Colymbetes dahuricus female
 
Agabus ajax male
 
Agabus vancouverensis
 
Hygrotus obscureplagiatus female
 
Hydroporus columbianus female
 
Coptotomus longulus male
 
Dytiscus circumcinctus female
 
Hydroporus larsoni
 
Hydaticus aruspex male
 
Acilius semisulcatus female
 
Agabus coxalis
 
Sanfilippodytes terminalis
 
Colymbetes dahuricus male
 
Dytiscus marginicollis female
 
Hygrotus sayi
 
Hygrotus obscureplagiatus male
 
Agabus erichsoni
 
Coptotomus longulus female
 
Hygrotus picatus
 
Dytiscus circumcinctus male
 
Oreodytes laevis
 
Hydroporus despectus
 
Agabus anthracinus
 
Hydroporus columbianus male
 
Carrhydrus crassipes
 
Hydroporus signatus
 
Hygrotus impressopunctatus
 
Hydroporus lapponum
 
Ilybius churchillensis
 
Agabus ajax female
 
Agabus lutosus female
 
Hygrotus intermedius
 
Nebrioporus depressus
 
Hygrotus semivittatus
 
Colymbetes sculptilis female
 
Acilius abbreviatus male
 
Hydroporus striola
 
Ilybius fraterculus
 
Hydroporus rufinasus
 
Hydroporus fortis
 
Agabus tristis
 
Dytiscus hatchi female
 
Agabus infuscatus
 
Stictotarsus spenceri
 
Ilybius quadrimaculatus
 
Agabus leptapsis male
 
Graphoderus occidentalis female
 
Agabus lutosus female
 
Agabus semipunctatus
 
Rhantus suturellus male
 
Dytiscus marginicollis male
 
Rhantus wallisi male
 
Stictotarsus griseostriatus
 
Agabus lutosus male
 
Agabus smithi
 
Dytiscus cordieri male
 
Graphoderus perplexus female
 
Agabus discolor male
 
Hygrotus intermedius
 
Hydroporus columbianus male
 
Hygrotus dissimilis
 
Hydroporus tademus female
 
Rhantus gutticollis
 
Hygrotus suturalis
 
Hydroporus puberulus
 
Neoporus undulatus
 
Rhantus sericans
 
Colymbetes densus male
 
Rhantus suturellus female
 
Laccornis pacificus
 
Nebrioporus macronychus
 
Hygrotus lutescens male
 
Colymbetes sculptilis female
 
Oreodytes picturatus
 
Agabus audeni
 
Agabus moestus male
 
Hygrotus sellatus
 
Acilius abbreviatus female
 
Hydroporus rectus
 
Acilius semisulcatus male
 
Hydroporus polaris
 
Ilybius picipes
 
Hydroporus nigellus
 
Neoporus superioris
 
Agabus discors male
 
Sanfilippodytes pseudovilis
 
Desmopachria convexa
 
Hydroporus notabilis
 
Dytiscus dauricus male
 
Hygrotus unguicularis
 
Agabus phaeopterus
 
Dytiscus dauricus male
 
Hydroporus appalachius
 
Ilybius picipes
 
Agabus discors male
 
Hydroporus transpunctatus
 
Oreodytes picturatus
 
Hydroporus occidentalis
 
Colymbetes exaratus female
 
Neoclypeodytes ornatellus
 
Oreodytes alaskanus
 
Ilybius discedens
 
Nebrioporus depressus
 
Agabus wasastjernae
 
Agabus smithi
 
Agabus canadensis
 
Dytiscus circumcinctus female
 
Agabus hypomelas female
 
Oreodytes obesus cordillerensis
 
Agabus discolor female
 
Dytiscus alaskanus male
 
Agabus ambiguus
 
Hydaticus aruspex female
 
Hydaticus aruspex male
 
Laccophilus biguttatus
 
Hygrotus suturalis
 
Agabus clavicornis
 
Hygrotus compar
 
Agabus fuscipennis
 
Agabus oblongulus
 
