About Poecilasthena subpurpureata (Walker)
Poecilasthena subpurpureata is a moth species belonging to the family Geometridae. It was first described by Francis Walker in 1863, and it is endemic to New Zealand. Astheniodes polycymaria is a synonym of this species; the two have almost identical male genitalia. George Hampson recorded the holotype of the synonym as originating from India. Dayong Xue and Malcolm J. Scoble noted in their paper that this would create a very unusual distribution pattern for the species. Louis Beethoven Prout correctly identified the Indian holotype location as an error in his 1926 paper.