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38.017 Elachista adscitella Stainton, 1951
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larva in mine


Food Plant: Deschampsia cespitosa (Tufted Hair-grass), Sesleria caerulea (Blue Moor-grass)
Recorded Elsewhere: Brachypodium sylvaticum (False Brome),
Calamagrostis arundinacea, Carex elata (Tufted-sedge), Deschampsia flexuosa (Wavy Hair-grass), Elymus caninus (Bearded Couch), Festuca altissima (Wood Fescue), Festuca drymeja, Festuca gigantea (Giant Fescue), Melica nutans (Mountain Melick), Melica uniflora (Wood Melick), Milium effusum (Wood Millet), Phleum, Poa chaixii (Broad-leaved Meadow-grass), Poa remota, Sesleria argentea, Sesleria sadlerana

Egg: laid on a leaf

Mine: September-May; June-July

Notes: Mining starts in the autumn and one or two larvae may mine a leaf. The mine starts at the leaf tip or is directed to this, with frass packed at the beginning of the mine (as shown with larva). After hibernation a new leaf is mined downwards forming a broad irregular, whitish gallery mine. Pupation occurs on the ground. Found in sheletered woodland glades. Mine shown on Deschampsia cespitosa (Tufted Hair-grass).

Data: 25.iii.2021, Sidlings Copse, Oxfordshire, VC23, adult emerged 17.v.2021, gen det Peter Hall

Image:© Will Langdon

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