| In Book As | Corrected Spelling |
Latest Taxonomy | Note |
Order (Family Common Name) |
| Abedus brachonyx | | | not on page shown in index | Heteroptera (Giant Water Bug) |
| Abedus dilatatus | | | listed in 1977 Menke paper | Heteroptera (Giant Water Bug) |
| Abedus hungerfordi | | | listed in 1977 Menke paper | Heteroptera (Giant Water Bug) |
| Abedus immaculatus | | | | Heteroptera (Giant Water Bug) |
| Abedus indentatus | | | | Heteroptera (Giant Water Bug) |
| Abedus macronyx | | | invalid combo | Heteroptera (Giant Water Bug) |
| Abedus mayri | | | listed in 1977 Menke paper | Heteroptera (Giant Water Bug) |
| Abedus signoreti | | | listed in 1977 Menke paper | Heteroptera (Giant Water Bug) |
| Achorutes armatus | | Ceratophysella armata | | Collembola (Springtail) |
| Achorutes viaticus | | Hypogastrura viatica | | Collembola (Springtail) |
| Acilius semisulcatus abbreviatus | Acilius semisulcatus | | | Coleoptera (Predaceous Diving Beetle) |
| Acilius semisulcatus simplex | Acilius semisulcatus | | | Coleoptera (Predaceous Diving Beetle) |
| Acneus oregonensis | | | | Coleoptera (Water Penny Beetle) |
| Acneus oregonensis | | | | Coleoptera (False Water Penny Beetle) |
| Acneus quadrimaculatus | | | | Coleoptera (Water Penny Beetle) |
| Acneus quadrimaculatus | | | | Coleoptera (False Water Penny Beetle) |
| Acroneuria californica | | Calineuria californica | | Plecoptera (Stonefly) |
| Acroneuria delta | | Hesperoperla pacifica | | Plecoptera (Stonefly) |
| Acroneuria georgiana | | Beloneuria georgiana | | Plecoptera (Stonefly) |
| Acroneuria georgiana | | Beloneuria stewarti | | Plecoptera (Stonefly) |
| Acroneuria obscura | Hesperoperla obscura | Hesperoperla pacifica | | Plecoptera (Stonefly) |
| Acroneuria pacifica | | Hesperoperla pacifica | | Plecoptera (Stonefly) |
| Acroneuria pumila | | Hesperoperla pacifica | | Plecoptera (Stonefly) |
| Acroneuria ruralis | | Attaneuria ruralis | | Plecoptera (Stonefly) |
| Acroneuria theodora | | Doroneuria baumanni | | Plecoptera (Stonefly) |
| Acroneuria theodora | | Doroneuria theodora | | Plecoptera (Stonefly) |
| Acroneuria xanthenes | | Eccoptura xanthenes | | Plecoptera (Stonefly) |
| Ademon niger | | | | Hymenoptera (Parasitic Wasp) |
| Adoxomyia appressa appressa | Adoxomyia appressa | | | Diptera (Soldier Fly) |
| Adoxomyia argentata | | | | Diptera (Soldier Fly) |
| Adoxomyia claripennis | | | | Diptera (Soldier Fly) |
| Adoxomyia lata | | | | Diptera (Soldier Fly) |
| Adoxomyia rustica | | | | Diptera (Soldier Fly) |
| Aedes bicristatus | Aedes bieristatus | | | Diptera (Mosquito) |
| Aedes cataphylla | | | | Diptera (Mosquito) |
| Aedes cinereus | | | | Diptera (Mosquito) |
| Aedes communis | | | | Diptera (Mosquito) |
| Aedes dorsalis | | | | Diptera (Mosquito) |
| Aedes fitchii | | | | Diptera (Mosquito) |
| Aedes flavescens | | | | Diptera (Mosquito) |
| Aedes hexodontus | | | | Diptera (Mosquito) |
| Aedes increpitus | | | | Diptera (Mosquito) |
| Aedes nigromaculis | | | | Diptera (Mosquito) |
| Aedes pullatus | | | | Diptera (Mosquito) |
| Aedes squamiger | | | | Diptera (Mosquito) |
| Aedes sticticus | | | | Diptera (Mosquito) |
| Aedes taeniorhynchus | | | | Diptera (Mosquito) |
| Aedes varipalpis | Aedes varipalpus | | | Diptera (Mosquito) |
| Aedes ventrovittis | | | | Diptera (Mosquito) |
| Aedes vexans | | | | Diptera (Mosquito) |
| Aeshna arida | | | syn. of A. palmata in book | Odonata (Dragonfly) |
| Aeshna californica | | Rhionaeschna californica | | Odonata (Dragonfly) |
| Aeshna canadensis | | | | Odonata (Dragonfly) |
| Aeshna clepsydra | | | | Odonata (Dragonfly) |
| Aeshna constricta | | | | Odonata (Dragonfly) |
| Aeshna dugesii | Aeshna dugesi | Rhionaeschna dugesi | | Odonata (Dragonfly) |
| Aeshna interrupta | | | | Odonata (Dragonfly) |
| Aeshna interrupta interna | | | | Odonata (Dragonfly) |
| Aeshna interrupta nevadensis | | | listed in World List of Odonata | Odonata (Dragonfly) |
| Aeshna manni | | Rhionaeschna manni | | Odonata (Dragonfly) |
| Aeshna multicolor | | Rhionaeschna multicolor | | Odonata (Dragonfly) |
| Aeshna palmata | | | | Odonata (Dragonfly) |
| Aeshna subarctica | | | | Odonata (Dragonfly) |
| Aeshna umbrosa | | | | Odonata (Dragonfly) |
| Aeshna umbrosa occidentalis | | | | Odonata (Dragonfly) |
| Aeshna umbrosa umbrosa | | | | Odonata (Dragonfly) |
| Aeshna verticalis | | | | Odonata (Dragonfly) |
| Aeshna walkeri | | | | Odonata (Dragonfly) |
| Agabinus bifarius | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabinus glabrellus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabinus sculpturellus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus ancillus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus approximatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus austini | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus bjorkmanae | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus brevicollis | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus confertus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus discors | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus disintegratus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus griseipennis | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus hoppingi | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus ilybiiformis | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus lineellus | | | listed in Nearctica | Coleoptera (Predaceous Diving Beetle) |
| Agabus lugens | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus lutosus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus morosus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus oblitautus | Agabus obliteratus | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus obsoletus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus pandurus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus regularis | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus seriatus intersectus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus smithi | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus strigulosus | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus tristis | Agabus tristus | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus vandykei | | | | Coleoptera (Predaceous Diving Beetle) |
| Agabus walsinghami | | | listed in Harvard MCZ Type DB | Coleoptera (Predaceous Diving Beetle) |
| Agapetus arcita | | | | Trichoptera (Caddisfly) |
| Agapetus celatus | | | | Trichoptera (Caddisfly) |
| Agapetus malleatus | | | | Trichoptera (Caddisfly) |
| Agapetus marlo | | | | Trichoptera (Caddisfly) |
| Agapetus orosus | | | | Trichoptera (Caddisfly) |
| Agapetus taho | | | | Trichoptera (Caddisfly) |
