Fan-bristled Robberfly

Dysmachus trigonus

(Meigen, 1804)

National assessment

Unassessed

Local assessment

Data deficient

Associated assemblage

bare sand and chalk 390 other species in this assemblage

Statistics

Occurrences

42 since 2000 71 all time

Occupied 1 km squares

22 since 2000 33 all time

Earliest occurrence

1886

Latest occurrence

2023

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.

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].

Data sources

Local species recorders

Lapwings Consultants.

Lincolnshire Wildlife Trust.

Natural Resources Wales. Welsh Invertebrate Database (WID). Licenced under OGL http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3.

Soldierflies and Allies Recording Scheme. Soldierflies and Allies Recording Scheme - data verified via iRecord. Licenced under CC-BY https://creativecommons.org/licenses/by/4.0.

Cite this page

GLNP (2025). Dysmachus trigonus (Meigen, 1804) 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=NBNORG0000010159 (Accessed 08 November 2025).