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

One-grooved Diving Beetle

Bidessus unistriatus

(Goeze, 1777)

National assessment

Unassessed

Local assessment

Extinct

Associated assemblage

open water on disturbed mineral sediments 39 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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Something missing?

If you've seen this species and want to report a sighting, head over to iRecord. If you're able to provide more context on the status in Greater Lincolnshire, habitat requirements or other information get in touch.

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.

Threatened species recovery actions

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

Habitat management

Subject to discussion with local experts and land owner agreement, consider management of Crockford Bridge marl pit complex to restore further ponds to create warm, sunlit, shallow muddy margins with short/patchy vegetation. The recent survey report describes most of the ponds as over-shaded.

Scientific research

Review findings of any survey work undertaken towards UK SAP and more recent New Forest survey; identify and implement any practical conservation recommendations. This review may also identify gaps in survey coverage and gaps in knowledge of the species' conservation requirements, which could be addressed in future reviews.

References

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). Bidessus unistriatus (Goeze, 1777) 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=NBNORG0000087586 (Accessed 08 November 2025).