Extinct

This species is considered to be extinct in Greater Lincolnshire.

Key action species

This species has been identified in the Threatened Species Recovery Actions - 2025 Baseline, published by Natural England, as having key actions which can help recover populations or prevent further loss.

View actions

Lesser Silver Water Beetle

Hydrochara caraboides

(Linnaeus, 1758)

National assessment

Unassessed

Local assessment

Extinct

Associated assemblage

reed-fen 107 other species in this assemblage

Statistics

Occurrences

0 since 2000 1 all time

Occupied 1 km squares

0 since 2000 0 all time

Earliest occurrence

–

Latest occurrence

–

Distribution

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Occurrence since 1950

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This chart should not be relied upon for an indication of species status as variations in recording effort can heavily affect the count of occurrences and occupied 1km squares.

Associated habitats

Grazing marsh

Threatened species recovery actions

Actions from Threatened Species Recovery Actions 2025 Baseline published by Natural England.

(Re-)introduction

Study the feasibility of re-introducing Hydrochara caraboides to the Cambridgeshire Fens (e.g. at Wicken). This should include consultation with managers of both donor and recipient sites, a draft introduction protocol, assessment against IUCN criteria, monitoring proposals and cost estimates.

Advice & support

Advise site managers on the presence and requirements of this species in consideration of SSSI, nature reserve management, and other land management, especially pond restoration and water level control.

Site protection

Make an inventory of all protected sites with post-1980 records. Consider opportunities for listing this species as a site 'feature' (e.g. review of SSSI citations).

References

Buglife. "Coastal and floodplain grazing marsh" (Accessed 23rd October 2025) https://www.buglife.org.uk/resources/habitat-management/coastal-and-floodplain-grazing-marsh/

Webb, J., Heaver, D., Lott, D., Dean, H.J., van Breda, J., Curson, J., Harvey, M.C., Gurney, M., Roy, D.B., van Breda, A., Drake, M., Alexander, K.N.A. and Foster, G. (2017). Pantheon. [online] Available at: http://www.brc.ac.uk [05/02/2025].

Wilkins, T.C., Baker, T.G, Hipperson-Jervis, C. and Thompson, M. (2025). Threatened Species Recovery Actions 2025 Baseline Version 1.1 - Spreadsheet. Joint Publication JP065. Natural England and partners, UK. https://publications.naturalengland.org.uk/publication/6106216194113536

Data sources

Local species recorders

Cite this page

GLNP (2025). Hydrochara caraboides (Linnaeus, 1758) species profile, in Greater Lincolnshire Nature Partnership (ed.) Greater Lincolnshire species data bank. Available at: http://glincsson.glnp.org.uk/view?taxon_list_item_key=NBNORG0000010052 (Accessed 08 November 2025).