| Agathon canadensis | Bibiocephala canadensis | Agathon comstocki | | Diptera (Net-Winged Midge) |
| Agathon doanei | | | | Diptera (Net-Winged Midge) |
| Agraylea multipunctata | | | | Trichoptera (Caddisfly) |
| Agraylea saltesea | | | | Trichoptera (Caddisfly) |
| Agrion aequabile californicum | Agrion aequabile | Calopteryx aequabilis | | Odonata (Damselfly) |
| Agrion maculatum | | Calopteryx maculata | | Odonata (Damselfly) |
| Agrypnia glacialis | | | | Trichoptera (Caddisfly) |
| Agrypnia vestita | | | | Trichoptera (Caddisfly) |
| Allocapnia vivipara | | | | Plecoptera (Stonefly) |
| Alloperla borealis | | Sweltsa borealis | | Plecoptera (Stonefly) |
| Alloperla chandleri | | | | Plecoptera (Stonefly) |
| Alloperla coloradensis | | Sweltsa coloradensis | | Plecoptera (Stonefly) |
| Alloperla continua | | Sweltsa continua | | Plecoptera (Stonefly) |
| Alloperla delicata | | | | Plecoptera (Stonefly) |
| Alloperla diversa | | Plumiperla diversa | | Plecoptera (Stonefly) |
| Alloperla dubia | | Suwallia dubia | | Plecoptera (Stonefly) |
| Alloperla dubia | | Suwallia pallidula | | Plecoptera (Stonefly) |
| Alloperla elevata | | Alloperla severa | | Plecoptera (Stonefly) |
| Alloperla exquisita | | Sweltsa exquisita | | Plecoptera (Stonefly) |
| Alloperla fidelis | | Sweltsa fidelis | | Plecoptera (Stonefly) |
| Alloperla forcipata | | Suwallia forcipata | | Plecoptera (Stonefly) |
| Alloperla fraterna | | | | Plecoptera (Stonefly) |
| Alloperla pacifica | | Sweltsa pacifica | | Plecoptera (Stonefly) |
| Alloperla pallidula | | Suwallia pallidula | | Plecoptera (Stonefly) |
| Alloperla pintada | | Triznaka pintada | | Plecoptera (Stonefly) |
| Alloperla severa | | | | Plecoptera (Stonefly) |
| Alloperla spatulata | Alloperla spathulata | Sweltsa pacifica | | Plecoptera (Stonefly) |
| Alloperla tamalpa | | Sweltsa tamalpa | | Plecoptera (Stonefly) |
| Alloperla thalia | | Alloperla severa | | Plecoptera (Stonefly) |
| Alloperla townesi | | Sweltsa townesi | | Plecoptera (Stonefly) |
| Allotrichoma lateralis | Allotrichoma laterale | | | Diptera (Shore Fly) |
| Allotrichoma livens | | | Guam species per book | Diptera (Shore Fly) |
| Allotrichoma simplex | | | | Diptera (Shore Fly) |
| Allotrichoma trispina | Allotrichoma trispinum | | | Diptera (Shore Fly) |
| Allotrichoma yosemite | | | | Diptera (Shore Fly) |
| Alluaudomyia bella | | | | Diptera (Biting Midge) |
| Alluaudomyia needhami | | | | Diptera (Biting Midge) |
| Alluaudomyia stictipennis | | | | Diptera (Biting Midge) |
| Ambrysus amargosus | | | | Heteroptera (Creeping Water Bug) |
| Ambrysus bohartorum | Ambrysus californicus | | | Heteroptera (Creeping Water Bug) |
| Ambrysus californicus | | | | Heteroptera (Creeping Water Bug) |
| Ambrysus funebris | | | | Heteroptera (Creeping Water Bug) |
| Ambrysus mormon | | | | Heteroptera (Creeping Water Bug) |
| Ambrysus occidentalis | | | | Heteroptera (Creeping Water Bug) |
| Ambrysus puncticollis | | | | Heteroptera (Creeping Water Bug) |
| Ambrysus signoreti | | | | Heteroptera (Creeping Water Bug) |
| Ameletus amador | | | | Ephemeroptera (Mayfly) |
| Ameletus dissitus | | | | Ephemeroptera (Mayfly) |
| Ameletus facilis | | Ameletus vancouverensis | | Ephemeroptera (Mayfly) |
| Ameletus imbellis | | | | Ephemeroptera (Mayfly) |
| Ameletus shepherdi | | | | Ephemeroptera (Mayfly) |
| Ameletus validus | | | | Ephemeroptera (Mayfly) |
| Ameletus velox | | | | Ephemeroptera (Mayfly) |
| Ametor latus | | | | Coleoptera (Water Scavenger Beetle) |
| Ametor scabrosus | | | | Coleoptera (Water Scavenger Beetle) |
| Amphiagrion abbreviatum | | | | Odonata (Damselfly) |
| Amphiagrion saucium | | | | Odonata (Damselfly) |
| Amphizoa carinata | | Amphizoa lecontei | | Coleoptera (Trout-Stream Beetle) |
| Amphizoa davidi | | | | Coleoptera (Trout-Stream Beetle) |
| Amphizoa insolens | | | | Coleoptera (Trout-Stream Beetle) |
| Amphizoa lecontei | | | | Coleoptera (Trout-Stream Beetle) |
| Amphizoa striata | | | | Coleoptera (Trout-Stream Beetle) |
| Ampumixis dispar | | | | Coleoptera (Riffle Beetle) |
| Anacaena limbata | | | | Coleoptera (Water Scavenger Beetle) |
| Anacaena signaticollis | | | | Coleoptera (Water Scavenger Beetle) |
| Anagapetus chandleri | | | | Trichoptera (Caddisfly) |
| Anagrus brocheri | | | European species | Hymenoptera (Parasitic Wasp) |
| Anagrus subfuscus | | | European species | Hymenoptera (Parasitic Wasp) |
| Anatopynia algens | | Macropelopia algens | | Diptera (Midge) |
| Anatopynia guttularis | | Psectrotanypus dyari | | Diptera (Midge) |
| Anatopynia marginellus | | Brundiniella florens | | Diptera (Midge) |
| Anatopynia venusta | | Macropelopia venusta | | Diptera (Midge) |
| Anax junius | | | | Odonata (Dragonfly) |
| Anax walsinghami | | | | Odonata (Dragonfly) |
| Anchodemus angustus | | Lixellus lutulentus | | Coleoptera (Water Weevil) |
| Anchycteis velutina | | | | Coleoptera (Toed-Winged Beetle) |
| Anchytarsus bicolor | | | | Coleoptera (Toed-Winged Beetle) |
| Ancyronyx variegatus | | | | Coleoptera (Riffle Beetle) |
| Anopheles freeborni | | | | Diptera (Mosquito) |
| Anopheles occidentalis | | | | Diptera (Mosquito) |
| Anopheles pseudopunctipennis franciscanus | Anopheles franciscanus | | | Diptera (Mosquito) |
| Anopheles punctipennis | | | | Diptera (Mosquito) |
| Anoplius depressipes | | | | Hymenoptera (Parasitic Wasp) |
| Anoplius illinoiensis | Anoplius illinoensis | | | Hymenoptera (Parasitic Wasp) |
| Antichaeta robiginosa | | | | Diptera (Marsh Fly) |
| Antocha monticola | | | | Diptera (Crane Fly) |
| Anurida granaria | | | | Collembola (Springtail) |
| Anurida maritima | | | | Collembola (Springtail) |
| Anurida tullbergi | | | | Collembola (Springtail) |
| Apatania sorex | | | | Trichoptera (Caddisfly) |
| Apatolestes albipilosus | | | | Diptera (Horse or Deer Fly) |
| Apatolestes ater | | | | Diptera (Horse or Deer Fly) |
| Apatolestes colei | | | | Diptera (Horse or Deer Fly) |
| Apatolestes comastes comastes | Apatolestes comastes | | | Diptera (Horse or Deer Fly) |
| Apatolestes comastes willistoni | Apatolestes willistoni | | | Diptera (Horse or Deer Fly) |
| Apatolestes hinei | | | | Diptera (Horse or Deer Fly) |
| Apatolestes parkeri | | | | Diptera (Horse or Deer Fly) |
| Apatolestes rossi | | | | Diptera (Horse or Deer Fly) |
| Apatolestes similis | | Apatolestes villosulus | | Diptera (Horse or Deer Fly) |
| Aphrosylus californicus | | | | Diptera (Longlegged Fly) |
| Aphrosylus direptor | | | | Diptera (Longlegged Fly) |
| Aphrosylus grassator | | | | Diptera (Longlegged Fly) |
| Aphrosylus nigripennis | | | | Diptera (Longlegged Fly) |
| Aphrosylus praedator | | | | Diptera (Longlegged Fly) |
