Dacalana irmae is a butterfly of the family Lycaenidaefirst described by Hisakazu Hayashi, Heinz G. Schroeder and Colin G. Treadaway in 1983.[1] It is endemic to the Philippines and found only on Sibuyan Island. The forewing length is 17.5–20mm.
Hayashi, Hisakazu; Schrőder, Heinz & Treadaway, Colin G. (1983). "Neue Arten und Unterarten der Gattungen Dacalana und Pratapa von den Philippinen (Insecta: Lepidoptera: Lycaenidae)". Senckenbergiana Biologica. 63 (1/2): 47-59.
Treadaway, C. G. (1995). "Checklist of the butterflies of the Philippine Islands (Lepidoptera: Rhopalocera)". Nachrichten des Entomologischen Vereins Apollo. Suppl. 14: 7-118.
Takanami, Yusuke & Seki, Yasuo (April 1, 2001). "Edition 12". A Synonymic List of Lycaenidae from the Philippines. Archived from the original on June 14, 2001 – via Internet Archive.
Treadaway, C. G. & Schrőder, Heinz (2012). "Revised checklist of the butterflies of the Philippine Islands (Lepidoptera: Rhopalocera)". Nachrichten des Entomologischen Vereins Apollo. Suppl. 20: 1-64.
