♂, 2014.11.23. Koh Kut, Trat, Thailand. (Holotype)		♀, Koh Kut, Trat, Thailand. (Paratype)
♂, Dong Nai, S. Vietnam. (Paratype)		♀, Dong Nai, S. Vietnam. (Paratype)
♂, Koh Kut, Trat, Thailand. (Paratype)		♂ genitalia, Koh Kut, Trat, Thailand. (Paratype)

ON : Neomyyrina ikarii Saito & Inayoshi, 2024 OD : Butterflies 94:8, figs.2(HT,♂), 2v(HT,♂Un), 3(PT,♀), 3v(PT,♀Un), 4([PT],♂), 4v([PT],♂Un), 5([PT],♀), 5v([PT],♀Un), 11a-f(♂genitalia), 15(♀genitalia) TL : Koh Kut, Trat, SE.Thailand. (RIEB) Distribution : SE.Thailand (Koh Kut), S.Vietnam.

Holotype ♂, 23.Nov.2014, Khlongchao WF., Koh Kut, Trat, SE.Thailand, E.Ikari leg. (RIEB, examined.)
Paratypes : 8♂ 4♀, Koh Kut, Trat, SE.Thailand. (RIEB ; in coll. E.Ikari, Y.Inayoshi, examined.) ; 5♂ 2♀, Trang Bom, Dong Nai, S.Vietnam. S.Inoué leg. (RIEB, examined.)

[ THAILAND ]
Trat (Koh Kut) : 9♂ 4♀ (Holotype and Paratypes), (2♂ genitalia dissected).

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[ VIETNAM ]
Dong Nai (Trang Bom) : 5♂ 2♀ (Paratypes), (1♂ 1♀ genitalia dissected).

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The butterfly is locally common in montane forests at low elevations (Alt. 10 - 50m) and often rest on the underside of leaves.
This taxon is very similar to Neomyrina hiemalis. However, males can be distinguished by their large size, blue area of the UpF does not extend to the submarginal area, and the difference in genitalia.
The South Vietnam specimens are from the 1960's. Now only Neomyrina hiemalis is found there. It may have been replaced by Neomyrina hiemalis and is probably extinct.
On Koh Chang, Trat, the island north of Koh Kut, a Neomyrina species was photographed by Koichi Yano in 2014. However, as there are no specimens available, it is unclear whether it is hiemalis or ikarii. Further distributional research is needed.

	Neomyrina hiemalis Male UpF. Neomyrina ikarii Male UpF.
The distribution map of Neomyrina hiemalis, monastyrskii and ikarii

Saito, K. & Inayoshi, Y.,2024 : Descriptions of four new species and two new subspecies of Lycaenidae from Thailand and Vietnam.
Butterflies 94:4-14.

♂, Koh Kut, Trat, Thailand.	♀, Koh Kut, Trat, Thailand.
♂, Koh Kut, Trat, Thailand.

Neomyrina sp.

♂, Koh Chang, Trat, Thailand. (photo by K.Yano)

2024.09.30.