Wild Wonders of Europe / Unterthiner / Close up of tree trunk with fallen bark showing insect galleries, Bialowieza NP, Poland, February 2009
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Mark Moffett / Bark Beetle (Dendroctonus pseudotsugae) larvae with radiating galleries in Douglas Fir (Pseudotsuga menziesii) tree, Flat Creek, University of Idaho Forest, Idaho
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Mark Moffett / Bark Beetle (Dendroctonus pseudotsugae) larvae with radiating galleries in Douglas Fir (Pseudotsuga menziesii) tree, University of Idaho Forest, Idaho
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Mark Moffett / Bark Beetle (Dendroctonus pseudotsugae) larvae with radiating galleries in Douglas Fir (Pseudotsuga menziesii) tree, Flat Creek, University of Idaho Forest, Idaho
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Adrian Davies / Dutch elm disease. Galleries caused by beetle {Scolytus sp} on inside of Elm bark. UK
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Onne van der Wal / Photographer Onne van der Wal's gallery on Bannister's Wharf, downtown Newport, Rhode Island, USA.
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Onne van der Wal / Onne van der Wal gallery on Bannisters Wharf, Newport, Rhode Island, USA.
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Premaphotos / Harlequin beetle male (Acrocinus longimanus) above one of the characteristic oval larval galleries, in a dead tree in rainforest, Trinidad
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GEORGETTE DOUWMA / Elm bark beetle {Scolytus sp} galleries in Elm bark {Ulmus propinqua} UK galleries produced