The following is a list of the larger Brachycera recorded in Britain, this includes the soldierflies and their allies.^[1]

Family Xylophagidae

• Xylophagus ater - common awl-fly
• Xylophagus cinctus - red-belted awl-fly
• Xylophagus junki - Glenmore awl-fly

Family Athericidae

• Atherix ibis - yellow-legged water-snipefly
• Atherix marginata - black-legged water-snipefly
• Atrichops crassipes - least water-snipefly

Family Rhagionidae

• Chrysopilus asiliformis - little snipefly
• Chrysopilus cristatus - black snipefly
• Chrysopilus erythrophthalmus - silver-banded snipefly
• Chrysopilus laetus - tree snipefly
• Ptiolina nigra - pale-fringed moss-snipefly
• Ptiolina obscura - black-fringe moss-snipefly
• Rhagio annulatus - wood snipefly
• Rhagio lineola - small fleck-winged snipefly
• Rhagio notatus - large fleck-winged snipefly
• Rhagio scolopaceus - downlooker snipefly
• Rhagio strigosus - yellow downlooker snipefly
• Rhagio tringarius - marsh snipefly
• Spania nigra - liverwort snipefly
• Symphoromyia crassicornis - moorland snipefly
• Symphoromyia immaculata - limestone snipefly

Family Tabanidae

Subfamily Chrysopsinae

• Chrysops caecutiens - splayed deerfly
• Chrysops relictus - twin-lobed deerfly
• Chrysops sepulcralis - black deerfly
• Chrysops viduatus - square-spot deerfly

Subfamily Tabaninae

• Haematopota bigoti - big-spotted cleg
• Haematopota crassicornis - black-horned cleg
• Haematopota grandis - long-horned cleg
• Haematopota pluvialis - horse fly[1], cleg fly or cleg[2][3], sometimes notch-horned cleg[4]
• Haematopota subcylindrica - Levels cleg
• Atylotus fulvus - golden horsefly
• Atylotus latistriatus - saltmarsh horsefly
• Atylotus plebeius - Cheshire horsefly
• Atylotus rusticus - four-lined horsefly
• Hybomitra bimaculata - hairy-legged horsefly
• Hybomitra ciureai - Levels yellow-horned horsefly
• Hybomitra distinguenda - bright horsefly
• Hybomitra expollicata - striped horsefly
• Hybomitra lurida - broad-headed horsefly
• Hybomitra micans - black-legged horsefly
• Hybomitra montana - slender-horned horsefly
• Hybomitra muehlfeldi - broadland horsefly
• Hybomitra solstitialis - scarce forest horsefly
• Tabanus autumnalis - large marsh horsefly
• Tabanus bovinus - pale giant horsefly
• Tabanus bromius - band-eyed brown horsefly
• Tabanus cordiger - plain-eyed grey horsefly
• Tabanus glaucopsis - downland horsefly
• Tabanus maculicornis - narrow-winged horsefly
• Tabanus miki - plain-eyed brown horsefly
• Tabanus sudeticus - dark giant horsefly

Family Xylomyidae

• Solva marginata - drab wood-soldierfly
• Solva varia (Meigen, 1820)^[2]
• Xylomya maculata - wasp wood-soldierfly

Family Stratiomyidae

Subfamily Beridinae

• Beris chalybata - murky-legged black legionnaire
• Beris clavipes - scarce orange legionnaire
• Beris fuscipes - short-horned black legionnaire
• Beris geniculata - long-horned black legionnaire
• Beris morrisii - yellow-legged black legionnaire
• Beris vallata - common orange legionnaire
• Chorisops nagatomii - bright four-spined legionnaire
• Chorisops tibialis - dull four-spined legionnaire

Subfamily Clitellariinae

• Clitellaria ephippium

Subfamily Nemotelinae

• Nemotelus nigrinus - all-black snout
• Nemotelus notatus - flecked snout
• Nemotelus pantherinus - fen snout
• Nemotelus uliginosus - barred snout

Subfamily Pachygastrinae

• Eupachygaster tarsalis - sarce black
• Neopachygaster meromelaena - silver-strips black
• Pachygaster atra - dark-winged black
• Pachygaster leachii - yellow-legged black
• Zabrachia tenella - pine black

Subfamily Sarginae

• Chloromyia formosa - broad centurion
• Microchrysa cyaneiventris - black gem
• Microchrysa flavicornis - green gem
• Microchrysa polita - black-horned gem
• Sargus bipunctatus - twin-spot centurion
• Sargus cuprarius - clouded centurion
• Sargus flavipes - yellow-legged centurion
• Sargus iridatus - iridescent centurion

