Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and local resident.

Local Record: Grade 3 adult, 2 leaf-mine   See here for explanation

Flight time:

Forewing: 2-3mm.

Foodplant: Poplar.

Regional breakdown:

Year first recorded20131859188320012001
Year last recorded20142013201420102011
Number of records953036
Number of individuals240750
Unique positions552436
Unique locations552535
Adult records20000
Immature records732936

For the county, we have a total of 53 records from 43 sites. First recorded in 1859.


04.039 Stigmella trimaculella 06 mine on poplar
© Terry Box, 4 Oct 2020
04.039 Stigmella trimaculella 05 mine on poplar
© Andy Nunn
04.039 Stigmella trimaculella 04 mine on black poplar
© Andy Nunn
04.039 Stigmella trimaculella 03 tenanted mine
© Dave Shenton
04.039 Stigmella trimaculella 02 mine and cocoon
© Dave Shenton
04.039 Stigmella trimaculella 01 mine
© Charlie Streets, 28 Jul 2010

Species Account

Most records are of leaf-mines.

Sutton & Beaumont, 1989: Widespread and fairly common, recorded from all five vice counties.

2013 (CHF): Leaf mines are locally common on black poplar across the county. Unlikely to be confused with any other species. A gallery with a thin central frass line widens to almost form a blotch.

See background to species accounts.  Index of Vernacular names - Search - Random Species