Flies and other insects
True Flies
There are more than 5000 species of Diptera, the true flies, in Britain so only a very few are shown here.
Spotted Crane-fly

One of the many British craneflies, this one is common in gardens.
St Mark's Fly

Named because it appears around St Mark's day (25th April). Often hovers at about head height with long dangling legs.
Horse-fly

This is one of several species of Horse-fly, most of which can give a nasty bite. Often found near grazing pasture.
Bee-fly

Easily recognised and although the rigid proboscis, used for feeding on nectar, looks alarming this insect is harmless.
Tachina fera

This fairly large fly is easily recognised by its reddish legs, yellow wing bases and brick-coloured sides to its abdomen.
Greenbottle

Very common in gardens and easily recognised by its irridescent green colour.
Other Insects
Scorpion Fly

This harmles insect is named after the scorpion-like tail of the male. It feeds on dead insects, often stolen from spider's webs.
Green Lacewing

There are several species of lacewing, mostly green, although some are brown. They feed mainly on aphids.
Alderfly

The Alderfly has smokey wings, thick dark veins, and is always found near water.