Lygus wagneri is a species of plant bug belonging to the family Miridae, subfamily Mirinae.

[2] These bugs have a golden gray to olive brown coloration, with small reddish areas.

[3] This species is extremely similar to Lygus pratensis, although on average it is slightly smaller, with a shorter membrane.

[2] It has an incomplete metamorphosis, the transition from newly hatched larvae to the sexually mature insects gradually goes through several stages.

It is a polyphagous species, mainly feeding on nectar of Tanacetum vulgare and on juices of Asteraceae, Urtica dioica, Rumex obtusifolius, Hieracium and Hypericum.