Nepticulidae : Nepticulinae
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Fomoria weaveri

(Stainton, 1855) 43 / 4.077
=Ectoedemia weaveri
Photo © Derek Parkinson,  Barden Moor, VC64 - leaf mine

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Yorkshire Status: Local resident.

This species is thinly distributed in most areas where cowberry grows, but needs some searching to find it at times. Once found, it is easy to recognise, as it it the only species which forms gallery mines on cowberry. The mine is a long slender corridor with the frass in a thick central line. This then abruptly widens into a large blotch with a central mass of frass. The cocoon is spun in an inflated cavity in the centre of the blotch which causes the leaf to pucker and usually fall off. There is no record for VC61 due to a lack of the food plant.

Sutton & Beaumont, 1989: Local on moorland localities.

Mine: Either the leaf or a good photograph required

Recorded in 12 (6%) of 200 10k Squares.
First Recorded in 1868.
Last Recorded in 2024.
Additional Stats

< Etainia decentella  |  Fomoria septembrella >
Wingspan: 7mm
Flight: Late May to August
Foodplant:   Cowberry
Nat Status: Nationally Scarce B
Verification Grade:  Adult: -  Mine: L
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
20/04/2024+65SE18 - Middleham
22/04/2022562SE99 - Harwood Dale
17/04/2022162SE99 - Harwood Dale
07/04/2022+64SE26 - Ripley / Summerbridge
14/04/2021+64SE16 - Pateley Bridge
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2024 | 2000 to 2024 | Graph Key
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