Valerian psyllid

Trioza centranthi · Order: Hemiptera · Family: Triozidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Valerian psyllid
Photo: Gilles San Martin, CC BY-SA

How to recognize it

It creates distinctive galls on its host plants, which help identify its presence.

Source: Wikipedia

Size

It is a small hemipteran insect that feeds by sucking plant sap.

Source: Wikipedia

Where it lives

The species was first described by the French entomologist Jean Nicolas Vallot in 1829 and is found throughout Europe.

Source: Wikipedia

What it eats

It feeds on the sap of Centranthus and Valerianella species, causing gall formation on leaves and flowers.

Source: Wikipedia

More photos

Questions people ask

What plants does the valerian psyllid affect?

It feeds on Centranthus and Valerianella species, producing galls on their leaves and flowers.

Source: Wikipedia

Where is the valerian psyllid found?

It occurs across Europe, from Great Britain and France eastward to Ukraine.

Source: Wikipedia

Same family (Triozidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Trioza_centranthi

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

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