Lep:Gracillariinae
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15.008 Caloptilia alchimiella (Scopoli, 1763)
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pupa

 

Food Plant: Quercus (Oak)

Egg: Underside of leaf

Mine: July to October

Pupa: In a cocoon under a membrane on underside of leaf.

Notes: Early mine a narrow gallery leading to a squarish or triangular blotch. Then forms up to three successive cones by folding the lobe of a leaf downwards. This species cannot be told from Caloptilia robustella without breeding or examining the pupae. The fromtal projection is onmly slightly elongated in alchimiella (as shown) and much more elongated in robustella)

Data: ex mine 16.viii.2012, Hardcastle Crags, Calderdale, W.Yorkshire, VC 63

Image:© Charlie Streets

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