Jan Hamrsky / Diving beetle (Colymbetes fuscus) close up head portrait. Europe, June. Controlled conditions.
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) female, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) hiding in freshwater red algae (Batrachospermum moniliforme) Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) female, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) hind oar-like leg detail, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) refilling its air supply under the wing cases, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) female, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) refilling its air supply under the wing cases, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle (Dytiscus marginalis) refilling its air supply under the wing cases, Europe, September, controlled conditions
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Jan Hamrsky / Great diving beetle larva (Dytiscus marginalis) feeding on tadpole, Europe, May, controlled conditions