Ilybius subaeneus
 
Hydroporus notabilis
 
Ilybius vittiger
 
Dytiscus alaskanus female
 
Hygrotus nigrescens
 
Oreodytes scitulus scitulus
 
Agabus thomsoni
 
Agabus leptapsis female
 
Sanfilippodytes pseudovilis
 
Agabus mackenziensis male
 
Agabus obliteratus female
 
Rhantus binotatus
 
Hydroporus despectus
 
Dytiscus cordieri female
 
Rhantus wallisi female
 
Rhantus binotatus
 
Stictotarsus spenceri
 
Rhantus wallisi female
 
Agabus confinis female
 
Agabus strigulosus
 
Hydroporus sinuatipes
 
Graphoderus liberus
 
Agabus moestus female
 
Acilius athabascae
 
Agabus hypomelas female
 
Graphoderus perplexus male
 
Hydroporus tenebrosus
 
Neoscutopterus augustus female
 
Dytiscus alaskanus female
 
Hygrotus marklini
 
Acilius semisulcatus male
 
Hygrotus semivittatus
 
Neoporus superioris
 
Ilybius picipes
 
Hydroporus nigellus
 
Laccornis pacificus
 
Hydroporus polaris
 
Hygrotus lutescens male
 
Rhantus suturellus female
 
Laccornis pacificus
 
Rhantus sericans
 
Hydroporus puberulus
 
Hydroporus rectus
 
Acilius abbreviatus female
 
Hygrotus sellatus
 
Agabus audeni
 
Oreodytes picturatus
 
Colymbetes sculptilis female
 
Agabus discolor male
 
Graphoderus perplexus female
 
Dytiscus cordieri male
 
Agabus smithi
 
Agabus antennatus
 
Hygrotus infuscatus
 
Hydroporus tademus female
 
Rhantus suturellus male
 
Agabus semipunctatus
 
Agabus lutosus female
 
Agabus leptapsis male
 
Rhantus suturellus female
 
Ilybius quadrimaculatus
 
Hydroporus dentellus
 
Agabus lutosus male
 
Stictotarsus griseostriatus
 
Rhantus wallisi male
 
Hydroporus striola
 
Ilybius fraterculus
 
Acilius abbreviatus male
 
Hygrotus semivittatus
 
Nebrioporus depressus
 
Hygrotus intermedius
 
Ilybius churchillensis
 
Agabus ajax female
 
Hygrotus impressopunctatus
 
Hygrotus punctilineatus
 
Agabus canadensis
 
Dytiscus hatchi female
 
Agabus tristis
 
Dytiscus marginicollis male
 
Hydroporus fortis
 
Hydroporus rufinasus
 
Hydroporus columbianus male
 
Agabus anthracinus
 
Oreodytes laevis
 
Coptotomus longulus female
 
Ilybius vittiger
 
Hydroporus larsoni
 
Stictotarsus striatellus
 
Colymbetes dahuricus male
 
Hydroporus morio
 
Sanfilippodytes terminalis
 
Hygrotus patruelis
 
Agabus coxalis
 
Hydroporus sibiricus
 
Acilius semisulcatus female
 
Hygrotus obscureplagiatus male
 
Hydroporus rectus
 
Hygrotus sayi
 
Hygrotus sellatus
 
Oreodytes congruus
 
Agabus ajax male
 
Colymbetes dahuricus female
 
Agabus bifarius
 
Agabus pisobius female
 
Hydaticus aruspex male
 
Hydroporus larsoni
 
Dytiscus circumcinctus female
 
Coptotomus longulus male
 
Hygrotus obscureplagiatus female
 
Graphoderus liberus
 
Hydroporus tenebrosus
 
Graphoderus perplexus male
 
Agabus clavicornis
 
Rhantus sericans
 
Oreodytes snoqualmie
 
Agabinus sculpturellus
 
Desmopachria convexa
 
Colymbetes dolabratus female
 
Hygrotus marklini
 
Dytiscus alaskanus female
 
Dytiscus dauricus female
 
