Shining Oak-blue
Common NameShining Oak-blue
Scientific NameArhopala atosia
FamilyLycaenidae
SubfamilyTheclinae
Wingspan (mm)40
Wing Patterniridescent
Primary Colorsblue, brown
HabitatLowland forests, forest edges, parks, and gardens
Geographic RangeSoutheast Asia (e.g., Peninsular Malaysia, Singapore, Thailand, Sumatra, Borneo, Philippines)
Host PlantsShorea spp., Lithocarpus spp., Castanopsis spp.
Flight PeriodYear-round (multiple broods)
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesThe larvae are typically slug-shaped and green, feeding on young leaves of host plants. Like many Lycaenidae, they may have an association with ants.
Identification TipsLook for the vibrant iridescent blue upperside with distinct broad dark brown margins. The underside, if seen, is typically plain brown with faint markings, lacking prominent spots or tails often seen in other Arhopala species.
Description
This small butterfly exhibits striking iridescent electric blue uppersides on its wings, sharply contrasted by wide, dark chocolate brown borders. Its body is also dark brown.
