Falcate Oak Blue
Common NameFalcate Oak Blue
Scientific NameArhopala falcate
FamilyLycaenidae
SubfamilyTheclinae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsbrown, grey, blue
HabitatTropical forests, forest edges, woodlands
Geographic RangeSoutheast Asia (Thailand, Malaysia, Singapore, Indonesia)
Host PlantsQuercus (oak) species, various forest trees
Flight PeriodYear-round
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesLarvae are flattened and slug-like, often exhibiting myrmecophilous relationships with ants.
Identification TipsKey features include the distinctive falcate (sickle-shaped) forewing apex, the mottled brown underside pattern, and the two short tails on the hindwing. The iridescent blue upperside is also characteristic.
Description
A medium-sized butterfly with a cryptic, mottled brown underside resembling a dry leaf, featuring a falcate forewing and two short tails on the hindwing. The upperside is typically iridescent blue.
