Dacalana mio is a butterfly of the family Lycaenidae first described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983."Dacalana mio H.Hayashi & Schroeder & Treadaway, 1982" Forewing length: 16–18 mm. It is rare species, endemic to the Philippines and found only on the islands of Mindanao and Leyte.

The specific name is dedicated to the eldest daughter of the first author. References

, 1983: Neue Arten und Unterarten der Gattungen Dacalana und Pratapa von den Philippinen (Insecta: Lepidoptera: Lycaenidae). Senckenbergiana Biologica. 63 (1/2): 47–59. , 1995: Checklist of the butterflies of the Philippine Islands (Lepidoptera: Rhopalocera). Nachrichten des Entomologischen Vereins Apollo, Suppl. 14: 7–118.

, 2012: Revised checklist of the butterflies of the Philippine Islands (Lepidoptera: Rhopalocera). Nachrichten des Entomologischen Vereins Apollo, Suppl. 20: 1-64.