Agabus audeni
 
Graphoderus liberus
 
Hydroporus sinuatipes
 
Agabus confinis female
 
Agabus strigulosus
 
Agabus anthracinus
 
Hydroporus tenebrosus
 
Hydroporus tartaricus
 
Hydroporus tristis
 
Agabus coxalis
 
Ilybius pleuriticus female
 
Dytiscus cordieri female
 
Hydroporus nigellus
 
Hydroporus tademus female
 
Hydroporus despectus
 
Rhantus wallisi female
 
Stictotarsus spenceri
 
Agabus confertus
 
Agabus leptapsis female
 
Agabus thomsoni
 
Hygrotus salinarius
 
Rhantus binotatus
 
Agabus obliteratus female
 
Agabus mackenziensis male
 
Ilybius vittiger
 
Ilybius subaeneus
 
Agabus oblongulus
 
Agabus fuscipennis
 
Hydroporus pervicinus
 
Hygrotus nigrescens
 
Agabus clavicornis
 
Hygrotus suturalis
 
Laccophilus biguttatus
 
Neoporus superioris
 
Dytiscus alaskanus male
 
Neoclypeodytes ornatellus
 
Ilybius subaeneus
 
Agabus discolor female
 
Oreodytes obesus cordillerensis
 
Agabus hypomelas female
 
Hygrotus compar
 
Agabus perplexus
 
Neoclypeodytes ornatellus
 
Agabus canadensis
 
Agabus wasastjernae
 
Agabus leptapsis female
 
Oreodytes alaskanus
 
Agabus discors female
 
Oreodytes quadrimaculatus
 
Hydroporus notabilis
 
Agabus mackenziensis male
 
Colymbetes exaratus male
 
Sanfilippodytes pseudovilis
 
Dytiscus harrisii male
 
Desmopachria convexa
 
Hydroporus occidentalis
 
Colymbetes exaratus female
 
Hydroporus transpunctatus
 
Agabus discors male
 
Dytiscus dauricus male
 
Hygrotus unguicularis
 
Agabus discolor female
 
Agabus infuscatus
 
Agabus antennatus
 
Colymbetes dahuricus female
 
Agabus kootenai
 
Hygrotus nigrescens
 
Agabus approximatus
 
Hygrotus salinarius
 
Hydroporus rufinasus
 
Dytiscus dauricus female
 
Agabus adpressus
 
Oreodytes obesus cordillerensis
 
Liodessus obscurellus
 
Agabus hypomelas male
 
Agabus griseipennis
 
Dytiscus fasciventris female
 
Hydroporus sibiricus
 
Ilybius angustior
 
Colymbetes dolabratus female
 
Hydroporus polaris
 
Hydroporus tademus male
 
Agabus bicolor
 
Laccophilus maculosus
 
Agabus punctulatus
 
Hydroporus tristis
 
Agabinus sculpturellus
 
Ilybius discedens
 
Agabus triton
 
Hygrotus picatus
 
Rhantus consimilis
 
Rhantus wallisi male
 
Hygrotus dissimilis
 
Agabus moestus male
 
Colymbetes dolabratus male
 
Dytiscus marginicollis female
 
Hydroporus signatus
 
Oreodytes angustior
 
Agabus elongatus
 
Coptotomus longulus male
 
Dytiscus hatchi female
 
Oreodytes angustior
 
Graphoderus occidentalis male
 
Colymbetes paykulli
 
Agabus erichsoni
 
Oreodytes snoqualmie
 
Agabus confertus
 
Agabus discolor male
 
Hydroporus columbianus female
 
Oreodytes congruus
 
Acilius athabascae
 
Hydroporus appalachius
 
Agabus arcticus
 
Hygrotus patruelis
 
Dytiscus circumcinctus male
 
Oreodytes quadrimaculatus
 
Dytiscus harrisii female
 
Dytiscus hatchi male
 
Hydroporus transpunctatus
 
Rhantus gutticollis
 
Hydroporus pervicinus
 
Colymbetes densus female
 
