Ernoneura argus (Zetterstedt, 1838)

A small, brown, bristly fly with wing markings that make it very distinctive. The fore margin is brownish and the wing membrane has numerous round brown spots placed adjacent to the main veins and mostly with a veinlet, or at least a trace of one at the centre. Occiput, thorax and abdomen brownish yellow. Frons and basal antennal joints red-brown. Face and jowls dusted pale grey. Palps yellowish and elongate. Proboscis shining black. Thoracic dorsum with shining black stripes. Wing length: ♂ 4.4 - 5.1 - 5.9 mm (2); ♀ 5.0 - 5.3 - 5.7 mm (4).