| Aphrosylus wirthi | | | | Diptera (Longlegged Fly) |
| Apobaetis indeprensus | | Apobaetis etowah | | Ephemeroptera (Mayfly) |
| Apsilops sericata | | | | Hymenoptera (Parasitic Wasp) |
| Apteraliplus parvulus | | | | Coleoptera (Crawling Water Beetle) |
| Archilestes californica | | Archilestes californicus | | Odonata (Damselfly) |
| Archilestes grandis | | | | Odonata (Damselfly) |
| Arctopsyche californica | | | | Trichoptera (Caddisfly) |
| Arctopsyche grandis | | | | Trichoptera (Caddisfly) |
| Arctopsyche inermis | | Arctopsyche grandis | | Trichoptera (Caddisfly) |
| Arcynopteryx aurea | | Perlinodes aurea | | Plecoptera (Stonefly) |
| Arcynopteryx barbara | | Oroperla barbara | | Plecoptera (Stonefly) |
| Arcynopteryx parallela | | Skwala americana | | Plecoptera (Stonefly) |
| Arcynopteryx picticeps | | Frisonia picticeps | | Plecoptera (Stonefly) |
| Arcynopteryx vagans | | Perlinodes aurea | | Plecoptera (Stonefly) |
| Arcynopteryx walkeri | | Frisonia picticeps | | Plecoptera (Stonefly) |
| Arcynopteryx yosemite | | Megarcys yosemite | | Plecoptera (Stonefly) |
| Argia agrioides | | | | Odonata (Damselfly) |
| Argia alberta | | | | Odonata (Damselfly) |
| Argia emma | | | | Odonata (Damselfly) |
| Argia hinei | | | | Odonata (Damselfly) |
| Argia kurilis | | | syn. of A. vivida in book | Odonata (Damselfly) |
| Argia moesta moesta | Argia moesta | | | Odonata (Damselfly) |
| Argia nahuana | | | | Odonata (Damselfly) |
| Argia rita | | Argia munda | | Odonata (Damselfly) |
| Argia salaasi | | | invalid combo | Odonata (Damselfly) |
| Argia sedula | | | | Odonata (Damselfly) |
| Argia solita | | Argia pallens | | Odonata (Damselfly) |
| Argia tonto | | | | Odonata (Damselfly) |
| Argia vivida | | | | Odonata (Damselfly) |
| Argyra albicans | | | | Diptera (Longlegged Fly) |
| Argyra albiventris | | | | Diptera (Longlegged Fly) |
| Argyra argentiventris | | | | Diptera (Longlegged Fly) |
| Argyra barbipes | | | | Diptera (Longlegged Fly) |
| Argyra californica | | | | Diptera (Longlegged Fly) |
| Argyra cylindrica | | | | Diptera (Longlegged Fly) |
| Argyra femoralis | | | | Diptera (Longlegged Fly) |
| Argyra nigripes | | | | Diptera (Longlegged Fly) |
| Argyra nigriventris | | | | Diptera (Longlegged Fly) |
| Argyra splendida | | Argyra splendens | | Diptera (Longlegged Fly) |
| Asmeringa lindsleyi | | Tronamyia lindsleyi | | Diptera (Shore Fly) |
| Atherix variegata | | | | Diptera (Watersnipe Fly) |
| Athripsodes annulicornis | | Ceraclea annulicornis | | Trichoptera (Caddisfly) |
| Athripsodes tarsipunctatus | | Ceraclea tarsipunctata | | Trichoptera (Caddisfly) |
| Athripsodes transversus | | Ceraclea transversa | | Trichoptera (Caddisfly) |
| Athyroglossa glabra | | | | Diptera (Shore Fly) |
| Athyroglossa glaphyropus | | | | Diptera (Shore Fly) |
| Athyroglossa melanderi | | | | Diptera (Shore Fly) |
| Atissa litoralis | | | | Diptera (Shore Fly) |
| Atissa pygmaea | | | | Diptera (Shore Fly) |
| Atractelmis wawona | | | | Coleoptera (Riffle Beetle) |
| Atrichopogon arcticus | | | | Diptera (Biting Midge) |
| Atrichopogon fusculus | | | | Diptera (Biting Midge) |
| Atrichopogon levis | | | | Diptera (Biting Midge) |
| Atrichopogon minutus | | | | Diptera (Biting Midge) |
| Atrichopogon occidentalis | | | | Diptera (Biting Midge) |
| Atrichopogon transversus | | | | Diptera (Biting Midge) |
| Atrichopogon websteri | | | | Diptera (Biting Midge) |
| Atylotus incisuralis | | | listed in Nearctica | Diptera (Horse or Deer Fly) |
| Baetis adonis | | | | Ephemeroptera (Mayfly) |
| Baetis alius | | | | Ephemeroptera (Mayfly) |
| Baetis bicaudatus | | | | Ephemeroptera (Mayfly) |
| Baetis devinctus | | Diphetor hageni | | Ephemeroptera (Mayfly) |
| Baetis diablus | | | | Ephemeroptera (Mayfly) |
| Baetis insignificans | | Acentrella insignificans | | Ephemeroptera (Mayfly) |
| Baetis intercalaris | | | | Ephemeroptera (Mayfly) |
| Baetis intermedius | | Baetis tricaudatus | | Ephemeroptera (Mayfly) |
| Baetis leechi | | Fallceon quilleri | | Ephemeroptera (Mayfly) |
| Baetis moffatti | | Baetis tricaudatus | | Ephemeroptera (Mayfly) |
| Baetis palisadi | | | | Ephemeroptera (Mayfly) |
| Baetis piscatorius | Baetis piscatoris | | | Ephemeroptera (Mayfly) |
| Baetis sulfurosus | | Acerpenna sulfurosa | | Ephemeroptera (Mayfly) |
| Baetis thermophilos | | Acerpenna thermophilos | | Ephemeroptera (Mayfly) |
| Baetis tricaudatus | | | | Ephemeroptera (Mayfly) |
| Baetisca obesa | | | | Ephemeroptera (Mayfly) |
| Bagous americanus | | | | Coleoptera (Water Weevil) |
| Bagous californicus | | | | Coleoptera (Water Weevil) |
| Bagous chandleri | | | | Coleoptera (Water Weevil) |
| Bagous longirostris | | | | Coleoptera (Water Weevil) |
| Bagous restrictus | | | | Coleoptera (Water Weevil) |
| Bagous tingi | | | | Coleoptera (Water Weevil) |
| Banksiola crotchi | | | | Trichoptera (Caddisfly) |
| Bathythrix gyrini | | | possible synonym of Bathythrix texana | Hymenoptera (Parasitic Wasp) |
| Bathythrix pimplae | | | | Hymenoptera (Parasitic Wasp) |
| Belonia saturata | | Libellula saturata | | Odonata (Dragonfly) |
| Belostoma apache | Belostoma micantulum | | S. American sp. | Heteroptera (Giant Water Bug) |
| Belostoma bakeri | | | | Heteroptera (Giant Water Bug) |
| Belostoma boscii | | | S. American species | Heteroptera (Giant Water Bug) |
| Belostoma flumineum | | | | Heteroptera (Giant Water Bug) |
| Belostoma fusciventre | | | | Heteroptera (Giant Water Bug) |
| Belostoma minor | | | S. American species | Heteroptera (Giant Water Bug) |
| Benacus griseus | | Lethocerus griseus | | Heteroptera (Giant Water Bug) |
| Berosus californicus | | Berosus fraternus | | Coleoptera (Water Scavenger Beetle) |
| Berosus fraternus | | | | Coleoptera (Water Scavenger Beetle) |
| Berosus infuscatus | | | | Coleoptera (Water Scavenger Beetle) |
| Berosus ingeminatus | | | | Coleoptera (Water Scavenger Beetle) |
| Berosus maculosus | | | | Coleoptera (Water Scavenger Beetle) |
| Berosus metalliceps | | | | Coleoptera (Water Scavenger Beetle) |
| Berosus punctatissimus | | | | Coleoptera (Water Scavenger Beetle) |
| Berosus striatus | | Berosus sayi | | Coleoptera (Water Scavenger Beetle) |
| Berosus styliferus | | Berosus stylifer | | Coleoptera (Water Scavenger Beetle) |
| Bezzia biannulata | | | | Diptera (Biting Midge) |
| Bezzia bilineata | | | | Diptera (Biting Midge) |
| Bezzia bivittata | | | | Diptera (Biting Midge) |
| Bezzia coloradensis | | | | Diptera (Biting Midge) |
| Bezzia expolita | | | | Diptera (Biting Midge) |
| Bezzia flavitarsis | | | | Diptera (Biting Midge) |
| Bezzia glabra | | | | Diptera (Biting Midge) |
| Bezzia granulosa | | Neurobezzia granulosa | | Diptera (Biting Midge) |
