Mayfly · Aquatic insect

Pale Evening

Procloeon bifidum
Pale Evening — Spinner
Size
5–7mm
Hook size
#18–16
Hatch window
Season June–OctoberPeak time 17:00–20:00
Water temperature
14° peak
9°20°
Hatches from 9°C, peaking at 14°C, tailing off by 20°C.
How fish feed on it

As with the pale wateries, fish it flush in the film rather than perched on top.

Flies that imitate this
Tups Indispensable
Tups Indispensable
CDC Olive Emerger
CDC Olive Emerger
Ecology
Rivers & stillwaterAlpine rivers
Where you'll find this
  • British IslesPresent
  • IberiaPresent
  • The AlpsPresent
  • ScandinaviaPresent
  • Continental EuropePresent
  • Atlantic fringePresent
Present throughout
About the genus Procloeon

Procloeon is a genus of small minnow mayflies in the family Baetidae. There are at least 20 described species in Procloeon .

Mayflies