Dasineura thomasiana

Description

The larvae of the gall midge Dasineura thomasiana cause galls on various species of Lime. Young terminal leaves are rolled and distorted, the veins thickened. The larvae are initially white, becoming orange-red when mature. 

Similar Species

Dasineura tiliae causes leaf rolls on leaves

Identification difficulty

Gall  Adult

Recording advice

Adult: Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.  

Gall:  Please supply a photograph of the galled leaves with your record and state the host species.

Habitat

Galls may be found wherever Lime species occur.

When to see it

Galls may be recorded whenever Lime species are in leaf.

Life History

Pupation occurs in the soil.

UK Status

Status in Britain is difficult to determine due to lack of records.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map

MAP KEY:

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

UK Map

Species profile

Species group:
insect - true fly (Diptera)
Kingdom:
Animalia
Order:
Diptera
Family:
Cecidomyiidae
Records on NatureSpot:
6
First record:
18/05/2020 (Timms, Sue)
Last record:
13/05/2025 (Timms, Sue)

Total records by month

% of records within its species group

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