Jan Hamrsky / Diving beetle (Colymbetes fuscus) close up head portrait. Europe, June. Controlled conditions.
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Ann & Steve Toon / British diving beetles (Dytiscus sp.), museum specimens, Tyne and Wear Archives and Museums
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Jan Hamrsky / Lesser diving beetles (Acilius sulcatus) mating pair, Europe, May, controlled conditions
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Jan Hamrsky / Lesser diving beetles (Acilius sulcatus) mating pair, Europe, May, controlled conditions
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Jan Hamrsky / Lesser diving beetles (Acilius sulcatus) mating pair, Europe, May, controlled conditions
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Jan Hamrsky / Diving beetles (Graphoderus bilineatus) female (right) and male (left) Europe, August, controlled conditions
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Jan Hamrsky / Diving beetles (Graphoderus bilineatus) female (left) and male (right) Europe, August, 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