| Bezzia modocensis | | Bezzia pruinosa | | Diptera (Biting Midge) |
| Bezzia opaca | | | | Diptera (Biting Midge) |
| Bezzia pulverea | | | | Diptera (Biting Midge) |
| Bezzia punctipennis | | | | Diptera (Biting Midge) |
| Bezzia setulosa | | | | Diptera (Biting Midge) |
| Bezzia sordida | | | | Diptera (Biting Midge) |
| Bezzia varicolor | | | | Diptera (Biting Midge) |
| Bibiocephala comstocki | | Agathon comstocki | | Diptera (Net-Winged Midge) |
| Bibiocephala grandis | | | | Diptera (Net-Winged Midge) |
| Bibiocephala lodi lodi | Ephemerella lodi | Eurylophella lodi | | Ephemeroptera (Mayfly) |
| Bidessus affinis | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus cinctellus | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus leachi | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus ornatellus | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus pictodes | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus plicipennis | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus quadripustulatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus subplicatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Bidessus subtilis | | | | Coleoptera (Predaceous Diving Beetle) |
| Bittacomorpha occidentalis | | | | Diptera (Phantom Crane Fly) |
| Bittacomorphella sackenii | | | | Diptera (Phantom Crane Fly) |
| Blepharicera jordani | | | | Diptera (Net-Winged Midge) |
| Blepharicera osten-sackeni | Blepharicera ostensackeni | | | Diptera (Net-Winged Midge) |
| Boreodroma maculipes | Boreodromia maculipes | | | Diptera (Dance Fly) |
| Bourletiella hortensis | | | | Collembola (Springtail) |
| Brachybamus electus | | | | Coleoptera (Water Weevil) |
| Brachycentrus americanus | | | | Trichoptera (Caddisfly) |
| Brachydeutera argentata | | | | Diptera (Shore Fly) |
| Brachydeutera hebes | | | | Diptera (Shore Fly) |
| Brachynus janthinipennis | Brachinus janthinipennis | | non-aquatic genus | Coleoptera (Ground Beetle) |
| Brachyptera banksii | | Taenionema pallidum | | Plecoptera (Stonefly) |
| Brachyptera californica | | Taenionema californicum | | Plecoptera (Stonefly) |
| Brachyptera grinnelli | | Taenionema grinnelli | | Plecoptera (Stonefly) |
| Brachyptera kincaidi | | Taenionema kincaidi | | Plecoptera (Stonefly) |
| Brachyptera nigripennis | | Taenionema pallidum | | Plecoptera (Stonefly) |
| Brachyptera occidentalis | | Doddsia occidentalis | | Plecoptera (Stonefly) |
| Brachyptera pacifica | | Taenionema pacificum | | Plecoptera (Stonefly) |
| Brachyptera pallida | | Taenionema pallidum | | Plecoptera (Stonefly) |
| Brachyptera pallidura | | Taenionema pallidum | | Plecoptera (Stonefly) |
| Brachyptera raynoria | | Taenionema raynorium | | Plecoptera (Stonefly) |
| Brachyptera vanduzeei | Brachyptera vanduzeea | Oemopteryx vanduzeea | | Plecoptera (Stonefly) |
| Brechmorhaga mendax | Brechmorhoga mendax | | | Odonata (Dragonfly) |
| Brennania hera | | | | Diptera (Horse or Deer Fly) |
| Brychius hornii | | | | Coleoptera (Crawling Water Beetle) |
| Brychius pacificus | | | | Coleoptera (Crawling Water Beetle) |
| Bryobiota bicolor | | | | Coleoptera (Rove Beetle) |
| Buenoa margaritacea | | | | Heteroptera (Backswimmer) |
| Buenoa omani | | | | Heteroptera (Backswimmer) |
| Buenoa scimitra | | | | Heteroptera (Backswimmer) |
| Buenoa uhleri | | | | Heteroptera (Backswimmer) |
| Caenis tardata | | | | Ephemeroptera (Mayfly) |
| Callibaetis californicus | | | | Ephemeroptera (Mayfly) |
| Callibaetis carolus | | Callibaetis ferrugineus hageni | | Ephemeroptera (Mayfly) |
| Callibaetis hageni | | Callibaetis ferrugineus hageni | | Ephemeroptera (Mayfly) |
| Callibaetis hebes | | Callibaetis ferrugineus hageni | | Ephemeroptera (Mayfly) |
| Callibaetis montanus | | | | Ephemeroptera (Mayfly) |
| Callibaetis pacificus | | Callibaetis pictus | | Ephemeroptera (Mayfly) |
| Callibaetis pictus | | | | Ephemeroptera (Mayfly) |
| Callibaetis signatus | | Callibaetis pictus | | Ephemeroptera (Mayfly) |
| Callibaetis traverae | | Callibaetis fluctuans | | Ephemeroptera (Mayfly) |
| Callicorixa audeni | | | | Heteroptera (Water Boatman) |
| Callicorixa vulnerata | | | | Heteroptera (Water Boatman) |
| Calliperla luctuosa | | | | Plecoptera (Stonefly) |
| Calopteryx virgo | | | European species | Odonata (Damselfly) |
| Cambarus immunis | | | Corixid oviposition target | |
| Cambarus simulans | | | Corixid oviposition target | |
| Campsicnemus armatus | | | Icelandic species | Diptera (Longlegged Fly) |
| Campsicnemus claudicans | | | | Diptera (Longlegged Fly) |
| Campsicnemus degener | | | | Diptera (Longlegged Fly) |
| Campsicnemus nigripes | | | | Diptera (Longlegged Fly) |
| Campsicnemus philoctetes | | | | Diptera (Longlegged Fly) |
| Canace aldrichi | | Canacea aldrichi | | Diptera (Beach Fly) |
| Canaceoides nudata | Canaceoides nudatus | | | Diptera (Beach Fly) |
| Capnia bakeri | | Mesocapnia bakeri | | Plecoptera (Stonefly) |
| Capnia barberi | | | | Plecoptera (Stonefly) |
| Capnia californica | | | | Plecoptera (Stonefly) |
| Capnia columbiana | | Utacapnia columbiana | | Plecoptera (Stonefly) |
| Capnia elongata | | Capnia gracilaria | | Plecoptera (Stonefly) |
| Capnia fibula | | Capnura fibula | | Plecoptera (Stonefly) |
| Capnia fumigata | | Isocapnia grandis | | Plecoptera (Stonefly) |
| Capnia glabra | | | | Plecoptera (Stonefly) |
| Capnia maculata | | Bolshecapnia maculata | | Plecoptera (Stonefly) |
| Capnia projecta | | Mesocapnia projecta | | Plecoptera (Stonefly) |
| Capnia promota | | | | Plecoptera (Stonefly) |
| Capnia spinulosa | | | | Plecoptera (Stonefly) |
| Capnia teresa | | | | Plecoptera (Stonefly) |
| Capnia tumida | | Capnia pileata | | Plecoptera (Stonefly) |
| Caraphractus cinctus | Caraphtactis cinctus | | | Hymenoptera (Parasitic Wasp) |
| Cataclysta jaliscalis | Petrophila jaliscalis | | MONA #4775 | Lepidoptera (Aquatic Moth) |
| Celina angustata | | | | Coleoptera (Predaceous Diving Beetle) |
| Cenocorixa andersoni | | | | Heteroptera (Water Boatman) |
| Cenocorixa bifida | | | | Heteroptera (Water Boatman) |
| Cenocorixa blaisdelli | | | | Heteroptera (Water Boatman) |
| Cenocorixa kuiterti | | | | Heteroptera (Water Boatman) |
| Cenocorixa utahensis | | | | Heteroptera (Water Boatman) |
| Cenocorixa wileyae | | | | Heteroptera (Water Boatman) |
| Centroptilum conturbatum | | | | Ephemeroptera (Mayfly) |
| Centroptilum convexum | | Centroptilum album | | Ephemeroptera (Mayfly) |
| Centroptilum venosum | | Procloeon venosum | | Ephemeroptera (Mayfly) |
| Cercyon fimbriatus | | | non-aquatic | |
| Cercyon kulzeri | | | non-aquatic | |
| Cercyon luniger | | | non-aquatic | |
| Ceropsilopa coquilletti | | | | Diptera (Shore Fly) |
| Ceropsilopa dispar | | | | Diptera (Shore Fly) |
