Col:Curculionidae
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Orchestes testaceus (Müller, 1776)
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the gallery runs to the leaf edge and ends in a blotch

 

Food Plant: Alnus sp. (Alder), Betula sp. (Birch)

Egg: Underside of leaf

Mine: Early Summer

Notes: Initially a gallery is formed which runs towards the leaf edge from a vein. The mine then becomes a blotch and a spherical cocoon develops in this (as shown). The mine is brown. Mine shown on A.incana. An uncommon UKBAP species.

Data: 12.vi.2008, Kingfishers Bridge, Cambs, VC 29

Image:© Ian Barton

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