Uroleucon pseudambrosiae

Uroleucon pseudambrosiae is a species of aphid in the family Aphididae.

It feeds on wild lettuce (Lactuca spp.), pilewort (Erechtites hieracifolia), dandelion (Taraxacum), and Sonchus asper. It is found in North America. It can serve as a vector for Watermelon mosaic virus.