Trioza remota

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Description

The larvae of Trioza remota cause galls to form on the leaves of English Oak and Sessile Oak. These take the form of a raised pimple on the upper surface of the leaf about 1 to 2 mm across, often several to a leaf. On the underside of the leaf there is a corresponding shallow depression which contains a flat, pale orange-yellow nymph.

Identification difficulty

Gall Adult

Habitat

Where the host species of oak occur.

When to see it

May to October.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Fairly frequent in Leicestershire and Rutland.

  • Peter Smith
    Leicester, Kirby Frith LNR
    17 October 2024
  • David Nicholls
    Ratby
    11 February 2023
  • Graham Calow
    Stoney Stanton,
    Highgate Lodge Farm open access land
    30 October 2020
    galls on Pedunculate Oak
  • sue
    Bagworth, Manor Farm woodland
    25 August 2018
  • David Nicholls
    Markfield, path by A50
    22 October 2020
    nymph in hollow
    on underside of leaf
  • Graham Calow
    Stoney Stanton,
    Highgate Lodge Farm open access land
    30 October 2020
    nymph on Pedunculate Oak
  • David Nicholls
    Ratby
    11 February 2023
  • David Nicholls
    Ratby
    11 February 2023

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species data profile ?

Species profile

Species group:
Bugs
Kingdom:
Animalia
Order:
Hemiptera
Family:
Triozidae
Records on NatureSpot:
51
First record:
06/09/2014 (Semper, Alan)
Last record:
21/10/2024 (Timms, Sue)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.

Latest images

Latest records

  • sue
    Bagworth Beacon
    07 October 2018
    Gall on oak leaf
  • sue
    Bagworth, Manor Farm woodland
    25 August 2018
  • David Nicholls
    Thornton Reservoir
    05 October 2019
    upper
  • David Nicholls
    Thornton Reservoir
    05 October 2019
    lower
  • sue
    Bagworth Beacon
    07 October 2018
  • sue
    Bagworth Heath Country Park
    06 November 2017
  • sue
    Cademan Wood
    28 October 2018
  • David Gould
    fields near Fosse Park
    25 November 2018
    nymph
  • David Nicholls
    Thornton Reservoir
    05 October 2019
    nymph
  • David Nicholls
    Thornton Reservoir
    05 October 2019
    nymph