Trioza centranthi

Alternative names
Valerian Psyllid

Adult length 2.5 to 3.0 mm. Whilst the adults can be very difficult to identify without detailed examination, the reddish larval leaf roll galls on Valerian are quite distinctive.

Identification difficulty

Adult Gall


Wherever Valerian, the larval foodplant occurs.

When to see it

Adult all year.

Life History

Nymphs form distinctive leaf-roll galls on Red Valerian (Centranthus ruber), but also feed on Valerianella. Adults overwinter on evergreens.

UK Status

T. centranthi is a historically rare and scattered species that may be increasing in recent years, primarily found near the south coast of England but possibly moving further north.

VC55 Status

Rare or under recorded in Leicestershire and Rutland. The Broughton Astley record of 25th October 2016 is believed to be the first for VC55, although the species appears to be extending its range and it may become more common in our area.

be our species champion

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map