They are members of the alea subgroup.
Half a dozen similar species occur in P.Mlaysia.
Most of them do not occur past pensinsular Thailand.
Two likely species in central Thailand are A. selta & milleri.
The male selta is stated to have rounded FW but this is difficult to judge. A. milleri is indigo blueon the upperside. A. selta male have the upperside FW border expanded at the apex.
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