Paul Bertner / Flat Bug (Aradidae) trapped in water droplet, Mananara Nord National Park, Madagascar

David Shale / Pram bug (Phronima) swimming, Mid-Atlantic Ridge. Deep sea species.

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 / Japanese fireflies (Luciola cruciata) in flight at night, Japan endemic species, Ichikawa-Riveer, Asago Hyougo, Japan, July

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

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

Jan Hamrsky / Needle Bug / Water Stick Insect (Ranatra linearis) portrait. Europe, August.

Ingo Arndt / Water Boatman (Notonecta glauca) with reflection underwater, a true bug of the Heteroptera suborder, Europe

Ingo Arndt / Pond Skater (Gerris sp) using surface tension to walk on water, a true bug of the Heteroptera suborder, Europe

Nigel Cattlin / Giant water bugs (Lethocerus indicus) in plastic bag, at market. Bangkok, Thailand.

Nick Upton / Common pond skater / Water strider (Gerris lacustris) pair mating on the surface of a garden pond, Wiltshire, UK, May.