Premaphotos / Red-eyed snail fly (Tetanocera arrogans) mating pair, UK

Premaphotos / Snail fly (Elgiva cucularia), mating pair, UK

Roman Willi / Marsh flies (Tetanocera sp.) mating pair, Lucerne, Switzerland. May.

Andy Sands / Stripe-backed snailkiller fly (Limnia unguicornis), female, in typical head down pose on grass. Buckinghamshire, England, UK. May. Focus Stacked.

Andy Sands / Stripe-backed snailkiller fly (Limnia unguicornis), male, in typical head down pose, with rain drops on grass. Buckinghamshire, England, UK. May. Focus Stacked.

Andy Sands / Stripe-backed snailkiller fly (Limnia unguicornis), male, climbing back up grass after rainy shower. Buckinghamshire, England, UK. May. Focus Stacked.

Andy Sands / Snail-killing fly (Pherbellia cinerella) in typical head down pose on grass stem with rain drops. Buckinghamshire, England, UK. May. Focus Stacked.

Andy Sands / Blue long-horned snailkiller fly (Sepedon sphegea), male, in typical head down pose on sedge stem. Buckinghamshire, England, UK. May. Focus Stacked.

Andy Sands / Blue long-horned snailkiller fly (Sepedon sphegea), male, in typical head down pose on sedge stem. Buckinghamshire, England, UK. May. Focus Stacked.

Doug Wechsler / Marsh fly (Sciomyzidae sp.) on log, La Selva Biological Station, Costa Rica.

Doug Wechsler / Marsh fly (Limnia sp.) on leaf, Philadelphia, Pennsylvania, USA. June.

Andy Sands / Snail Killing Fly (Sciomyzidae sp.) perched on reed stem above pond, Hertfordshire, England, UK, August