Nick Upton / Sand-loving / Square-headed wasp (Tachysphex costae) feeding on Sea holly flowers (Eryngium maritimum) on a beach, Sardinia, Italy, June.

Adrian Davies / European beewolf (Philanthus triangulum) emerging from burrow in sand. Surrey, England, UK. August.

Piotr Naskrecki / Sand Wasp (Ammophila sp) carrying paralyzed caterpillar, on which she will lay her eggs in an underground burrow, Gorongosa National Park, Mozambique

Nick Upton / Heath sand wasp (Ammophila pubescens) carrying a caterpillar it has paralysed to its nest as food for its larvae, Studland heath, Dorset, UK, July.

Ingo Arndt / Sand wasp {Amophila sabulosa} with caterpillar prey, Germany

Andy Sands / Sand Wasp (Ammophila pubescens) carrying paralysed caterpillar of Beautiful Yellow Underwing moth (Anarta myrtilli) back to burrow, Surrey, UK, August

Andy Sands / Sand Wasp (Ammophila pubescens) carrying paralysed caterpillar of Common heath moth (Ematurga atomaria) back to burrow, Surrey, UK, August

Andy Sands / Sand Wasp (Ammophila pubescens) carrying paralysed caterpillar of Common heath moth (Ematurga atomaria) back to burrow, Surrey, UK, August

Milan Radisics / European beewolf (Philanthus triangulum) moving sand while digging nest, Budapest, Hungary, July.

Nick Upton / Female Sand wasp / Digger wasp (Bembix olivacea) excavating a nest hole in beach sand, flinging sand behind it as it works, Kos, Dodecanese Islands, Greece, August.

Nick Upton / Female Sand wasp / Digger wasp (Bembix olivacea) excavating a nest hole in beach sand, flinging sand behind it as it works, Kos, Dodecanese Islands, Greece, August.

David Kjaer / Sand wasp (Ammophila sabulosa) at burrow entrance, Arne, Dorset, UK, July.