See text The archdukes are a genus, Lexias, of tropical forest-dwelling butterflies that are common throughout Southeast Asia and Australasia.

Two very similar and coexisting genera are Tanaecia (the viscounts and earls) and Euthalia (the barons and counts), the latter previously including some Lexias species.

The females' dorsal wing surfaces are a drab brown, with small yellowish white spots.

Because both types of food are common in this habitat, the Southeast Asian archdukes have not become specialised in feeding on one or the other, as is usual in butterflies.

Archdukes are found primarily in virgin forests and are attracted to sunlit areas such as clearings and paths.