♂, 2024.02.06. Chiang Mai, Thailand. Holotype (photo by K.Saito)		♀, 2024.01.21. Chiang Mai, Thailand. Paratype
♂, 2023.08.06. Chiang Mai, Thailand. Paratype (photo by K.Saito)		♂, 2023.12.28. Chiang Mai, Thailand. Paratype
♂, 2024.01.19. Chiang Mai, Thailand. Paratype		♂, 2024.02.03. Chiang Mai, Thailand. Paratype

ON : Allotinus subviolaceus lanna Saito & Inayoshi, 2026 OD : Butterflies 98: 20, 23, figs.1(HT,♂), 1v(HT,♂Un), 2(PT,♂), 2v(PT,♂Un), 3(PT,♂), 3v(PT,♂Un), 4(PT,♀), 4v(PT,♀Un), 6:a–e(♂genitalia). TL : Mae On Dist., Chiang Mai, N.Thailand. (RIEB) Distribution : N.Thailand (Chiang Mai). ● ssp.lanna ● ssp.subviolaceus

Holotype ♂, 6.Feb.2024, Mae On Dist., Chiang Mai, N.Thailand. Y.Inayoshi leg. (RIEB)
Paratypes : 15 ♂ 1♀, Chiang Mai (Mae Chaem Dist.; Mae On Dist.), N.Thailand. (RIEB ; in coll. YI ; KS)

[ THAILAND ]
Allotinus subviolaceus subviolaceus: Inayoshi,2023–2025 : Butterflies in Indo-China, figs.♂,♂(Un). (Chiang Mai) (partim) (28.Feb.2025 last updated ; 31.Jan.2026 changed.)

[ THAILAND ]
Chiang Mai : 19♂ 1♀ (incl. Holotype & Paratypes), (3♂ genitalia dissected).

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This taxon was recently found in several districts of Chiang Mai Province, N. Thailand. It was first discovered by Kotaro Saito on 6 August 2023.
The butterfly is locally not uncommon in forests at moderate elevations (750–870 m a.s.l.), but is quite localised. Males are territorial on trees about 2–4 m high at hilltops and fly in circles for long hours in their territory from 15:30–16:40. Further distributional research is needed.

Saito, K. & Inayoshi, Y, 2026. Description of two new species and two new subspecies of Lycaenidae from Thailand.
Butterflies, 98: 20–32.

♂ (territorial behaviour), Chiang Mai, Thailand.
♂ (territorial behaviour), Chiang Mai, Thailand.	♂ (territorial behaviour), Chiang Mai, Thailand.
♂ (territorial behaviour), Chiang Mai, Thailand.

2026.03.31.