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Cychrus spinicollis L. Dufour, 1857
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Cychrus spinicollis L. Dufour, 1857 subsp. spinicollis L. Dufour, 1857
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Cyclocybe aegerita (V. Brig.) Vizzini 2014
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Cyclodictyon laete-virens (Hook. & Taylor) Mitt
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Cyclopecten hoskynsi (Forbes, 1844)
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Cyclophora albipunctata (Hufnagel, 1767)
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Cyclophora linearia (Hübner, 1799)
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Cyclophora porata (Linnaeus 1767)
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Cyclophora punctaria (Linnaeus, 1758)
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Cyclophora puppillaria (Hübner, 1799)
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Cyclophora sp. Hübner, 1822
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Cyclophora suppunctaria (Zeller, 1847)
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Cyclosa algerica Simon, 1885
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Cyclosa conica (Pallas, 1772)
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Cyclosa insulana (Costa, 1834)