Lep: Elachistidae
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38.016 Elachista subalbidella Schläger, 1847
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larva in mine
larva in mine

Food Plant: Molinia caerulea (Purple Moor-grass)

Egg: laid near the tip of a leaf

Mine: August-April

Notes: Initially makes a short mine towards the leaf tip which then turns downwards and makes a full depth flat mine, with smooth sides, which gradually broadens (as shown, with larva). The larva lives in a faint central frass-lined silk tube. It is fully fed in the autumn, but hibernates in the mine, emerging to pupate in April. Found on heaths and moorland throughout Britain.

National Status: Local

Bradley No: 621

Data: 06.ix,2016, Llantrisant Common, Rhondda Cynon Taf, Glamorganshire, VC41

Image:© George Tordoff

sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists