Bibio Pomonae is a species of the Dipteras, and in the Bibionidae family. It can reach of about 10-13mm in lenght. The body is often shiny black, with a long black abdomen. Deep crimson-red femurs and dark tibiae and tarsi (legs), as we often want to imitate while tying this pattern.
Bibio is not a water living insect, but while their swarming, a lot of them crash lands in the water and that gives a h... of good fishing.
Hook : Mustad C49s #12
Tying Thread : Semperfli Classic Waxed thread 8/0, Black
Ribbing : Crystal Flash
Body : Superfine Dubbing, Black
Wing : Semperfli Poly-Yarn, Orange
Legs : Pheasant Tail Knotted, Black
Thorax : Before wing: Ice Dubbing, UV Red - Around and after wing: Superfine Dubbing, Black
Hackle : Whiting, Black
Many fishermen means that this is the best pattern to use when the Bibio swarms. First time I saw this pattern was a video by Davie McPhail, he called it Bibio Hopper