| Ceropsilopa staffordi | | | | Diptera (Shore Fly) |
| Chaetarthria minor | | Chaetarthria pusilla | | Coleoptera (Water Scavenger Beetle) |
| Chaetarthria nigrella | | | | Coleoptera (Water Scavenger Beetle) |
| Chaetarthria pallida | | | | Coleoptera (Water Scavenger Beetle) |
| Chaoborus astictopus | | | | Diptera (Phantom Midge) |
| Chaoborus flavicans | | | | Diptera (Phantom Midge) |
| Chaoborus nyblaei | Chaoborus cooki | | AIM | Diptera (Phantom Midge) |
| Chaoborus punctipennis | | | | Diptera (Phantom Midge) |
| Chelifera precatoria | | | | Diptera (Dance Fly) |
| Cheumatopsyche campyla | | | | Trichoptera (Caddisfly) |
| Cheumatopsyche mickeli | | | | Trichoptera (Caddisfly) |
| Cheumatopsyche mollala | | | | Trichoptera (Caddisfly) |
| Chilo forbesellus | | | paracitized by Apsilops sericata | Lepidoptera (Aquatic Moth) |
| Chiloxanthus stellatus | | | | Heteroptera (Shore Bug) |
| Chimarra angustipennis | | | | Trichoptera (Caddisfly) |
| Chimarra elia | | | | Trichoptera (Caddisfly) |
| Chimarra feria | | | | Trichoptera (Caddisfly) |
| Chimarra siva | | Chimarra angustipennis | | Trichoptera (Caddisfly) |
| Chimarra utahensis | | | | Trichoptera (Caddisfly) |
| Chorebidella bergi | | | | Hymenoptera (Parasitic Wasp) |
| Chorebus aquaticus | | | | Hymenoptera (Parasitic Wasp) |
| Choroterpes terratoma | | | | Ephemeroptera (Mayfly) |
| Chrysogaster bellula | Chrysogaster bellulus | Orthonevra bellula | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster chilosoioides | Chrysosyrphus chilosoioides | | Nearctica | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster nigrovittata | | Orthonevra nigrovittata | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster pacifica | | Orthonevra nigrovittata | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster parva | | Orthonevra parva | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster pulchella | | Orthonevra pulchella | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster robusta | | Orthonevra robusta | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster stigmata | Chrysogaster stigmatus | Orthonevra stigmata | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysogaster unicolor | | Orthonevra unicolor | | Diptera (Flower Fly or Rattail Maggot) |
| Chrysops aestuans | | | | Diptera (Horse or Deer Fly) |
| Chrysops asbestos | | | | Diptera (Horse or Deer Fly) |
| Chrysops bishoppi | | | | Diptera (Horse or Deer Fly) |
| Chrysops carbonaria | Chrysops carbonarius | | | Diptera (Horse or Deer Fly) |
| Chrysops clavicornis | | | | Diptera (Horse or Deer Fly) |
| Chrysops coloradensis | | | | Diptera (Horse or Deer Fly) |
| Chrysops coquilletteii | Chrysops coquilletti | | | Diptera (Horse or Deer Fly) |
| Chrysops discalis | | | | Diptera (Horse or Deer Fly) |
| Chrysops excitans | | | | Diptera (Horse or Deer Fly) |
| Chrysops fulvaster | | | | Diptera (Horse or Deer Fly) |
| Chrysops furcata | Chrysops furcatus | | | Diptera (Horse or Deer Fly) |
| Chrysops hirsuticallus | | | | Diptera (Horse or Deer Fly) |
| Chrysops mitis | | | | Diptera (Horse or Deer Fly) |
| Chrysops noctifera noctifera | | | invalid combo | Diptera (Horse or Deer Fly) |
| Chrysops noctifera pertinax | | | invalid combo | Diptera (Horse or Deer Fly) |
| Chrysops pachycera hungerfordi | Chrysops pachycera | Chrysops pachycerus | | Diptera (Horse or Deer Fly) |
| Chrysops pachycera pachycera | Chrysops pachycera | Chrysops pachycerus | | Diptera (Horse or Deer Fly) |
| Chrysops pechumani | | | | Diptera (Horse or Deer Fly) |
| Chrysops proclivis imfurcata | Chrysops proclivis | | | Diptera (Horse or Deer Fly) |
| Chrysops proclivis picea | Chrysops proclivis | | | Diptera (Horse or Deer Fly) |
| Chrysops proclivis proclivis | Chrysops proclivis | | | Diptera (Horse or Deer Fly) |
| Chrysops robusta | Chrysops robustus | Chrysops coquilletti | | Diptera (Horse or Deer Fly) |
| Chrysops surda | Chrysops surdus | | | Diptera (Horse or Deer Fly) |
| Chrysops virgulata | Chrysops virgulatus | | | Diptera (Horse or Deer Fly) |
| Chrysozona americana | | Haematopota americana | | Diptera (Horse or Deer Fly) |
| Chyranda centralis | | | | Trichoptera (Caddisfly) |
| Cinygma dimicki | | | | Ephemeroptera (Mayfly) |
| Cinygmula mimus | | | | Ephemeroptera (Mayfly) |
| Cinygmula par | | | | Ephemeroptera (Mayfly) |
| Cinygmula tioga | | | | Ephemeroptera (Mayfly) |
| Cinygmula uniformis | | | | Ephemeroptera (Mayfly) |
| Clanoneurum americanum | | | | Diptera (Shore Fly) |
| Clanoneurum menozzii | | | French sp. | Diptera (Shore Fly) |
| Cleptelmis addenda | | | | Coleoptera (Riffle Beetle) |
| Cleptelmis ornata | | | | Coleoptera (Riffle Beetle) |
| Climacia areolaris | | | | Neuroptera (Spongillaflies) |
| Climacia californica | | | | Neuroptera (Spongillaflies) |
| Climacia dictyona | | Climacia areolaris | | Neuroptera (Spongillaflies) |
| Clinocera brunnipennis | | Trichoclinocera brunnipennis | | Diptera (Dance Fly) |
| Clinocera prasinata | | | | Diptera (Dance Fly) |
| Clinocera stagnalis | | | | Diptera (Dance Fly) |
| Clinohelea usingeri | | | | Diptera (Biting Midge) |
| Clostoeca disjunctus | Clostoeca disjuncta | | | Trichoptera (Caddisfly) |
| Clostoeca sperryae | | Clostoeca disjuncta | | Trichoptera (Caddisfly) |
| Cnephia minus | | | | Diptera (Black Fly) |
| Cnephia mutata | | | | Diptera (Black Fly) |
| Cnephia osborni | | | | Diptera (Black Fly) |
| Cnephia stewarti | | Mayacnephia stewarti | | Diptera (Black Fly) |
| Coenagrion resolutum | | | | Odonata (Damselfly) |
| Coenia fumosa | | | European saltwater sp. | Diptera (Shore Fly) |
| Coenia turbida | | | invalid combo | Diptera (Shore Fly) |
| Colymbetes exaratas | Colymbetes exaratus | | | Coleoptera (Predaceous Diving Beetle) |
| Colymbetes inaequalis | | | | Coleoptera (Predaceous Diving Beetle) |
| Colymbetes rugipennis | | | | Coleoptera (Predaceous Diving Beetle) |
| Colymbetes seminiger | | | | Coleoptera (Predaceous Diving Beetle) |
| Colymbetes strigatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Copelatus chevrolati renovatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Copelatus impressicollis | | | | Coleoptera (Predaceous Diving Beetle) |
| Coptotomus difficilis | | | | Coleoptera (Predaceous Diving Beetle) |
| Coptotomus longulus | | | | Coleoptera (Predaceous Diving Beetle) |
| Cordilura adrogans | | | | Diptera (Dung Fly) |
| Cordilura amans | | Bucephalina amans | | Diptera (Dung Fly) |
| Cordilura beringensis | | Cordilura atrata | | Diptera (Dung Fly) |
| Cordilura latifrons | | | | Diptera (Dung Fly) |
| Cordilura luteola | | | | Diptera (Dung Fly) |
| Cordilura masonina | Cordilura masconina | Cordilura criddlei | | Diptera (Dung Fly) |
