# List of water beetle species recorded in Britain
## Suborder Adephaga

Note: the family Carabidae (ground beetles), is also part of this suborder; a list of these is at List of ground beetle (Carabidae) species recorded in Britain.

### Family Gyrinidae

* Gyrinus aeratus
* Gyrinus caspius
* Gyrinus distinctuss
* Gyrinus marinus
* Gyrinus minutus
* Gyrinus natator
* Gyrinus opacus
* Gyrinus paykulli
* Gyrinus substriatus
* Gyrinus suffriani
* Gyrinus urinator
* Orectochilus villosus — hairy whirligig beetle

### Family Haliplidae

* Brychius elevatus
* Peltodytes caesus
* Haliplus confinis
* Haliplus obliquus
* Haliplus varius
* Haliplus lineatocollis
* Haliplus apicalis
* Haliplus fluviatilis
* Haliplus furcatus
* Haliplus heydeni
* Haliplus immaculatus
* Haliplus lineolatus
* Haliplus ruficollis
* Haliplus sibiricus
* Haliplus flavicollis
* Haliplus fulvus
* Haliplus laminatus
* Haliplus mucronatus
* Haliplus variegatus

### Family Noteridae

* Noterus clavicornis
* Noterus crassicornis

### Family Paelobiidae

* Hygrobia hermanni

### Family Dytiscidae

* Agabus arcticus
* Agabus congener
* Agabus sturmii
* Agabus labiatus
* Agabus uliginosus
* Agabus undulatus
* Agabus affinis
* Agabus biguttatus
* Agabus bipustulatus
* Agabus brunneus
* Agabus conspersus
* Agabus didymus
* Agabus guttatus
* Agabus melanarius
* Agabus nebulosus
* Agabus paludosus
* Agabus striolatus
* Agabus unguicularis
* Ilybius aenescens
* Ilybius ater
* Ilybius chalconatus
* Ilybius fenestratus
* Ilybius fuliginosus
* Ilybius guttiger
* Ilybius montanus
* Ilybius quadriguttatus
* Ilybius subaeneus
* Ilybius wasastjernae
* Platambus maculatus
* Colymbetes fuscus
* Rhantus grapii
* Rhantus bistriatus
* Rhantus exsoletus
* Rhantus frontalis
* Rhantus suturalis
* Rhantus suturellus
* Liopterus haemorrhoidalis
* Acilius canaliculatus
* Acilius sulcatus
* Graphoderus bilineatus
* Graphoderus cinereus
* Graphoderus zonatus
* Cybister lateralimarginalis
* Dytiscus circumcinctus
* Dytiscus circumflexus
* Dytiscus dimidiatus
* Dytiscus lapponicus
* Dytiscus marginalis - great diving beetle
* Dytiscus semisulcatus
* Hydaticus continentalis
* Hydaticus seminiger
* Hydaticus transversalis
* Bidessus minutissimus
* Bidessus unistriatus
* Hydroglyphus geminus
* Deronectes latus
* Graptodytes bilineatus
* Graptodytes flavipes
* Graptodytes granularis
* Graptodytes pictus
* Hydroporus angustatus
* Hydroporus discretus
* Hydroporus elongatulus
* Hydroporus erythrocephalus
* Hydroporus ferrugineus
* Hydroporus glabriusculus
* Hydroporus gyllenhalii
* Hydroporus incognitus
* Hydroporus longicornis
* Hydroporus longulus
* Hydroporus marginatus
* Hydroporus melanarius
* Hydroporus memnonius
* Hydroporus morio
* Hydroporus necopinatus
* Hydroporus neglectus
* Hydroporus nigrita
* Hydroporus obscurus
* Hydroporus obsoletus
* Hydroporus palustris
* Hydroporus planus
* Hydroporus pubescens
* Hydroporus rufifrons
* Hydroporus scalesianus
* Hydroporus striola
* Hydroporus tessellatus
* Hydroporus tristis
* Hydroporus umbrosus
* Nebrioporus assimilis
* Nebrioporus depressus
* Nebrioporus elegans
* Nebrioporus canaliculatus
* Oreodytes alpinus
* Oreodytes davisii
* Oreodytes sanmarkii
* Oreodytes septentrionalis
* Porhydrus lineatus
* Scarodytes halensis
* Stictonectes lepidus
* Stictotarsus duodecimpustulatus
* Stictotarsus multilineatus
* Suphrodytes dorsalis
* Hydrovatus clypealis
* Hygrotus confluens
* Hygrotus impressopunctatus
* Hygrotus nigrolineatus
* Hygrotus novemlineatus
* Hygrotus parallelogrammus
* Hygrotus decoratus
* Hygrotus inaequalis
* Hygrotus quinquelineatus
* Hygrotus versicolor
* Hyphydrus ovatus
* Laccornis oblongus
* Laccophilus hyalinus
* Laccophilus minutus
* Laccophilus poecilus

