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Species · True flies

Large Marsh Horsefly

Tabanus autumnalis

765Records since 2000
JulyPeak month
58Counties with records

When it is recorded

Jan0
Feb0
Mar0
Apr0
May24
Jun273
Jul340
Aug91
Sep4
Oct0
Nov0
Dec0

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Norfolk England77
2Essex England55
3Cambridgeshire England47
4Kent England40
5Surrey England28
6Devon England28
7Suffolk England27
8Dorset England24
9Cornwall England17
10Worcestershire England16
11Carmarthenshire Wales16
12Gloucestershire England14
13Thurrock England14
14Lincolnshire England12
15Somerset England10
679 England79 Wales

Records per county (GADM level 2) and per nation; one record can count towards several areas. 58 counties in all.

About this species

Records since 2000
765
Peak month
July
Counties with records
58
Scientific name
Tabanus autumnalis
Group
True flies
NBN Atlas records since 2000
742
Most recorded in
Norfolk, Essex
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Diptera
Family
Tabanidae
Genus
Tabanus
Name with authority
Tabanus autumnalis Linnaeus, 1761
Described
1761
Contributing datasets
13

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q1617236 · GBIF 1499769