Agabus wasastjernae
 
Acilius semisulcatus female
 
Hydroporus morio
 
Oreodytes alaskanus
 
Hydroporus mannerheimi
 
Hydroporus longiusculus
 
Agabus semipunctatus
 
Colymbetes dolabratus male
 
Agabus austinii male
 
Agabus oblongulus
 
Agabus bifarius
 
Hydroporus fuscipennis
 
Dytiscus hatchi male
 
Sanfilippodytes compertus
 
Hygrotus novemlineatus hudsonicus
 
Liodessus obscurellus
 
Sanfilippodytes compertus
 
Laccophilus biguttatus
 
Dytiscus harrisii female
 
Hydroporus fuscipennis
 
Oreodytes scitulus scitulus
 
Hydroporus tartaricus
 
Colymbetes densus female
 
Dytiscus marginicollis male
 
Agabus versimilis
 
Hygrotus tumidiventris
 
Agabus seriatus
 
Agabus hypomelas male
 
Agabus fuscipennis
 
Hygrotus punctilineatus
 
Hydroporus striola
 
Oreodytes crassulus
 
Agabus inscriptus
 
Agabus bjorkmanae
 
Agabus ambiguus
 
Hygrotus infuscatus
 
Colymbetes exaratus female
 
Hydroporus lapponum
 
Hydroporus mannerheimi
 
Nebrioporus macronychus
 
Hygrotus turbidus
 
Agabus pisobius female
 
Stictotarsus striatellus
 
Agabus bjorkmanae
 
Agabus obliteratus male
 
Agabus confinis female
 
Agabus zetterstedti
 
Agabus ancillus
 
Agabus austinii female
 
Dytiscus harrisii male
 
Neoporus undulatus
 
Agabus moestus female
 
Agabus kootenai
 
Acilius semisulcatus male
 
Agabus mackenziensis male
 
Sanfilippodytes pacificus
 
Ilybius pleuriticus female
 
Sanfilippodytes edwardsi
 
Agabus leptapsis male
 
Agabus vancouverensis
 
Agabus phaeopterus
 
Hygrotus novemlineatus hudsonicus
 
Sanfilippodytes edwardsi
 
Hydroporus fortis
 
Agabus perplexus
 
Neoscutopterus augustus female
 
Agabus austinii male
 
Graphoderus occidentalis female
 
Hygrotus marklini
 
Hydroporus sinuatipes
 
Agabus obliteratus female
 
Colymbetes densus male
 
Hydaticus aruspex female
 
Agabus obliteratus male
 
Hygrotus obscureplagiatus male
 
Agabus confertus female
 
Hydroporus obscurus
 
Dytiscus dauricus male
 
Carrhydrus crassipes
 
Colymbetes exaratus male
 
Hydroporus dentellus
 
Agabus discors female
 
Laccophilus maculosus
 
Agabus ancillus
 
Hygrotus masculinus
 
Ilybius churchillensis
 
Colymbetes densus female
 
Hydroporus obscurus
 
Hydroporus pervicinus
 
Rhantus gutticollis
 
Hygrotus tumidiventris
 
Hydroporus morio
 
Hygrotus sayi
 
Stictotarsus griseostriatus
 
Oreodytes quadrimaculatus
 
Dytiscus circumcinctus male
 
Hygrotus impressopunctatus
 
Oreodytes congruus
 
Agabus punctulatus
 
Hydroporus columbianus female
 
Rhantus suturellus male
 
Agabus austinii female
 
Hygrotus patruelis
 
Agabus arcticus
 
Acilius athabascae
 
Hydroporus appalachius
 
Agabus elongatus
 
Oreodytes angustior
 
Agabus seriatus
 
Agabus confertus
 
Oreodytes snoqualmie
 
Sanfilippodytes pacificus
 
Agabus approximatus
 
Agabus erichsoni
 
Graphoderus occidentalis male
 
Colymbetes paykulli
 
Dytiscus alaskanus male
 
Hygrotus picatus
 
Agabus triton
 
Ilybius discedens
 
Agabus ajax male
 
