Distinguishing the Australian Lesser Wanderer (Danaus petilia) from the Afro-Asian Plain Tiger (Danaus chrysippus) is possible by noting that in Danaus petilia:
1. the cell along the forewing costa is darker (on both upper and under surfaces),
2. the 3 narrow white stripes, along the forewing costa at 2/3rds, are shorter (on both upper and under surfaces), and
3. the double row of white spots along the hindwing underside margin are wider.
Oxley Creek Common, Brisbane, Queensland, Australia, 6 November 2022