R. S.  Anderson and Gomez, L. D., ?A remarkable new Genus of weevil (Curculionidae; Curculioninae; Erirhinini) associated with flowers of Cyclanthaceae in Costa Rica and Panama.?, Revista Biologia Tropical, vol. 45, pp. 887-904, 1997.

R. S.  Anderson and Gomez, L. D., ?Systenotelus, a remarkable new genus of weevil (Coleoptera: Curculionidae) associated with Carludovica (Cyclanthaceae) in Costa Rica and Panamá.?, Revista de Biología Tropical, vol. 45, pp. 887-904b, 1997.