Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Rare and very local resident.

Local Record: Grade 4   See here for explanation

Flight time:

Forewing: 3-4mm.

Foodplant: Broom.

Regional breakdown:

Year first recorded1989186819731976
Year last recorded1989195120151978
Number of records1253
Number of individuals1154
Unique positions1253
Unique locations1253
Adult records1233
Immature records0020

For the county, we have a total of 11 records from 11 sites. First recorded in 1868.


04.068 Trifurcula immundella 02 mine on broom
© Andy Nunn
04.068 Trifurcula immundella 01 mine on broom
© Andy Nunn

Species Account

Sutton & Beaumont, 1989: Local among broom.

2013 (CHF):Most of our records are of adult moths, however the larval mines should be looked for on broom as this species might be more common than we suspect. The mine is a long black straight gallery which passes down the twig initially. The mine then changes direction and the spaces between the ridges stain black as the mine fills them. The branches may appear stained black as the mines develop and a plant with many mines can often be recognised from a distance. The yellow larva is hardly visible in the mine.

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