Neomyzus circumflexus, the crescent-marked lily aphid or mottled arum aphid, also known as Aulacorthum circumflexum, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. It is also known to transmit plant viruses.
Normally host in Adiantum, Calla, Cineraria, Cyclamen, Fuchsia, Zantedeschia, Viola tricolor, and Physalis peruviana.
It is known to be a major insect pest on species of Asparagus, Begonia, and Fuchsia.