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.

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Hydrochus ignicollis

Motschulsky, 1860

National assessment

Unassessed

Local assessment

Data deficient

Associated assemblage

reed-fen 107 other species in this assemblage

Statistics

Occurrences

0 since 2000 8 all time

Occupied 1 km squares

0 since 2000 2 all time

Earliest occurrence

1986

Latest occurrence

1986

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.

Threatened species recovery actions

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

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.

Scientific research

Undertake a review of this species and other water beetles dependent on relict-fens in order to promote better understanding of their conservation requirements. Hydrochus ignicollis belongs to a suite of water beetles closely associated with remnant fens; others include Agabus striolatus, Dryops anglicanus, D. auriculatus, D. griseus, Helochares obscurus, Hydrochus brevis, H. megaphallus, Hydroporus elongatulus, H. glabriusculus, H. scalesianus, Laccornis oblongus and Limnebius aluta.

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

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). Hydrochus ignicollis Motschulsky, 1860 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=NBNORG0000010029 (Accessed 08 November 2025).