This species was described by Shannon based on a female specimen collected in the Department Piura in Peru. It is part of the Allograpta obliqua species group.
Shannon did not explicitly state the etymology of the specific epithet, but it seems to be derived from the Department where the type specimen was collected, Piura.
Taxonomy
Shannon distinguished A. piurana from A. hortensisPhilippi by a yellow spot on the metapleura, darkapicalmargin of the scutellum, oblique pair of bands on the second tergite, and yellow markings of remaining tergites more parallel to each other.