Species Biology
Identification
Nymph identification: Nymphs, 0.8 to 10 mm, will have long fine hairs at the anterior and posterior ends on both sides of the pronotum which is in contrast to S. torrentium which has hairs along the entire lateral margin on both sides. Additionally, it has a Y like structure between its eyes whereas S. torrentium has a V like structure.
Habitat
Only found in stony rivers and stream.
Life cycle
It is semivoltine, taking more than one year to complete its life cycle. Nymphs are present all year, and adults fly from May to July.
Distribution
World distribution(GBIF)
Irish distribution
Common with a relatively wide distribution range in Ireland, with the majority of records in the southern half of the island. Has been recorded from 106 10km squares in Ireland.
Temporal change
Records submitted to Data Centre in 2024
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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.