Phytocoris populi is a species of plant bugs belonging to the family Miridae, subfamily Mirinae.

[1] It is widespread in Europe but absent from Albania, Andorra, Azores, Canary Islands, Cyprus, Faroe Islands and Iceland.

Both the nymphs and the imagines sit during the day predominantly in cracks of the bark on the trunk of the host plants.

They feed predominantly as predators on aphids, psyllids, Psocoptera and other small invertebrates that live on the trunk of the plants.

The adult bugs can be observed from July to September.