It is here considered to belong to the somewhat controversial type genus of its subfamily Erechthiinae, though even fairly recently some authors have proposed to retain other genera such as Decadarchis separate from Erechthias.

Its original distribution is probably undeterminable; it shows some traits of a supertramp species, but has likely been assisted to spread across its present range by human transport of its food plants.

In the male genitals, the clasper's harpe is broad and stubby, with a large swelling covered in bristles arising from the center of the costa; the outer edge of the cucullus is toothed.

The front part of the anellus is cup shaped, and the aedeagus is long and slim, with an equally elongated and slender cornutus.

Possible food plants seem to include most core eudicots, as the larvae have been recorded from across that clade: Known food plants are sea hibiscus (Hibiscus tiliaceus), lonomea (Sapindus oahuensis), saman (Albizia saman) and coffee trees (Coffea); the last two are not native to the Pacific region, testifying to the species' adaptability.