Diptera species listed on the Biodiversity Action Plan (BAP)
35 species of Diptera are listed on the BAP as of Autumn 2007:
| Species | Common name | Family |
|---|---|---|
| Amiota variegata | The Spotty Sap Fly | Drosophilidae |
| Asilus crabroniformis | Hornet Robberfly | Asilidae |
| Asindulum nigrum | Fen Flower Gnat | Keroplatidae |
| Blera fallax | Pine Hoverfly | Syrphidae |
| Bombylius minor | Heath bee-fly | Bombyliidae |
| Botanophila fonsecai | Fonseca's Dune Fly | Anthomyiidae |
| Callicera spinolae | Golden Hoverfly | Syrphidae |
| Campsicnemus magius | Fancy-legged Fly | Dolichopodidae |
| Chrysotoxum octomaculatum | Broken-banded Wasp-hoverfly | Syrphidae |
| Cliorismia rustica | Southern Silver Stiletto-fly | Therevidae |
| Clusiodes geomyzinus | Pine Heart-Wood Fly | Clusiidae |
| Dolichopus laticola | Broads Dolly-Fly | Dolichopodidae |
| Dolichopus nigripes | Black-footed Dolly-Fly | Dolichopodidae |
| Doros profuges | Phantom Hoverfly | Syrphidae |
| Dorycera graminum | Phoenix Fly | Ulidiidae |
| Dorylomorpha clavifemora | Clubbed Big-headed Fly | Pipunculidae |
| Empis limata | The Borders Dance-Fly | Empididae |
| Eristalis cryptarum | Bog hoverfly | Syrphidae |
| Gnophomyia elsneri | Royal Cranefly | Limoniidae |
| Hammerschmidtia ferruginea | Aspen Hoverfly | Syrphidae |
| Idiocera sexguttata | Six-spotted Cranefly | Limoniidae |
| Lipara similis | Least Cigar-Gall Fly | Chloropidae |
| Lipsothrix ecucullata | Scottish Yellow Splinter | Limoniidae |
| Lipsothrix errans | Northern Yellow Splinter | Limoniidae |
| Lipsothrix nervosa | Southern Yellow Splinter | Limoniidae |
| Lipsothrix nigristigma | Scarce Yellow Splinter | Limoniidae |
| Lonchaea ragnari | The Large Birch Lance Fly | Lonchaeidae |
| Myolepta potens | Western Wood-vase Hoverfly | Syrphidae |
| Neoempheria lineola | Giant Wood-gnat | Mycetophilidae |
| Odontomyia hydroleon | Barred Green Colonel | Stratiomyidae |
| Phaonia jaroschewskii | Hairy Canary Fly | Muscidae |
| Rhabdomastix japonica | A River-shore Cranefly | Limoniidae |
| Rhamphomyia hirtula | Mountain Dance-Fly | Empididae |
| Salticella fasciata | Dune Snail-killing Fly | Sciomyzidae |
| Thyridanthrax fenestratus | Mottled Bee-fly | Bombyliidae |
