Procloeon bifidum


A light brown mayfly, which although superficially similar to several other species, can be readily distinguished from other river mayflies by the absence of any hindwings.

Identification difficulty

Around ponds and the margins of slow moving water.

When to see it

April to October.

Life History

Nymphs of this species live in pools and margins of rivers and streams where they swim in short, darting bursts amongst the substrate, or climb amongst the vegetation. They feed by scraping algae from submerged stones and other structures, or by gathering or collecting fine particulate organic detritus from the sediment.

UK Status

Procloeon bifidum is found throughout the British Isles, although it appears to have a very localised distribution.

VC55 Status

Rare in Leicestershire and Rutland.

be our species champion

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map