Erlend Haarberg / Midges (Chironomus islandicus) swarming, Myvatn, Iceland, June

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

Jan Hamrsky / Non-biting midge larvae (Chironomidae) in the shelter attached to the freshwater sponge (Spongilla lacustris) Europe, August, controlled conditions

Jan Hamrsky / Non-biting midge larvae (Chironomidae) in the shelter attached to the freshwater sponge (Spongilla lacustris) Europe, August, controlled conditions

Nick Upton / Non-biting chironomid midges (Chironomidae) silhouetted as they mate under a leaf, with the female hanging below a male with plumose antennae, Wiltshire garden, UK, April.

Nick Upton / Male Non-biting chironomid midge (Chironomus sp.) with plumose antennae resting on a dead plant stem on heathland, Sandy, Bedfordshire, UK, April.

Erlend Haarberg / Midges (Chironomus islandicus) swarming, Myvatn, Iceland, June

Erlend Haarberg / Midges (Chironomus islandicus) swarming, Myvatn, Iceland, June 2008

Erlend Haarberg / Midges (Chironomus islandicus) swarming, Myvatn, Iceland, June

Erlend Haarberg / Photographer Orsolya Haarberg surrounded by swarming Midges (Chironomus islandicus) Myvatn, Iceland, June 2008, model released

Stephen Dalton / Non-biting midge (Chironomus sp) flying, UK, controlled conditions

Willem Kolvoort / Eggs of Non-biting midges (Chironomidae) attached to freshwater vegetation, Holland