National Barkfly Recording Scheme (Britain and Ireland) |
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Cerobasis guestfalica |
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Species account |
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A small (c.1.5-2mm) apterous (wingless) barkfly. Common in Britain and Ireland. |
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The species has an oval abdomen which has a reddish-brown variable mottling on the upper side. |
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The species is readily distinguished by the characteristic ‘anchor’ mark on the head. |
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