Dytiscus marginicollis female
 
Hydroporus signatus
 
Colymbetes dahuricus male
 
Ilybius quadrimaculatus
 
Dytiscus fasciventris female
 
Hygrotus dissimilis
 
Agabus moestus male
 
Hygrotus compar
 
Rhantus consimilis
 
Hydroporus tademus male
 
Agabus bicolor
 
Colymbetes dolabratus female
 
Ilybius angustior
 
Hygrotus lutescens male
 
Hygrotus unguicularis
 
Hydroporus tristis
 
Agabinus sculpturellus
 
Agabus punctulatus
 
Agabus adpressus
 
Agabus zetterstedti
 
Rhantus consimilis
 
Agabus adpressus
 
Dytiscus dauricus female
 
Acilius abbreviatus male
 
Agabus inscriptus
 
Hydroporus sibiricus
 
Oreodytes laevis
 
Dytiscus fasciventris female
 
Liodessus obscurellus
 
Agabus hypomelas male
 
Agabus griseipennis
 
Agabus approximatus
 
Agabus kootenai
 
Graphoderus perplexus male
 
Agabus antennatus
 
Hydroporus puberulus
 
Agabus infuscatus
 
Hygrotus masculinus
 
Hygrotus salinarius
 
Agabus thomsoni
 
Hydroporus dentellus
 
Colymbetes exaratus male
 
Carrhydrus crassipes
 
Hydroporus obscurus
 
Hygrotus masculinus
 
Oreodytes crassulus
 
Agabus ancillus
 
Laccophilus maculosus
 
Agabus bicolor
 
Rhantus binotatus
 
Agabus discors female
 
Hygrotus turbidus
 
Colymbetes densus male
 
Graphoderus perplexus female
 
Agabus ajax female
 
Hydroporus longiusculus
 
Graphoderus occidentalis female
 
Agabus confertus female
 
Hygrotus obscureplagiatus female
 
Hydaticus aruspex female
 
Coptotomus longulus female
 
Ilybius pleuriticus female
 
Sanfilippodytes pacificus
 
Agabus versimilis
 
Agabus perplexus
 
Neoscutopterus augustus female
 
Dytiscus cordieri female
 
Ilybius fraterculus
 
Sanfilippodytes edwardsi
 
Agabus phaeopterus
 
Agabus vancouverensis
 
Agabus confertus female
 
Neoporus undulatus
 
Dytiscus harrisii male
 
Agabus zetterstedti
 
Agabus austinii female
 
Agabus moestus female
 
Hydroporus occidentalis
 
Agabus lutosus male
 
Ilybius angustior
 
Stictotarsus striatellus
 
Dytiscus cordieri male
 
Agabus obliteratus male
 
Hygrotus infuscatus
 
Agabus ambiguus
 
Acilius abbreviatus female
 
Agabus bjorkmanae
 
Agabus inscriptus
 
Agabus pisobius female
 
Hygrotus turbidus
 
Agabus tristis
 
Hydroporus tademus male
 
Hydroporus lapponum
 
Nebrioporus macronychus
 
Agabus strigulosus
 
Agabus arcticus
 
Hygrotus tumidiventris
 
Agabus seriatus
 
Agabus versimilis
 
Dytiscus marginicollis male
 
Oreodytes crassulus
 
Sanfilippodytes terminalis
 
Hygrotus punctilineatus
 
Sanfilippodytes compertus
 
Hygrotus novemlineatus hudsonicus
 
Dytiscus hatchi male
 
Agabus elongatus
 
Agabus bifarius
 
Colymbetes paykulli
 
Agabus austinii male
 
Graphoderus occidentalis male
 
Colymbetes dolabratus male
 
Hydroporus mannerheimi
 
Acilius athabascae
 
Agabus triton
 
Hydroporus longiusculus
 
Agabus griseipennis
 
Oreodytes scitulus scitulus
 
Hydroporus tartaricus
 
Hydroporus fuscipennis
 
Agabus oblongulus
 
Dytiscus harrisii female