Essex Field Club on Facebook

Visit Our Centre

EFC Centre at Wat Tyler Country ParkOur centre is available for visits on a pre-booked basis on Wednesdays between 10am - 4pm. The Club’s activities and displays are also usually open to the public on the first Saturday of the month 11am - 4pm.

About us

Video about the Club Essex Field Club video

registered charity
no 1113963
HLF Logo A-Z Page Index

Species Account for Hybomitra expollicata

previous species | next species

Hybomitra expollicata  (Pandellé, 1883)
Diptera: Larger Brachycera: Tabanidae

Maps produced by MapMate®. Data overlays Copyright © Essex Field Club 2024.
Reproduction for study and non-profit use permitted, all other rights reserved.

Taxonomic group: soldier flies and allies (Diptera: Larger Brachycera) - County data

Why not become a member

View time series maps for Hybomitra expollicata

Missing records?

member log-on for taxon report

Status: NR

Essex RDB: Listed
Threat: Regionally Important
Records: 22
First Record: 1969
Latest Record: 2022

1992-on hectads: 5
Pre-1992 hectads: 4
Total hectads: 7

Additional Phenology Data


sorry, no pictures available for this species yet - if you have an image please upload it

Please report any problems with this record:
VC error
GR error
Taxon ID suspect
Structural habitat suspect
Other problems, please explain here:


Species text
This horsefly is recorded from only 7 sites since 1900 in Dorset, Sussex, Kent and Essex. The status has been revised from RDB1 (Shirt 1987). Most of the records are recent and there is no doubt that this species is very local within high grade sites. Its habitat is brackish coastal levels with ditches; possibly saltmarsh at Studland (Dorset) and some Essex sites. The larvae probably develop in damp soil and the marginal zones of saline ponds and ditches. Its Essex populations are under particular threat from rising sea levels. Falk (1991a) states that a high, stable water level should be maintained and rotational ditch management employed on coastal levels if necessary, to ensure a continuous supply of potential breeding sites. Maintain the presence and salinity levels of any brackish pools or ditches on the seaward side of the marsh, which may possibly support the larvae, and maintain any transition of salinity across the marsh. Retain animal grazing in the vicinity of potential breeding sites. There are few known sites in Essex: Hadleigh (1969), Langenhoe Marsh (1983), Tollesbury Wick Marshes (1983; 2004), Copthall Saltings (1988), Old Hall Marshes (1983), Fobbing Marshes (2005 and West Canvey Marshes (2006). References

Species text last edited on Tue Mar 20th 2007 by user 3


Broad Habitat Data (based on 5 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 5 records with structural habitat information)

Habitat Detail and Method (based on 22 records with habitat detail and method information)

Recorded management for locations with Hybomitra expollicata

Recorded substrate and hydrology for locations with Hybomitra expollicata

Why not join the Club, register and add a new species page
Interpretation of distribution maps