),♀,♀(Un). (Doi Pha Hom Pok; Doi Suthep)

[ VIETNAM ]
Neptis nashona chapa ; Monastyrskii & Devyatkin,2015 : 37. (C: to Ha Tinh) (in part)
Neptis nashona aagaardi ; Monastyrskii & Devyatkin,2015 : 37. (C: Thua Thien Hue) (in part)
Neptis nashona aagaardi ; Monastyrskii,2019 : 4(2):76-77, pl.49, fig.2c♂. (C: Vu Quang; Nam Dong; Huong Thuy) (in part)

[ THAILAND ]
Mae Hong Son : 1♂.

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Chiang Mai : 16♂ 1♀ (incl. photo).

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Tak : 1♂.

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Phitsanulok : 1♀ (photo by T.Laola).

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Phetchabun : 2♂ (incl. photo).

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

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Oudomxai : 1♂ (photo by H.Onodera).

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Xieng Khouang : 2♂ (incl. photo by H.Onodera).

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The butterfly is locally common in montane forest at moderate to high elevations (Alt.800m - 1600m) and is frequently found on hilltops or ridges. Males are territorial on shrubs or trees.
Ek-Amnuay,[2007],2012 recorded it from 'Doi Phu Kha, Nan', however I have never seen any specimens from there. Further distributional research is needed. The populations from Laos show a tendency for the white markings on the upperside to be sullied with black scales. Similar individuals are also occasionally found in N.Thailand. It is considered a variation.

Riley, N.D.,1932 : Descriptions of New Siamese Rhopalocera.
J. nat. Hist. Soc. Siam Suppl. 8(4):249-254, pl.22.

♂, Chiang Mai, Thailand.	♂ (territorial behavior), Chiang Mai, Thailand.
♂ (wsf), Chiang Mai, Thailand.	♂, Chiang Mai, Thailand.
♂ (wsf), Phetchabun, Thailand.	♂ (wsf), Phetchabun, Thailand.

2006.02.20 - 2022.07.31.