Bright Oak-blue
Common NameBright Oak-blue
Scientific NameArhopala fulla
FamilyLycaenidae
SubfamilyTheclinae
Wingspan (mm)40
Primary Colorsbrown, purple, blue
HabitatTropical and subtropical forests, forest edges, woodlands
Geographic RangeSoutheast Asia (India, Myanmar, Thailand, Malaysia, Singapore, Indonesia, Philippines)
Host PlantsLithocarpus, Quercus
Flight PeriodYear-round
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis from egg to larva, pupa, and adult. Larvae are often myrmecophilous, associating with ants, and feed on oak species.
Identification TipsKey identification features include the purplish-brown underside with a distinct pattern of dark, pale-ringed spots and iridescent blue-green scaling near the hindwing base. The two prominent tails on the hindwings are also a strong indicator.
Description
This medium-sized butterfly has a purplish-brown underside adorned with darker spots outlined in pale blue, and striking iridescent blue-green scaling near the hindwing base. Its hindwings feature two prominent tails, while males display a brilliant iridescent blue on their uppersides.
