“…Five of its species have an exclusively Nearctic distribution: Rhopalosiphum arundinariae (Tissot), Rhopalosiphum cerasifoliae (Fitch), Rhopalosiphum enigmae Hottes & Frison, Rhopalosiphum laconae Taber, Rhopalosiphum nigrum Richards, and Rhopalosiphum padiformis Richards; and another four Nearctic species have been introduced in other parts of the world: Rhopalosiphum parvae Hottes & Frison and Rhopalosiphum rufulum Richards in Europe, Rhopalosiphum musae Schouteden has been recorded in areas of Europe, Central Asia, Africa and Australia, and Rhopalosiphum oxyacanthae (Schrank) is known in Central- and South-America, Europe, Asia and Australia. To date, only four species, linked mainly to crops, have been recorded in Central American countries: Rhopalosiphum maidis (throughout Central America), Rhopalosiphum nymphaeae in Panama, Rhopalosiphum padi in Costa Rica and Panama, and Rhopalosiphum rufiabdominale in Honduras, Costa Rica and Panama (Evans and Halbert 2007; Quirós et al 2009; Villalobos Muller et al 2010); Rhopalosiphum oxyacanthae is also known in Central America, without country (Blackman and Eastop 2006). …”