Owl Butterfly
Common NameOwl Butterfly
Scientific NameCaligo eurilochus
FamilyNymphalidae
SubfamilyBrassolinae
Wingspan (mm)140
Wing Patternsolid
Primary Colorsbrown, black, blue, purple
HabitatTropical and subtropical rainforests, forest edges, secondary growth
Geographic RangeMexico, Central America, and South America (e.g., Brazil, Peru, Ecuador, Colombia)
Host PlantsMusa (banana), Heliconia, Calathea
Flight PeriodYear-round (multiple broods in tropical climates)
Flight Stylegliding
Conservation Statusleast-concern
Lifecycle NotesLarvae are large, often green or brown with horn-like projections on the head and a forked tail. Pupae are cryptic, resembling dead leaves or twigs, hanging head down.
Identification TipsThe most distinctive feature is the large, circular eyespot on the underside of each hindwing, strongly resembling an owl's eye. They are also known for their crepuscular flight, being most active at dusk and dawn.
Description
A very large, robust butterfly known for its striking, owl-like eyespots on the ventral side of its hindwings, which serve as a defense mechanism. The dorsal side typically features dark brown wings with broad iridescent blue or purple bands.