## Suborder Polyphaga
### Infraorder Elateriformia
#### Superfamily Byrrhoidea
##### Family Elmidae

* Elmis aenea
* Esolus parallelepipedus
* Limnius volckmari
* Macronychus quadrituberculatus
* Normandia nitens
* Oulimnius major
* Oulimnius rivularis
* Oulimnius troglodytes
* Oulimnius tuberculatus
* Riolus cupreus
* Riolus subviolaceus
* Stenelmis canaliculata

##### Family Dryopidae

* Pomatinus substriatus
* Dryops anglicanus
* Dryops auriculatus
* Dryops ernesti
* Dryops griseus
* Dryops luridus
* Dryops similaris
* Dryops striatellus
* Dryops nitidulus

##### Family Limnichidae

* Limnichus pygmaeus

### Infraorder Staphyliniformia
#### Superfamily Hydrophiloidea
##### Family Helophoridae

* Helophorus nubilus
* Helophorus porculus
* Helophorus rufipes
* Helophorus tuberculatus
* Helophorus alternans
* Helophorus aequalis
* Helophorus grandis
* Helophorus arvernicus
* Helophorus brevipalpis
* Helophorus dorsalis
* Helophorus flavipes
* Helophorus fulgidicollis
* Helophorus granularis
* Helophorus griseus
* Helophorus laticollis
* Helophorus longitarsis
* Helophorus minutus
* Helophorus nanus
* Helophorus obscurus
* Helophorus strigifrons

##### Family Georissidae

* Georissus crenulatus

##### Family Hydrochidae

* Hydrochus angustatus
* Hydrochus brevis
* Hydrochus crenatus
* Hydrochus elongatus
* Hydrochus ignicollis
* Hydrochus megaphallus
* Hydrochus nitidicollis

##### Family Spercheidae

* Spercheus emarginatus

##### Family Hydrophilidae

* Anacaena bipustulata
* Anacaena globulus
* Anacaena limbata
* Anacaena lutescens
* Paracymus aeneus
* Paracymus scutellaris
* Berosus affinis
* Berosus luridus
* Berosus signaticollis
* Berosus fulvus
* Chaetarthria seminulum
* Chaetarthria simillima
* Cymbiodyta marginellus
* Enochrus affinis
* Enochrus bicolor
* Enochrus coarctatus
* Enochrus fuscipennis
* Enochrus halophilus
* Enochrus melanocephalus
* Enochrus nigritus
* Enochrus ochropterus
* Enochrus quadripunctatus
* Enochrus testaceus
* Helochares lividus
* Helochares obscurus
* Helochares punctatus
* Hydrobius fuscipes
* Limnoxenus niger
* Hydrochara caraboides - lesser silver water beetle
* Hydrophilus piceus - great silver water beetle
* Laccobius atratus
* Laccobius bipunctatus
* Laccobius colon
* Laccobius minutus
* Laccobius obscuratus
* Laccobius simulatrix
* Laccobius sinuatus
* Laccobius striatulus
* Laccobius ytenensis
* Coelostoma orbiculare
* Dactylosternum abdominale
* Cercyon alpinus
* Cercyon bifenestratus
* Cercyon convexiusculus
* Cercyon depressus
* Cercyon granarius
* Cercyon haemorrhoidalis
* Cercyon impressus
* Cercyon laminatus
* Cercyon lateralis
* Cercyon littoralis
* Cercyon marinus
* Cercyon melanocephalus
* Cercyon nigriceps
* Cercyon obsoletus
* Cercyon pygmaeus
* Cercyon quisquilius
* Cercyon sternalis
* Cercyon terminatus
* Cercyon tristis
* Cercyon unipunctatus
* Cercyon analis
* Cercyon ustulatus
* Megasternum concinnum
* Cryptopleurum crenatum
* Cryptopleurum minutum
* Cryptopleurum subtile
* Sphaeridium bipustulatum
* Sphaeridium lunatum
* Sphaeridium marginatum
* Sphaeridium scarabaeoides

#### Superfamily Staphylinoidea
##### Family Hydraenidae

* Hydraena britteni
* Hydraena flavipes
* Hydraena gracilis
* Hydraena nigrita
* Hydraena palustris
* Hydraena pulchella
* Hydraena pygmaea
* Hydraena riparia
* Hydraena rufipes
* Hydraena testacea
* Limnebius aluta
* Limnebius crinifer
* Limnebius nitidus
* Limnebius papposus
* Limnebius truncatellus
* Enicocerus exsculptus
* Ochthebius auriculatus
* Ochthebius bicolon
* Ochthebius dilatatus
* Ochthebius aeneus
* Ochthebius lejolisii
* Ochthebius minimus
* Ochthebius difficilis
* Ochthebius nanus
* Ochthebius poweri
* Ochthebius punctatus
* Ochthebius lenensis
* Ochthebius marinus
* Ochthebius pusillus
* Ochthebius viridis
* Aulacochthebius exaratus