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Spencer Dybdahl Riffle: Unknown gall
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Spencer Dybdahl Riffle: Saucer Gall Wasp (Andricus gigas)
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Spencer Dybdahl Riffle: Saucer Gall Wasp (Andricus gigas)
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Spencer Dybdahl Riffle: Saucer Gall Wasp (Andricus gigas)
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Spencer Dybdahl Riffle: Saucer Gall Wasp (Andricus gigas)
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Spencer Dybdahl Riffle: Saucer Gall Wasp (Andricus gigas) and Striped Volcano Gall Wasp (Andricus atrimentus)
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Spencer Dybdahl Riffle: Crystalline Gall Wasp (Andricus crystallinus)
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Spencer Dybdahl Riffle: Crystalline Gall Wasp (Andricus crystallinus)
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Spencer Dybdahl Riffle: Plate Gall Wasp (Andricus pattersonae)
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Spencer Dybdahl Riffle: Plate Gall Wasp (Andricus pattersonae)
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Spencer Dybdahl Riffle: Striped Volcano Gall Wasp (Andricus atrimentus)
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Spencer Dybdahl Riffle: Striped Volcano Gall Wasp (Andricus atrimentus)
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Spencer Dybdahl Riffle: Striped Volcano Gall Wasp (Andricus atrimentus)
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Spencer Dybdahl Riffle: Urchin Gall Wasp (Antron quercusechinus)