Trioza centranthi
This record describes Trioza centranthi (species). Recorded family: Triozidae. Recorded order: Hemiptera.
Identification and Appearance

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. Wherever Valerian, the larval foodplant occurs. Nymphs form distinctive leaf-roll galls on Red Valerian ( Centranthus ruber) , but also feed on Valerianella . Adults overwinter on evergreens. 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.
Wikipedia reference for Trioza centranthi: https://en.wikipedia.org/wiki/Trioza_centranthi.
Classification
Habitat and Range
Habitat
Wherever Valerian, the larval foodplant occurs.
Seasonal Activity
Adult all year.
Diet and Behavior
Life History
Nymphs form distinctive leaf-roll galls on Red Valerian (
Additional species information
Recorded status
T. centranthi
About True Bugs, Cicadas, Hoppers, Aphids and Allies: the wider group
Order-level background for Hemiptera, the group containing Trioza centranthi. Species-specific details appear above.
Group overview
Hemiptera (true bugs) includes over 80,000 described species across cicadas, aphids, leafhoppers, shield bugs, and bed bugs. Aphids alone cost global agriculture an estimated $2.5 billion annually in crop losses.
Ecological role of the group
Many Hemiptera are essential food sources for birds and predatory insects. Cicadas provide massive nutrient pulses during emergence events - a single Brood X emergence can involve trillions of individuals across 15 states.
Economic and practical significance of the group
The brown marmorated stink bug (Halyomorpha halys) caused $37 million in apple crop losses in a single year in the U.S. Mid-Atlantic region. Bed bug infestations in the U.S. increased by 500% between 2001-2010, costing the hotel industry hundreds of millions annually.
Recorded sources for this group: USDA, EPA, University research. Imported estimates may describe particular regions or reporting periods.
Photos of Trioza centranthi (3)
Frequently Asked Questions About Trioza centranthi
What is Trioza centranthi?
Trioza centranthi is a species in the family Triozidae, within the order Hemiptera.
How big is Trioza centranthi?
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.
Where is Trioza centranthi found?
Habitat: Wherever Valerian, the larval foodplant occurs.
When is Trioza centranthi active?
Trioza centranthi: seasonal activity - Adult all year..
What is the life cycle of a Trioza centranthi?
Nymphs form distinctive leaf-roll galls on Red Valerian (
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