Flies are insects of the order Diptera, the name being derived from the Greek δι- di- "two", and πτερόν pteron "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced mechanosensory organs known as halteres, which act as high-speed sensors of rotational movement and allow dipterans to perform advanced aerobatics. Diptera is a large order containing an estimated 1,000,000 species including horse-flies, crane flies, hoverflies, mosquitoes and others, although only about 125,000 species have been described.
The Scenopinidae or window flies are a small family of flies (Diptera), distributed worldwide. In buildings, they are often taken at windows, hence the common name window flies.
Stratiomys singularia, the flecked general, is a Palearcticspecies of soldier fly.
Sargus iridatus, the iridescent centurion, is a European species of soldier fly.
Microchrysa polita, the black-horned gem, is a species of soldier fly found in Europe, Asia, and North America.
Microchrysa flavicornis, the green gem, is a European species of soldier fly.
Microchrysa cyaneiventris, the black gem, is a European species of soldier fly.
Pachygaster atra, the dark-winged black, is a European species of soldier fly.
Vanoyia tenuicornis, the long-horned soldier, is a European species of soldier fly.
Oxycera pygmaea, the pygmy soldier, is a European species of soldier fly.
Oxycera nigricornis, the delicate soldier, is a European species of soldier fly.
Oxycera morrisii, the white-barred soldier, is a European species of soldier fly.
Nemotelus uliginosus, the barred snout, is a Palearctic species of soldier fly.
Beris vallata, the orange legionnaire or common orange legionnaire, is a European species of soldier fly.
Beris chalybata, the murky-legged black legionnaire, is a European species of soldier fly.
Beris clavipes, the scarce orange legionnaire, is a European species of soldier fly.
Beris geniculata, the long-horned black legionnaire, is a European species of soldier fly.
Neoitamus cyanurus, the common awl robberfly, is a species of 'robber fly' belonging to the family Asilidae.
Hybomitra lurida is a species of horse-fly in the family Tabanidae. It is found across central and Northern Europe and Asia. It is a large fly, between 12–15 millimetres long.
Neoitamus cothurnatus, the scarce awl robberfly, is a species of 'robber fly' belonging to the family Asilidae.
