Mystacides longicornis (length 6 to 9 mm) is easy to identify due to its striking patterned wings with brown and yellow shaded bars, its very long antennae and red eyes.
Mystacides longicornis is in the family Leptoceridae of which the main identifying feature is that their antennae are longer than those of other caddisflies. 
The typical form has the brown and yellow shaded bars, but there is a less common variety which is a plain yellow form.
The male is distinguised from the female by having large eyes!

1st, 2nd & 3rd photo: A male. Loosdrecht, The Netherlands, 1 June 2012
4th photo: A female. Zanderij Crailo, Hilversum, The Netherlands, 24 June 2013
5th photo: A male. Caught in my self made moth trap. In my yard, Hilversum, The Netherlands, 15 August 2018