Species Detail - Hydronomus alismatis - Species information displayed is based on all datasets.

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Hydronomus alismatis
N/A
NBNSYS0000025307 RecommendedWell-formed
Threatened Species: Critically Endangered
hyali
(Marsham, 1802)
Insect - beetle (Coleoptera)
Species
15
13
12
31/12/1854
26/07/1971
1 June (recorded in 1909)
31 December (recorded in 1854)
National Biodiversity Data Centre, Ireland, Hydronomus alismatis, accessed 12 September 2025, <https://maps.biodiversityireland.ie/Species/67676>

Records per month (across all datasets)

Records per year (across all datasets)