| Cordulegaster dorsalis | | | | Odonata (Dragonfly) |
| Cordulia shurtleffi | Cordulia shurtleffii | | | Odonata (Dragonfly) |
| Corisella decolor | | | | Heteroptera (Water Boatman) |
| Corisella dispersa | | | invalid combo | Heteroptera (Water Boatman) |
| Corisella edulis | | | | Heteroptera (Water Boatman) |
| Corisella inscripta | | | | Heteroptera (Water Boatman) |
| Corisella mercenaria | | | | Heteroptera (Water Boatman) |
| Corisella tarsalis | | | | Heteroptera (Water Boatman) |
| Corisella tumida | | | invalid combo | Heteroptera (Water Boatman) |
| Corydalus cognata | Corydalus cognatus | Corydalus cornutus | | Megaloptera (Dobsonfly) |
| Crenitis alticcola | Crenitis alticola | | | Coleoptera (Water Scavenger Beetle) |
| Crenitis dissimilis | | | | Coleoptera (Water Scavenger Beetle) |
| Crenitis morata | | | | Coleoptera (Water Scavenger Beetle) |
| Crenitis rufiventris | | | | Coleoptera (Water Scavenger Beetle) |
| Crenitis seriellus | | Crenitis rufiventris | | Coleoptera (Water Scavenger Beetle) |
| Crypteria americana | | Neocladura americana | | Diptera (Crane Fly) |
| Cryptochironomus digitatus | | | | Diptera (Midge) |
| Cryptochironomus fulvus | | | | Diptera (Midge) |
| Cryptolabis bidenticulata | | | | Diptera (Crane Fly) |
| Cryptolabis brachyphallus | | | | Diptera (Crane Fly) |
| Cryptolabis mixta | | | | Diptera (Crane Fly) |
| Cryptolabis retrorsa | | | | Diptera (Crane Fly) |
| Cryptostemma alienum | | | | Heteroptera (Jumping Ground Bug) |
| Cryptostemma usingeri | | | | Heteroptera (Jumping Ground Bug) |
| Culex anips | | | | Diptera (Mosquito) |
| Culex apicalis | | | | Diptera (Mosquito) |
| Culex boharti | | | | Diptera (Mosquito) |
| Culex erythrothorax | | | | Diptera (Mosquito) |
| Culex pipiens | | | | Diptera (Mosquito) |
| Culex quinquefasciatus | | | | Diptera (Mosquito) |
| Culex reevesi | | | | Diptera (Mosquito) |
| Culex restuans | | | | Diptera (Mosquito) |
| Culex stigmatosoma | | Culex peus | | Diptera (Mosquito) |
| Culex tarsalis | | | | Diptera (Mosquito) |
| Culex territans | | | | Diptera (Mosquito) |
| Culex thriambus | | | | Diptera (Mosquito) |
| Culicoides baueri | | | | Diptera (Biting Midge) |
| Culicoides brookmani | | | | Diptera (Biting Midge) |
| Culicoides chckerelli cockerelli | Culicoides cockerelli cockerelli | Culicoides cockerellii | | Diptera (Biting Midge) |
| Culicoides cockerelli saltonensis | | Culicoides saltonensis | | Diptera (Biting Midge) |
| Culicoides copiosus | | | | Diptera (Biting Midge) |
| Culicoides crepuscularis | | | | Diptera (Biting Midge) |
| Culicoides haematopotus | | | | Diptera (Biting Midge) |
| Culicoides hieroglyphicus | | | | Diptera (Biting Midge) |
| Culicoides jamesi | | | | Diptera (Biting Midge) |
| Culicoides luteovenus | | | | Diptera (Biting Midge) |
| Culicoides mohave | | | | Diptera (Biting Midge) |
| Culicoides monoensis | | | | Diptera (Biting Midge) |
| Culicoides obsoletus | | | | Diptera (Biting Midge) |
| Culicoides palmerae | | | | Diptera (Biting Midge) |
| Culicoides reevesi | | | | Diptera (Biting Midge) |
| Culicoides stellifer | | | | Diptera (Biting Midge) |
| Culicoides tenuistylus | | | | Diptera (Biting Midge) |
| Culicoides tristriatulus | | | | Diptera (Biting Midge) |
| Culicoides unicolor | | | | Diptera (Biting Midge) |
| Culicoides usingeri | | | | Diptera (Biting Midge) |
| Culicoides utahensis | | | | Diptera (Biting Midge) |
| Culicoides variipennis | | | | Diptera (Biting Midge) |
| Culiseta impatiens | | | | Diptera (Mosquito) |
| Culiseta incidens | | | | Diptera (Mosquito) |
| Culiseta inornata | | | | Diptera (Mosquito) |
| Culiseta maccrackenae | | Culiseta particeps | | Diptera (Mosquito) |
| Cybister ellipticus | | | | Coleoptera (Predaceous Diving Beetle) |
| Cybister explanatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Cylloepus parkeri | | | | Coleoptera (Riffle Beetle) |
| Cymatotopus acrosticalis | | | invalid combo | |
| Cymbiodyta dorsalis | | | | Coleoptera (Water Scavenger Beetle) |
| Cymbiodyta imbellis | | | | Coleoptera (Water Scavenger Beetle) |
| Cymbiodyta pacifica | | | | Coleoptera (Water Scavenger Beetle) |
| Cymbiodyta puntatostriatus | Cymbiodyta punctatostriata | | | Coleoptera (Water Scavenger Beetle) |
| Dactylolabis damula | | | | Diptera (Crane Fly) |
| Dactylolabis imitata | | | | Diptera (Crane Fly) |
| Dactylolabis parviloba | | | | Diptera (Crane Fly) |
| Dasyhelea ancora | | | | Diptera (Biting Midge) |
| Dasyhelea atrata | | | | Diptera (Biting Midge) |
| Dasyhelea bifurcata | | Dasyhelea neobifurcata | | Diptera (Biting Midge) |
| Dasyhelea brookmani | | | | Diptera (Biting Midge) |
| Dasyhelea cincta | | | | Diptera (Biting Midge) |
| Dasyhelea festiva | | | | Diptera (Biting Midge) |
| Dasyhelea grisea | | | | Diptera (Biting Midge) |
| Dasyhelea johannseni | | | | Diptera (Biting Midge) |
| Dasyhelea mutabilis | | | | Diptera (Biting Midge) |
| Dasyhelea pallens | | | | Diptera (Biting Midge) |
| Dasyhelea pollinosa | | | | Diptera (Biting Midge) |
| Dasyhelea pricthardi | Dasyhelea pritchardi | | | Diptera (Biting Midge) |
| Dasyhelea sanctaemariae | | | | Diptera (Biting Midge) |
| Dasyhelea tenebrosa | | | | Diptera (Biting Midge) |
| Dasyhelea thomsenae | | | | Diptera (Biting Midge) |
| Dasyhelea tristyla | | | | Diptera (Biting Midge) |
| Deronectes addendus | | | | Coleoptera (Predaceous Diving Beetle) |
| Deronectes coelamboides | | | Nearctica | Coleoptera (Predaceous Diving Beetle) |
| Deronectes corpulentus | | | Nearctica | Coleoptera (Predaceous Diving Beetle) |
| Deronectes deceptus | | | | Coleoptera (Predaceous Diving Beetle) |
| Deronectes dolerosus | | | Nearctica | Coleoptera (Predaceous Diving Beetle) |
| Deronectes eximius | | | Nearctica | Coleoptera (Predaceous Diving Beetle) |
| Deronectes expositus | | | | Coleoptera (Predaceous Diving Beetle) |
| Deronectes funereus | | | Nearctica | Coleoptera (Predaceous Diving Beetle) |
| Deronectes griseostriatus | | | | Coleoptera (Predaceous Diving Beetle) |
| Deronectes panaminti | | | | Coleoptera (Predaceous Diving Beetle) |
| Deronectes quadrimaculatus | | | invalid combo | Coleoptera (Predaceous Diving Beetle) |
| Deronectes roffi | | | | Coleoptera (Predaceous Diving Beetle) |
| Deronectes striatellus | | Stictotarsus striatellus | | Coleoptera (Predaceous Diving Beetle) |
| Desmona bethula | | | | Trichoptera (Caddisfly) |
| Desmopachria dispersa | | | | Coleoptera (Predaceous Diving Beetle) |
| Desmopachria latissima | | | | Coleoptera (Predaceous Diving Beetle) |
| Deuterophlebia coloradensis | | | | Diptera (Mountain Midge) |
| Deuterophlebia shasta | | | | Diptera (Mountain Midge) |
