Magnivitellinum simplex Kloss, 1966

Material deposited: MLP, MACN-Pa 612 (new voucher material).

Hosts: Astyanax bimaculatus (type host, Brazil), Astyanax sp., A. eigenmanniorum, A. fasciatus, Oligosarcus jenynsi, Sorubim lima *.

Life cycle: IH1 Biomphalaria tenagophila (d’Orbigny), IH2 Aedes aegypti (Linnaeus) (experimental host).

Localities: Mogi-Guaçu River (Emas, Pirassununga) Estado São Paulo State, Brazil (type locality); Tres Palmeras, Salta Province; Colastiné River** (tributary of the Paraná River), Santa Fe Province; Doña Flora Stream (tributary of La Plata River), Miguelín Stream (Ensenada), Cantera (quarry) Aprilito, Chascomús Lagoon (Chascomús) and La Plata River, Buenos Aires Province.

Site of infection: Intestine.

References: Lunaschi (1989b), Arredondo (2013),

Davies (2014).

Remarks: New host and locality record.