Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and local resident.

Local Record: Grade 2   See here for explanation

Flight time: late Mar-early May.

Forewing: 5-8mm.

Foodplant: Birch.

Regional breakdown:

Year first recorded19041859188318831883
Year last recorded20142010201420112015
Number of records9711155
Number of individuals148370325
Unique positions8710124
Unique locations6710124
Adult records45251
Immature records40593

For the county, we have a total of 47 records from 39 sites. First recorded in 1859.


02.007 Eriocrania semipurpurella 03 early instar larva in mine
© Dave Shenton
02.007 Eriocrania semipurpurella 02 larva
© Charles Fletcher, 25 May 2012
02.007 Eriocrania semipurpurella 01
© Charlie Streets, 2 Mar 2011

Species Account

Similar species: 0012 Eriocrania sangii.

For further information refer UK Moths.
Most records are of leafmines. Refer leafmines.co.uk
For information on genitalia determination refer to Lepidoptera Dissection Group 2013 website for male and female.

Sutton & Beaumont, 1989: Widely recorded, although there is no record from VC61. All Yorkshire records are regarded as unconfirmed on map 13 in MBGBI 1, however there are a number of confirmed records from the south of VC63.

2012 (CHF): Adults are virtually impossible to tell from E. sangii however the larvae are distinctive. The head is entirely ochreous brown or black. The first thoracic segment has one large dark spot.

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