Tipula oleracea
- Peak month
- May
- Records since 2000
- 4,355
- Group
- True flies
Pegoplata aestiva
- Peak month
- July
- Records since 2000
- 4,289
- Group
- True flies
Common Orange Legionnaire
- Peak month
- July
- Records since 2000
- 4,139
- Scientific name
- Beris vallata
Blotch-winged Hoverfly
- Peak month
- May
- Records since 2000
- 4,060
- Scientific name
- Leucozona lucorum
Chrysotus femoratus
- Peak month
- June
- Records since 2000
- 3,931
- Group
- True flies
Annulate Fungus Gnat
- Peak month
- August
- Records since 2000
- 3,911
- Scientific name
- Ctenosciara hyalipennis
Striped Slender Robberfly
- Peak month
- June
- Records since 2000
- 3,844
- Scientific name
- Leptogaster cylindrica
Snipe fly
- Peak month
- June
- Records since 2000
- 3,679
- Scientific name
- Rhagio tringaria
Hylemya vagans
- Peak month
- July
- Records since 2000
- 3,581
- Group
- True flies
Black-striped cranefly
- Peak month
- May
- Records since 2000
- 3,421
- Scientific name
- Tipula vernalis
Urban bluebottle blowfly, European blowfly
- Peak month
- April
- Records since 2000
- 3,361
- Scientific name
- Calliphora vicina
Murky-legged Black Legionnaire
- Peak month
- May
- Records since 2000
- 3,359
- Scientific name
- Beris chalybata
Pegoplata infirma
- Peak month
- July
- Records since 2000
- 3,287
- Group
- True flies
Philhelius pedissequum
- Peak month
- June
- Records since 2000
- 3,261
- Group
- True flies
Dark-winged Chrysogaster
- Peak month
- July
- Records since 2000
- 3,254
- Scientific name
- Chrysogaster solstitialis
Metriocnemus albolineatus
- Peak month
- September
- Records since 2000
- 3,129
- Group
- True flies
Austrolimnophila ochracea
- Peak month
- June
- Records since 2000
- 3,117
- Group
- True flies
Tiger Cranefly
- Peak month
- June
- Records since 2000
- 3,100
- Scientific name
- Nephrotoma flavescens
Small fleck-winged snipefly
- Peak month
- July
- Records since 2000
- 3,047
- Scientific name
- Rhagio lineola
Common Dainty
- Peak month
- May
- Records since 2000
- 2,957
- Scientific name
- Baccha elongata
Hover fly
- Peak month
- April
- Records since 2000
- 2,928
- Scientific name
- Cheilosia pagana
Black-horned Smoothtail
- Peak month
- July
- Records since 2000
- 2,911
- Scientific name
- Epistrophe grossulariae
Spotted Crane Fly
- Peak month
- May
- Records since 2000
- 2,905
- Scientific name
- Nephrotoma appendiculata
Stripe-backed Brusheye
- Peak month
- August
- Records since 2000
- 2,892
- Scientific name
- Dasysyrphus albostriatus
Bradysia placida
- Peak month
- March
- Records since 2000
- 2,873
- Group
- True flies
Smittia pratorum
- Peak month
- March
- Records since 2000
- 2,852
- Group
- True flies
American Thintail
- Peak month
- August
- Records since 2000
- 2,783
- Scientific name
- Meliscaeva cinctella
Botanophila fugax
- Peak month
- July
- Records since 2000
- 2,781
- Group
- True flies
Chaetocladius piger
- Peak month
- February
- Records since 2000
- 2,768
- Group
- True flies
Paraphaenocladius impensus
- Peak month
- October
- Records since 2000
- 2,755
- Group
- True flies
Dotted Bee-fly
- Peak month
- April
- Records since 2000
- 2,727
- Scientific name
- Bombylius discolor
Rhipidia maculata
- Peak month
- May
- Records since 2000
- 2,713
- Group
- True flies
Pouting Woodlouse-fly
- Peak month
- July
- Records since 2000
- 2,710
- Scientific name
- Rhinophora lepida
Psychoda trinodulosa
- Peak month
- July
- Records since 2000
- 2,668
- Group
- True flies
Clytocerus ocellaris
- Peak month
- June
- Records since 2000
- 2,664
- Group
- True flies
Fever Fly
- Peak month
- August
- Records since 2000
- 2,659
- Scientific name
- Dilophus febrilis
Little Snipefly
- Peak month
- July
- Records since 2000
- 2,646
- Scientific name
- Chrysopilus asiliformis
Pseudosmittia trilobata
- Peak month
- September
- Records since 2000
- 2,646
- Group
- True flies
Common Sedgesitter
- Peak month
- July
- Records since 2000
- 2,619
- Scientific name
- Platycheirus clypeatus
Tricyphona immaculata
- Peak month
- May
- Records since 2000
- 2,611
- Group
- True flies
Pomace fly
- Peak month
- July
- Records since 2000
- 2,587
- Scientific name
- Scaptomyza pallida
Opomyza germinationis
- Peak month
- June
- Records since 2000
- 2,572
- Group
- True flies
Culicoides impunctatus
- Peak month
- July
- Records since 2000
- 2,552
- Group
- True flies
Phaonia tuguriorum
- Peak month
- July
- Records since 2000
- 2,549
- Group
- True flies
Syrphus vitripennis
- Peak month
- August
- Records since 2000
- 2,549
- Group
- True flies
Hairy-eyed Flower Fly
- Peak month
- April
- Records since 2000
- 2,543
- Scientific name
- Syrphus torvus
Cheilosia morio
- Peak month
- August
- Records since 2000
- 2,521
- Group
- True flies
Soldier Fly
- Peak month
- May
- Records since 2000
- 2,495
- Scientific name
- Microchrysa polita