Species Detail - Nematus alniastri - Species information displayed is based on the dataset "Sawflies of Ireland".
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of records recorded within each 10km grid square (ITM).Marine Map - 50km
Marine Map - 50km
Distribution of the number of records recorded within each 50km grid square (WGS84).
Nematus alniastri
N/A
NHMSYS0021240593
RecommendedWell-formed
Craesus alniastri (Scharfenberg, 1805), Craesus alniastri (Scarfenberg, 1805), Croesus varus (Villaret), Nematus varus Villaret, 1832, Tenthredo alniastri Scharfenberg, 1805
N/A
N/A
(Scharfenberg, 1805)
Insect - hymenopteran
Species
14
7
4
21/06/2016
01/10/2024
21 June (recorded in 2016)
21 October (recorded in 2022)
Collated by the National Biodiversity Data Centre from different sources, Sawflies of Ireland, National Biodiversity Data Centre, Ireland, Nematus alniastri, accessed 13 June 2025, <https://maps.biodiversityireland.ie/Dataset/301/Species/304823>