Blanchardaphis poikila syn. n. to B. capitophoroides and Blanchardaphis syn. n. to Lambersius (Hemiptera, Aphididae, Aphidinae, Macrosiphini, Uroleucon).

Blanchardaphis was erected for two Argentinian species of aphids very similar to Uroleucon, but distinguished by several characters. Here, we examined morphology and DNA sequences of Blanchardaphis specimens from Argentina and Chile. We further conducted a phylogenetic analysis to determine the relationship of Blanchardaphis to Uroleucon.