Authors: Durante, MPM Ortego, J

Citation: Mpm. Durante et J. Ortego, Two new species of Aphis L-(Hemiptera : Aphididae) from Argentina living on Asteraceae, P ENT S WAS, 101(2), 1999, pp. 428-437

Authors: Nafria, JMN Ortego, J Durante, MPM

Citation: Jmn. Nafria et al., Three new species of Aphis (Hemiptera : Aphididae) living on Mulinum (Umbelliferae) in South America, CAN ENTOMOL, 131(3), 1999, pp. 283-292