The Wing Atlas
Large Fourline Blue

Large Fourline Blue

Common NameLarge Fourline Blue
Scientific NameNacaduba pactolus
FamilyLycaenidae
SubfamilyPolyommatinae
Wingspan (mm)30
Primary Colorsbrown, white, black, orange
HabitatTropical and subtropical forests, open woodlands, gardens
Geographic RangeSoutheast Asia, India, Australia
Host PlantsAcacia, Albizia, Cajanus, Saraca
Flight PeriodYear-round in tropical regions
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis. Larvae are typically slug-like and flattened, often found feeding on the leaves and flowers of host plants, and may have an association with ants.
Identification TipsLook for the distinctive pattern of white wavy lines on a brown background on the underside, particularly the prominent black and orange eyespot on the hindwing. The upperside, not visible here, is typically iridescent blue in males.

Description

A small butterfly with a light brown underside featuring intricate white wavy lines across both forewings and hindwings, and a prominent black eyespot ringed with orange on the hindwing.

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