Subfamily Stratiomyinae

Tribe Oxycerini

• Oxycera analis - dark-winged soldier
• Oxycera dives - round-spotted major
• Oxycera fallenii - Irish major
• Oxycera leonina - twin-spotted major
• Oxycera morrisii - white-barred soldier
• Oxycera nigricornis - delicate soldier
• Oxycera pardalina - hill soldier
• Oxycera pygmaea - pygmy soldier
• Oxycera rara - four-barred major
• Oxycera terminata - yellow-tipped soldier
• Oxycera trilineata - three-lined soldier
• Vanoyia tenuicornis - long-horned soldier

Tribe Stratiomyini

• Odontomyia angulata - orange-horned green colonel
• Odontomyia argentata - silver colonel
• Odontomyia hydroleon - barred green colonel
• Odontomyia ornata - ornate brigadier
• Odontomyia tigrina - black colonel
• Oplodontha viridula - common green colonel
• Stratiomys chamaeleon - clubbed general
• Stratiomys longicornis - long-horned general
• Stratiomys potamida - banded general
• Stratiomys singularior - flecked general

Family Acroceridae

• Ogcodes gibbosus - smart-banded hunchback
• Ogcodes pallipes - black-rimmed hunchback
• Paracrocera orbiculus - top-horned hunchback

Family Bombyliidae

Subfamily Bombyliinae

• Bombylius canescens - western bee-fly
• Bombylius discolor - dotted bee-fly
• Bombylius major - dark-edged bee-fly
• Bombylius minor - heath bee-fly

Subfamily Exoprosopinae

• Thyridanthrax fenestratus - mottled bee-fly
• Villa cingulata - downland villa
• Villa modesta - dune villa
• Villa venusta - heath villa

Subfamily Phthiriinae

• Phthiria pulicaria - flea bee-fly

Family Therevidae

• Acrosathe annulata - coastal silver-stiletto
• Cliorismia rustica - southern silver-stiletto
• Dialineura anilis - swollen silver-stiletto
• Pandivirilia melaleuca - forest silver-stiletto
• Spiriverpa lunulata - northern silver-stiletto
• Thereva cinifera - large plain stiletto
• Thereva fulva - small plain stiletto
• Thereva handlirschi - golden Scottish stiletto
• Thereva inornata - light Scottish stiletto
• Thereva nobilitata - common stiletto
• Thereva plebeja - crochet-hooked stiletto
• Thereva strigata - cliff stiletto
• Thereva unica - twin-spot stiletto synonym bipunctata
• Thereva valida - dark northern stiletto

Family Scenopinidae

• Scenopinus fenestralis - house windowfly
• Scenopinus niger - forest windowfly

Family Asilidae

Subfamily Asilinae

• Asilus crabroniformis - hornet robberfly
• Dysmachus trigonus - fan-bristled robberfly
• Eutolmus rufibarbis - golden-tabbed robberfly
• Machimus arthriticus - breck robberfly
• Machimus atricapillus - kite-tailed robberfly
• Machimus cingulatus - brown heath robberfly
• Machimus cowini - Manx robber fly
• Machimus rusticus - downland robberfly
• Neoitamus cothurnatus - scarce awl robberfly
• Neoitamus cyanurus - common awl robberfly
• Neomochtherus pallipes - Devon red-legged robberfly
• Pamponerus germanicus - pied-winged robberfly
• Philonicus albiceps - dune robberfly
• Rhadiurgus variabilis - northern robberfly

Subfamily Dasypogoninae

• Leptarthrus brevirostris - slender-footed robberfly
• Leptarthrus vitripennis - false slender-footed robberfly

Subfamily Laphriinae

• Choerades gilvus - ginger robberfly
• Choerades marginata - golden-haired robberfly
• Laphria flava - bumblebee robberfly

Subfamily Leptogastrinae

• Leptogaster cylindrica - striped slender robberfly
• Leptogaster guttiventris - dashed slender robberfly

Subfamily Stenopogoninae

• Dioctria atricapilla - violet black-legged robberfly
• Dioctria baumhaueri - stripe-legged robberfly
• Dioctria cothurnata - scarce red-legged robberfly
• Dioctria linearis - small yellow-legged robberfly
• Dioctria oelandica - orange-legged robberfly
• Dioctria rufipes - common red-legged robberfly
• Lasiopogon cinctus - spring heath robberfly