Micro Moth Gallery – Derbyshire – www.derbyshiremoths.org

Stigmella microtheriella - 7th Nov 2025 - Glossop, Long Clough - Christian Heintzen - on Hazel (Corylus) (A) > long narrow and often following veins, hence often angular > initially filled with narrow frass line, later becoming more scattered > egg lower surface often against vein but not in vein axil > exit slit on lower surface of leaf

Phyllonorycter rajella - On Alder - 7th Nov 2025 - Woodhead, Longdendale - Christian Heintzen - on Alder (Alnus glutinosa) > lower surface tentiform mine away from leaf margins (A,B) > elongated mine between two lateral veins with one strong crease (a) on underside > lower epidermis yellow-green > mottled appearance of upper side due to partial removal of palisade parenchyme (b)

Stigmella aurella - on bramble - 30/11/2025 - Staunton Harold Reservoir - Tony Davison - the frass appears thick and more than half the width of the gallery

Stigmella aurella - On bramble - 8th Nov 2025 - Rowley Bridge - Christian Heintzen - on Bramble (Rubus) (A) > long gallery not widened towards the end often crossing midrib > frass at least covering half the width of the corridor > cocoon is brown (B)

Stigmella tityrella - on Beech - 10th Nov 2025 - Upper Derwent Valley - Christian Heintzen - on Beech (Fagus sylvatica), > tightly undulating gallery mine moving between two lateral veins towards leaf margin > oviposition in or near axil between lateral vein and midrib > frass initially in narrow central line then becoming dispersed.

Ectoedemia heringi - On oak - 11th Nov 2025 - Wildboar Clough, Longdendale - Christian Heintzen - Sample comment - on Oak (Quercus robur) in green sector of fallen leaf (A) > narrow corridor with broad frass line running along midrib (a) abruptly widening into a blotch with frass piled up against mid rib (b). > oviposition on upper side of leaf next to a vein (C).

Stigmella atricapitella - On oak - 12th Nov 2025 - Longdendale, Torside - Christian Heintzen - on Oak (Quercus robur) in green sector of fallen leaf > narrow corridor with central frass line leaving clear margins > oviposition on lower side of leaf away from leaf margin > larva yellow with dark prothoracic sclerites(first larva parasitised and darker)

Stigmella salicis - On Sallow (Salix) - 12th Nov 2025 - Longdendale - Christian Heintzen - (A,B) > contorted gallery with tendency to form a secondary blotch > frass line broad > oviposition on lower surface, close to vein or leaf margin (B.1- B.3)

Phyllonorycter stettinensis - On Alder - 12th Nov 2025 - Longdendale - Christian Heintzen - on Alder (Alnus glutinosa) > upper surface oval tentiform mine over lateral vein > upper surface yellowish-green (a) (later brown) with one strong crease (b)

Stigmella assimilella - On Aspen - 13th Nov 2025 - Hayfield, Birch Vale, Sett valley - Christian Heintzen - on Aspen (Populus tremula) (A) > contorted gallery with tendency to form a secondary blotch due to tight turns (B.1, C) > frass line broken and linear (B.1, C) > oviposition on upper surface, close to vein or midrib (B.2, D)

Ectoedemia argyropeza - On Aspen - 13th Nov 2025 - Hayfield, Birch Vale, Sett Valley - Christian Heintzen - on Aspen (Populus tremula) > triangular full depth blotch in green sectors at leaf base in vein axil (A) > oviposition in petiole about 1 cm below leaf base leads to widening (gall) of the petiole at the leaf base, (B) > frass deposited along the midrib and lateral vein creating a V-shaped frass line (C) > larva with chain of brown thoracic spots and dark thoracic plate feeding venter up (D)

Stigmella atricapitella - On oak - 13th Nov 2025 - Hayfield, Birch Vale, Sett Valley - Christian Heintzen - on Oak (Quercus robur) in green sector of fallen leaf > narrow corridor with central frass line leaving clear margins > oviposition on lower side of leaf away from leaf margin > larva yellow (here parasitised and darker) with dark prothoracic sclerites.

Ectoedemia subbimaculella - On oak - 13th Nov 2025 - Thornsett, Sett Valley - Christian Heintzen - on Oak (Quercus robur) in green sector of fallen leaf (A) > long narrow corridor along midrib (a)followed by full depth blotch in vein axil (B) > long slit along leaf vein on underside of leaf mine (b)

Phyllonorycter stettinensis - On Alder - 24th Nov 2025 - Glossop, Long Clough - Christian Heintzen - on Alder (Alnus glutinosa) > upper surface oval tentiform mine over lateral vein (A,B) > upper surface yellowish-green (a) (later brown) with one strong crease (b) > frass in one corner of the mine (c) > pupa (usually) in a tough cocoon inside the mine (d)

Stigmella floslactella - On Hazel - 24th Nov 2025 - Long Clough, Glossop - Christian Heintzen - on Hazel (Corylus) (A) > long corridor/gallery intially filled with green frass (B,C) > final larval chamber broader than larva (B) > exit slit on upper surface of leaf (D) > egg in or at vein [E]

Ectoedemia occultella - On birch - 24th Nov 2025 - Glossop, Gnat Hole - Christian Heintzen

Ectoedemia argyropeza - On Aspen - 24th Nov 2025 - Glossop - Christian Heintzen - on Aspen (Populus tremula) > triangular full depth blotch in green sectors at leaf base in vein axil (A-C) > oviposition in petiole about 1 cm below leaf base leads to widening (gall) of the petiole at the leaf base, (a) > frass deposited along the midrib and lateral vein creating a V-shaped frass line (b) > larva (A.1-C.1) with chain of brown thoracic spots and dark thoracic plate (c)