Taxonomy

Perla bipunctata

Distribution

Species Biology

Identification

Nymph identification: 1.1 to 33 mm in size.  Perlidae are identifiable by the thoracic gills, with P. bipunctata nymphs tending to be much lighter in colour than D. cephalotes.

Habitat

Fast flowing streams and rivers with stable substrata.

Life cycle

This species has a merovoltine life history, taking an estimated three years to complete its life cycle. Adult flight period is from April to July and nymphs are present all year.

Distribution

World distribution(GBIF)

Irish distribution

Common and widespread especially in south, west and north west. Has bee recorded from 202 10km squares in Ireland.

Temporal change

Records submitted to Data Centre in 2020

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References

Publications

H.B. Feeley, J-R. Baars & M. Kelly-Quinn (2016) The Stonefly (Plecoptera) of Ireland –
Distribution, Life Histories & Ecology
. National Biodiversity Data Centre, Waterford. Ireland.

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