Laurent Geslin / A swarm of midges (Chironomidae) flying in the morning. Walthamstow reservoir, London, UK

Erlend Haarberg / Midges (Chironomus islandicus) on a 'No Walking' sign, Myvatn, Iceland, May

John Abbott / Composite image of flying insects visiting blacklight, Texas, USA, September

Steve Knell / Tufted duck (Aythya fuligula) drake on water with Midges (Chironomidae) Iceland. June

Steve Knell / Swarm of Midges (Chironomidae) flying around grass stems. Lake Myvatn, Iceland. June

Steve Knell / Swarm of Midges (Chironomidae) flying around grass stems. Lake Myvatn, Iceland. June

Tom Gilks / Fishing boat with swarm of Lake flies (Chironomid sp) swarming in background, Lake Victoria, Kenya, February 2013.

Ingo Arndt / Swarm of Midges (Chironomidae), France.

Andy Sands / Mosquito (Chironomus sp.) male mosquito resting on grass, Hertfordshire, England, UK. April

Jan Hamrsky / Non-biting midge (Chironomidae) adult male, Europe, January, controlled conditions.

Jan Hamrsky / Non-biting midge (Chironomidae) pupa, Europe, January, controlled conditions. Image taken using digital focus stacking.

Jan Hamrsky / Non-biting midge larva (Chironomidae) hidden in its shelter and collecting organic debris from the current, Europe, May, controlled conditions