Tephritis formosa

Length males 4 to 5 mm, females 5 to 6 mm. It has light beige wings that are boldly patterned with dark markings, the wing tip is clear with two small dark marks. 

Adult Gall

Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.

Most well vegetated places, especially meadows and grassland where the larval host plants grow.

The host plants for the larvae are Hawk's-beard, Cat's-ear and Sow-thistle flower heads, causing galls to form on them.

Quite common and widespread, at least in southern Britain.

Fairly common in Leicestershire and Rutland