Jan Hamrsky / Great diving beetle (Dytiscus marginalis) and Dragonfly nymph (Aeshnidae), Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Crawling water beetle (Berosus signaticollis), Europe, May, controlled conditions

Jan Hamrsky / Diving beetle larva (Hyphydrus ovatus), Europe, June. Controlled conditions.

Jan Hamrsky / Diving beetle (Haliplus ruficollis), Europe, June. Controlled conditions.

Jan Hamrsky / Diving beetle (Colymbetes fuscus) close up head portrait. Europe, June. Controlled conditions.

Mark MacEwen / Japanese firefly (Luciola cruciata) light trails at night above stream in rural Japan. June.

Yukihiro Fukuda / Light trails of Japanese fireflies (Hotaria parvula and Luciola cruciata), Nichinan-chou, Tottori, Japan, July, Endemic species.

Yukihiro Fukuda,Yukihiro Fukuda / Japanese fireflies (Luciola cruciata) in flight at night, Japan endemic species, Hino-River, Nichinan-chou, Tottori, Japan, July

Jan Hamrsky / Diving Beetle (Rhantus suturalis). Czech Republic. Controlled conditions.

Jan Hamrsky / Great Diving Beetle (Dytiscus marginalis) larva feeding on small fish. Czech Republic. Controlled conditions.

Stephen Dalton / Great Silver Water / Diving Beetle (Hydrophilus piceus) male. Sussex, UK, March.

Chris Shields / Illustration of Water ladybird (Anisosticta novemdecimpunctata / 19-punctata), winter form.

Chris Shields / Illustration of British native ladybirds. From top left to right: Sixteen or 16-spot ladybird (Tytthaspis 16-punctata); Thirteen or 13-spot ladybird (Hippodamia 13-punctata); Bryony ladybird (Epilach...

Solvin Zankl / Lars Hendrickson watching Black piston water beetles (Hydrophilus aterrimus) feeding on a tadpole, State Collection in Munich, Germany, June

Stephen Dalton / Seven spot ladybird {Coccinella septempunctata} drinking from water on leaf, UK

Kim Taylor / Water beetles (Dytiscus marginalis) and (Acilius sulcatus) clustered around an air bubble trapped beneath the ice of a frozen pond, digitally enhanced, Surrey, England

Solvin Zankl / Namib desert beetle / Fog Basking Beetle (Stenocara gracilipes) drinking droplets of water which gather on its body during the early morning fog over the dunes, Namib desert, Namibia

Kim Taylor / Whirligig Beetle (Gyrinus sp) on the surface of a pond. Surrey, UK

Jane Burton / Great Diving Beetle {Dytiscus marginalis} female taking air at water surface, Surrey, England.

Michael Durham / Diving Beetle (Cybister fimbriolatus) jumping into water, photographed with a high-speed camera, central Texas

Edwin Giesbers / Entomologist looking at pinned Water scavenger beetle (Hydrophilus spp) specimens in collection. Nature Museum Brabant, Tilburg, The Netherlands. 2019.

Andy Sands / Seven spot ladybird (Coccinella septempunctata) on grass stem at dawn covered in dew, Hertfordshire, England, UK, July - Focus Stacked

Rod Williams / Water ladybird (Anisosticta novedecimpunctata) Sutcliffe Park Nature Reserve, Eltham , London, England, UK. June.

Jan Hamrsky / Water scavenger beetle and larva (Hydrophilidae), Europe, May, controlled conditions

Jan Hamrsky / Water scavenger beetle larva (Hydrophilidae), Europe, May, controlled conditions

Jan Hamrsky / Water scavenger beetle (Hydrophilidae) Europe, May, controlled conditions

Jan Hamrsky / Water scavenger beetle (Hydrophilidae) Europe, May, controlled conditions

Jan Hamrsky / Water scavenger beetles (Hydrophilidae) Europe, May, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) and Dragonfly nymph (Aeshnidae), Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Great diving beetle (Dytiscus marginalis) male, Europe, August, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Cybister lateralimarginalis) female, Europe, May, controlled conditions

Jan Hamrsky / Diving beetle (Hyphydrus ovatus) refilling its air store by the surface, Europe, July, controlled conditions

Jan Hamrsky / Diving beetle (Hyphydrus ovatus), Europe, July, controlled conditions