| Diaulota brevipes | | Amblopusa brevipes | | Coleoptera (Rove Beetle) |
| Diaulota densissima | | | | Coleoptera (Rove Beetle) |
| Dichaeta atriventris | | Notiphila atriventris | | Diptera (Shore Fly) |
| Dicosmoecus atripes | | | | Trichoptera (Caddisfly) |
| Dicosmoecus unicolor | | | invalid combo | Trichoptera (Caddisfly) |
| Dicranaptycha laevis | Dicranoptycha laevis | | | Diptera (Crane Fly) |
| Dicranaptycha melampygia | Dicranoptycha melampygia | | | Diptera (Crane Fly) |
| Dicranaptycha occidentalis | Dicranoptycha occidentalis | | | Diptera (Crane Fly) |
| Dicranaptycha spinosissima | Dicranoptycha spinosissima | | | Diptera (Crane Fly) |
| Dicranaptycha stenophallus | Dicranoptycha stenophallus | | | Diptera (Crane Fly) |
| Dicronota cazieriana | Dicranota cazieriana | | | Diptera (Crane Fly) |
| Dicronota debilis | Dicranota debilis | | invalid combo | Diptera (Crane Fly) |
| Dicronota maculata | Dicranota maculata | | | Diptera (Crane Fly) |
| Dicronota nuptialis | Dicranota nuptialis | | | Diptera (Crane Fly) |
| Dicronota polymeroides | Dicranota polymeroides | | | Diptera (Crane Fly) |
| Dicronota reducta | Dicranota reducta | | Nearctica | Diptera (Crane Fly) |
| Dicronota tehama | Dicranota tehama | | | Diptera (Crane Fly) |
| Dicronota vanduzeei | Dicranota vanduzeei | | | Diptera (Crane Fly) |
| Dictya lobifera | | | | Diptera (Marsh Fly) |
| Dictya pictipes | | | | Diptera (Marsh Fly) |
| Dictya umbrarum | | | | Diptera (Marsh Fly) |
| Dictya umbroides | | | | Diptera (Marsh Fly) |
| Dimecoenia austrina | | | invalid combo | Diptera (Shore Fly) |
| Dimecoenia caesia | | | invalid combo | Diptera (Shore Fly) |
| Dimecoenia spinosa | | | | Diptera (Shore Fly) |
| Dimecoenia zurcheri | | | S. American species | Diptera (Shore Fly) |
| Dineutus solitarius | | | | Coleoptera (Whirlygig Beetle) |
| Diplectrona californica | | | | Trichoptera (Caddisfly) |
| Diploneura cornuta | | Dohrniphora cornuta | | Diptera (Humpbacked Fly) |
| Discocerina nadineae | | | | Diptera (Shore Fly) |
| Discocerina obscurella | | | | Diptera (Shore Fly) |
| Discocerina plumosa | | | Bulgarian species | Diptera (Shore Fly) |
| Discocerina trochanterata | | | | Diptera (Shore Fly) |
| Discocerina turgidula | | | | Diptera (Shore Fly) |
| Discomyza incurva | | | European species | Diptera (Shore Fly) |
| Discomyza maculipennis | | | | Diptera (Shore Fly) |
| Ditrichopera argyrostoma | Ditrichophora argyrostoma | | | Diptera (Shore Fly) |
| Ditrichopera atrata | Ditrichophora atrata | | | Diptera (Shore Fly) |
| Ditrichopera cana | Ditrichophora cana | | | Diptera (Shore Fly) |
| Ditrichopera lugubris | Ditrichophora lugubris | | | Diptera (Shore Fly) |
| Ditrichopera occidentalis | Ditrichophora occidentalis | | | Diptera (Shore Fly) |
| Ditrichopera valens | Ditrichophora valens | | | Diptera (Shore Fly) |
| Diura knowltoni | | | | Plecoptera (Stonefly) |
| Dixa aliciae | | | | Diptera (Dixid Midge) |
| Dixa californica | | | | Diptera (Dixid Midge) |
| Dixa chalonensis | Meringodixa chalonensis | | | Diptera (Dixid Midge) |
| Dixa hegemonica | | | | Diptera (Dixid Midge) |
| Dixa modesta | | | | Diptera (Dixid Midge) |
| Dixa rhathyme | | | | Diptera (Dixid Midge) |
| Dixa somnolenta | | Dixella cornuta | | Diptera (Dixid Midge) |
| Dixa xavia | | | | Diptera (Dixid Midge) |
| Dohrniphora venusta | | Dohrniphora divaricata | | Diptera (Humpbacked Fly) |
| Dolichopus acricola | | | | Diptera (Longlegged Fly) |
| Dolichopus aedequatus | Dolichopus adaequatus | | | Diptera (Longlegged Fly) |
| Dolichopus afflictus | Dolichopus affictus | | | Diptera (Longlegged Fly) |
| Dolichopus affluens | | | | Diptera (Longlegged Fly) |
| Dolichopus aldrichii | | | | Diptera (Longlegged Fly) |
| Dolichopus amnicola | | | | Diptera (Longlegged Fly) |
| Dolichopus andersoni | | | | Diptera (Longlegged Fly) |
| Dolichopus appendiculatus | | | | Diptera (Longlegged Fly) |
| Dolichopus bakeri | | | | Diptera (Longlegged Fly) |
| Dolichopus barbaricus | | | | Diptera (Longlegged Fly) |
| Dolichopus bruesi | | | | Diptera (Longlegged Fly) |
| Dolichopus californicus | | | | Diptera (Longlegged Fly) |
| Dolichopus canaliculatus | | | | Diptera (Longlegged Fly) |
| Dolichopus cavatus | | | | Diptera (Longlegged Fly) |
| Dolichopus completus | | | | Diptera (Longlegged Fly) |
| Dolichopus comptus | | | | Diptera (Longlegged Fly) |
| Dolichopus consanguineus | | | | Diptera (Longlegged Fly) |
| Dolichopus coquillittei | Dolichopus coquilletti | | | Diptera (Longlegged Fly) |
| Dolichopus corax | | | | Diptera (Longlegged Fly) |
| Dolichopus crenatus | | | | Diptera (Longlegged Fly) |
| Dolichopus cuprinus | | | | Diptera (Longlegged Fly) |
| Dolichopus duplicatus | | | | Diptera (Longlegged Fly) |
| Dolichopus formosus | | | | Diptera (Longlegged Fly) |
| Dolichopus grandis | | | | Diptera (Longlegged Fly) |
| Dolichopus hastatus | | | | Diptera (Longlegged Fly) |
| Dolichopus idahoensis | | | | Diptera (Longlegged Fly) |
| Dolichopus jugalis | | | | Diptera (Longlegged Fly) |
| Dolichopus manicula | | | | Diptera (Longlegged Fly) |
| Dolichopus monticula | Dolichopus monticola | | | Diptera (Longlegged Fly) |
| Dolichopus multisetosus | | | | Diptera (Longlegged Fly) |
| Dolichopus myosota | Dolichopus myosotus | | | Diptera (Longlegged Fly) |
| Dolichopus nigricauda | | | | Diptera (Longlegged Fly) |
| Dolichopus nigrimanus | | | | Diptera (Longlegged Fly) |
| Dolichopus obcordatus | | | | Diptera (Longlegged Fly) |
| Dolichopus occidentalis | | | | Diptera (Longlegged Fly) |
| Dolichopus paluster | | | | Diptera (Longlegged Fly) |
| Dolichopus penicillatus | | | | Diptera (Longlegged Fly) |
| Dolichopus plumipes | | | | Diptera (Longlegged Fly) |
| Dolichopus pollex | | | | Diptera (Longlegged Fly) |
| Dolichopus ramifer | | | | Diptera (Longlegged Fly) |
| Dolichopus scoparius | | Dolichopus finitus | | Diptera (Longlegged Fly) |
| Dolichopus squamosus | | | | Diptera (Longlegged Fly) |
| Dolichopus subcostatus | | | | Diptera (Longlegged Fly) |
| Dolichopus sufflavus | | | | Diptera (Longlegged Fly) |
| Dolichopus superbus | | | | Diptera (Longlegged Fly) |
| Dolichopus talus | | | | Diptera (Longlegged Fly) |
| Dolichopus tenuipes | | | | Diptera (Longlegged Fly) |
| Dolichopus uxorcula | | | | Diptera (Longlegged Fly) |
| Dolichopus viridis | | | | Diptera (Longlegged Fly) |
| Dolichopus walkeri | | | | Diptera (Longlegged Fly) |
| Dolophilodes aequalis | | | | Trichoptera (Caddisfly) |
| Dolophilodes distinctus | Dolophilodes distincta | | TWC | Trichoptera (Caddisfly) |
| Dolophilodes dorcus | Dolophilodes dorca | | TWC | Trichoptera (Caddisfly) |
| Dolophilodes novusamericanus | Dolophilodes novusamericana | | TWC | Trichoptera (Caddisfly) |
