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 adult, 3 leaf-mine   See here for explanation

Flight time:

Forewing: 2mm.

Foodplant: Rowan.

Regional breakdown:

Year first recorded200919782012
Year last recorded200920112012
Number of records231
Number of individuals410
Unique positions231
Unique locations231
Adult records010
Immature records221

For the county, we have a total of 6 records from 6 sites. First recorded in 1978.


0104 Stigmella magdalenae 03 mine on Rowan
© Tony Moverley 18th Sept 18
0104 Stigmella magdalenae 02 mine
© Charles Fletcher, 25 Aug 2011
0104 Stigmella magdalenae 01 mine
© Charles Fletcher, 25 Aug 2011

Species Account

2013 (CHF): The first county record was from Maitland Emmett in 1978 and leaf mines on rowan have been found in scattered areas across the county since then. This is a much less common species than Stigmella nylandriella on rowan but the mines are usually fairly distinctive. The corridor is narrow from start to end, and compressed into a small space, often along a major vein. The frass is in a narrow, regularly interrupted central line leaving clear edges. In thick leaves the frass line is broader, and the corridor is shorter. The mine can sometimes follow the leaf edge in the manner of nylandriella.

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