Yponomeutidae : Yponomeutinae
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Photo © Ben Sale,  Stevenage, Hertfordshire (09/04/20)

Similar Herts & Middlesex Species
Ocnerostoma piniariella
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Ocnerostoma friesei

(Svensson, 1966)445 / 16.024

General commentsNotes:
For many years this species and Ocnerostoma piniariella, were confused. O. friesei has grey antennae whilst those of piniariella are either white or ringed with white. Both have larvae that mine inside Scots Pine Pinus sylvestris needles.

Hertfordshire notes:
Recorded 1972-1993 then re-found in 2013 after a gap of 20 years. One potential extra record is that currently attributed to O. piniariella from Symonds Hyde prior to 1890. All other records of both species are valid. Probably much under-recorded

Middlesex Notes:
Three sites in the north-east of the county, at Trent Park and Enfield and then more recently in the Barnet area, provide the only county records to date. .

Determination by Genitalia Examination Required

Recorded in 7 (17%) of 41 10k Squares.
First Recorded in 1972.
Last Recorded in 2023.
Additional Stats

Ocnerostoma piniariella | Ypsolopha mucronella >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
21/06/2023121TQ29 - Barnet / Finchley
07/08/2022121TQ29 - Barnet / Finchley
19/05/2022120TL11 - Harpenden / Wheathampstead
07/08/2020121TQ29 - Barnet / Finchley
12/04/2020120TL31 - Hertford
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Ocnerostoma friesei
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VC20 VC21 VC21 VC20
Click Map for Details
Wingspan: 8-10mm
Flight: Two or Three Generations
March - May, Aug, Nov
Foodplant:   Scots Pine
Nat Status: Local
Verification Grade:  Adult: 4
 Immature Adult   [Show Flight Weeks]
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