About Amyna axis Guenée, 1852
Amyna axis, commonly known as the oriental eight-spot, is a moth species that belongs to the family Noctuidae. This species was first formally described by Achille Guenée in 1852. Amyna axis is distributed across Africa, temperate Asia, Australia, and the Cook Islands. In 2015, the population of moths previously classified as Amyna axis in the New World was identified as a separate, distinct species called Amyna stricta. Each year, Amyna axis moths migrate northward during late summer and fall. The larvae of this moth feed on plant species from many genera, including Amaranthus, Croton, Celosia, Digera, Helianthus, Chenopodium, Spinacia, Ipomoea, Ricinus, Arachis, Crotalaria, Medicago, Phaseolus, Hibiscus, Cardiospermum, Solanum, Corchorus, and Parasponia. Amyna axis is an irregular minor pest of mung beans (Vigna radiata), black-eyed peas (Vigna unguiculata), lucerne (Medicago sativa), and soy beans (Glycine max). The total population of this species may be underreported, because its caterpillars closely resemble the caterpillars of Chrysoieixis species.
