Fiji Moth vs Purple Emperor

Side-by-side species comparison

Attribute Fiji Moth Purple Emperor
Scientific Name Heterallactis baibakoua Apatura iris
Order Lepidoptera Lepidoptera
Family Zygaenidae Nymphalidae
Size 25-35 mm wingspan 62-80 mm wingspan
Habitat Forests Woodlands
Diet Nectar Feeders Carrion Feeders
Regions Oceania (Fiji) Europe, temperate Asia, Japan
Conservation Near Threatened Least Concern

Fiji Moth

A day-flying forester moth endemic to Fiji, with metallic blue-black wings. It is found in native forest where its larvae feed on native vines. The bright metallic colouration suggests it may be chemically defended.

💡

Did You Know?

The metallic blue sheen of this moth's wings is produced by nanoscale structures rather than pigments, making the colour unfadeable even in museum specimens.

Purple Emperor

A majestic woodland butterfly whose males display an intense iridescent purple sheen visible only at certain angles. It never visits flowers, preferring carrion, dung, and tree sap.

💡

Did You Know?

Enthusiasts bait it down from the canopy using rotting shrimp, dirty nappies, or Stilton cheese.