| Dolophilodes pollidipes | Dolophilodes pallidipes | | | Trichoptera (Caddisfly) |
| Donacia distincta occidentalis | Donacia distincta | | | Coleoptera (Leaf Beetle) |
| Donacia emarginata | | Plateumaris nitida | | Coleoptera (Leef Beetle) |
| Donacia germari | | | perhaps Plateumaris germari | Coleoptera (Leaf Beetle) |
| Donacia hirticollis | | | | Coleoptera (Leaf Beetle) |
| Donacia longicollis | | | perhaps Coleorozena or Metachroma | Coleoptera (Leaf Beetle) |
| Donacia piscatrix | | | | Coleoptera (Leaf Beetle) |
| Donacia proxima californica | Donacia proxima | | | Coleoptera (Leaf Beetle) |
| Donacia pubescens | | | | Coleoptera (Leaf Beetle) |
| Donacia pusilla pyritosa | Plateumaris pusilla | | MCZ Type Database - Harvard Univ | Coleoptera (Leef Beetle) |
| Donacia subtilis magistrigata | Donacia subtilis | | | Coleoptera (Leaf Beetle) |
| Drusinus edwardsi | | Pseudostenophylax edwardsi | | Trichoptera (Caddisfly) |
| Dryops arizonensis | | | | Coleoptera (Longtoed Water Beetle) |
| Dryops luridus | | | | Coleoptera (Longtoed Water Beetle) |
| Dubiraphia brunnescens | | | | Coleoptera (Riffle Beetle) |
| Dubiraphia giulianii | | | | Coleoptera (Riffle Beetle) |
| Dysmicohermes crepusculus | | | invalid combo | Megaloptera (Fishfly) |
| Dysmicohermes ingens | | | | Megaloptera (Fishfly) |
| Dythemis velox | | | | Odonata (Dragonfly) |
| Dytiscus anxius | | | | Coleoptera (Predaceous Diving Beetle) |
| Dytiscus dauricus | | | | Coleoptera (Predaceous Diving Beetle) |
| Dytiscus hatchi | | | | Coleoptera (Predaceous Diving Beetle) |
| Dytiscus marginalis | | | | Coleoptera (Predaceous Diving Beetle) |
| Dytiscus marginicollis | | | | Coleoptera (Predaceous Diving Beetle) |
| Ecclisomyia bilera | | | | Trichoptera (Caddisfly) |
| Ecclisomyia conspersa | | | | Trichoptera (Caddisfly) |
| Ecclisomyia maculosa | | | | Trichoptera (Caddisfly) |
| Ecclisomyia scylla | | Ecclisocosmoecus scylla | | Trichoptera (Caddisfly) |
| Ecclisomyia simulata | | Ecclisomyia maculosa | | Trichoptera (Caddisfly) |
| Edmundsius agilis | | | | Ephemeroptera (Mayfly) |
| Elliptera astigmatica | | | | Diptera (Crane Fly) |
| Elliptera clausa | | | | Diptera (Crane Fly) |
| Elodes apicalis | | | | Coleoptera (Marsh Beetle) |
| Elodes aquatica | | | | Coleoptera (Marsh Beetle) |
| Elodes hausmanni | | | invalid combo | Coleoptera (Marsh Beetle) |
| Elodes marginata | Elodes emarginata | | | Coleoptera (Marsh Beetle) |
| Elodes minuta | | | invalid combo | Coleoptera (Marsh Beetle) |
| Elodes nunenmacheri | | | | Coleoptera (Marsh Beetle) |
| Elophila brunnildalis | | | | Lepidoptera (Aquatic Moth) |
| Elophila kearfottalis | | | invalid combo | Lepidoptera (Aquatic Moth) |
| Elophila satanalis | | | | Lepidoptera (Aquatic Moth) |
| Elophila schaefferalis | | | invalid combo | Lepidoptera (Aquatic Moth) |
| Elophila truckeealis | | | | Lepidoptera (Aquatic Moth) |
| Elsianus moestus | | | | Coleoptera (Riffle Beetle) |
| Emplenota arenaria | | | marine sp. | |
| Emplenota pacifica | | | marine sp. | |
| Enallagma anna | | | | Odonata (Damselfly) |
| Enallagma boreale | | | | Odonata (Damselfly) |
| Enallagma carunculatum | | | | Odonata (Damselfly) |
| Enallagma civile | | | | Odonata (Damselfly) |
| Enallagma clausum | | | | Odonata (Damselfly) |
| Enallagma cyathigerum | | | | Odonata (Damselfly) |
| Enallagma praevarum | | | | Odonata (Damselfly) |
| Endalus limatulus | | Notiodes limatulus | | Coleoptera (Water Weevil) |
| Endalus limatulus | | Notiodes limatulus | | Coleoptera (Water Weevil) |
| Endalus limatulus | | Notiodes limatulus | | Coleoptera (Marsh Weevil) |
| Endalus limatulus | | Notiodes limatulus | | Coleoptera (Marsh Weevil) |
| Endalus ovalis | | Notiodes ovalis | | Coleoptera (Water Weevil) |
| Endalus ovalis | | Notiodes ovalis | | Coleoptera (Water Weevil) |
| Endalus ovalis | | Notiodes ovalis | | Coleoptera (Marsh Weevil) |
| Endalus ovalis | | Notiodes ovalis | | Coleoptera (Marsh Weevil) |
| Endeodes basalis | | | | Coleoptera (Soft-Winged Flower Beetle) |
| Endeodes blaisdelli | | | | Coleoptera (Soft-Winged Flower Beetle) |
| Endeodes collaris | | | | Coleoptera (Soft-Winged Flower Beetle) |
| Endeodes insularis | | | | Coleoptera (Soft-Winged Flower Beetle) |
| Endeodes rugiceps | | | | Coleoptera (Soft-Winged Flower Beetle) |
| Enochrus californicus | | | | Coleoptera (Water Scavenger Beetle) |
| Enochrus carinatus | | | | Coleoptera (Water Scavenger Beetle) |
| Enochrus conjunctus | | Enochrus hamiltoni | | Coleoptera (Water Scavenger Beetle) |
| Enochrus cristatus | | | | Coleoptera (Water Scavenger Beetle) |
| Enochrus cuspidatus | | | | Coleoptera (Water Scavenger Beetle) |
| Enochrus diffusus | | | | Coleoptera (Water Scavenger Beetle) |
| Enochrus fucatus | | Enochrus carinatus fucatus | | Coleoptera (Water Scavenger Beetle) |
| Enochrus hamiltoni pacificus | | Enochrus hamiltoni | | Coleoptera (Water Scavenger Beetle) |
| Enochrus hamiltoni pyretus | | Enochrus hamiltoni | | Coleoptera (Water Scavenger Beetle) |
| Enochrus lattiusculus | | | invalid combo | Coleoptera (Water Scavenger Beetle) |
| Enochrus obtusiusculus | | Enochrus cristatus | | Coleoptera (Water Scavenger Beetle) |
| Enochrus pectoralis | | Enochrus pygmaeus pectoralis | | Coleoptera (Water Scavenger Beetle) |
| Entomobrya clitellaria | | | | Collembola (Springtail) |
| Entomobrya laguna | | | | Collembola (Springtail) |
| Ephemerella cognata | | Serratella teresa | | Ephemeroptera (Mayfly) |
| Ephemerella coloradensis | | Drunella coloradensis | | Ephemeroptera (Mayfly) |
| Ephemerella delantala | | Attenella delantala | | Ephemeroptera (Mayfly) |
| Ephemerella doddsi | | Drunella doddsii | | Ephemeroptera (Mayfly) |
| Ephemerella euterpe | | Ephemerella maculata | | Ephemeroptera (Mayfly) |
| Ephemerella flavilinea | | Drunella flavilinea | | Ephemeroptera (Mayfly) |
| Ephemerella glacialis carsona | | Drunella grandis grandis | | Ephemeroptera (Mayfly) |
| Ephemerella hecuba | | Timpanoga hecuba hecuba | | Ephemeroptera (Mayfly) |
| Ephemerella heterocaudata | | Caudatella heterocaudata heterocaudata | | Ephemeroptera (Mayfly) |
| Ephemerella hystris | Ephemerella hystrix | Caudatella hystrix | | Ephemeroptera (Mayfly) |
| Ephemerella inermis | | Ephemerella excrucians | | Ephemeroptera (Mayfly) |
| Ephemerella infrequens | | Ephemerella dorothea infrequens | | Ephemeroptera (Mayfly) |
| Ephemerella levis | | Serratella levis | | Ephemeroptera (Mayfly) |
| Ephemerella lodi | | Eurylophella lodi | | Ephemeroptera (Mayfly) |
| Ephemerella maculata | | | | Ephemeroptera (Mayfly) |
| Ephemerella micheneri | | Serratella micheneri | | Ephemeroptera (Mayfly) |
| Ephemerella mollitia | | Ephemerella dorothea infrequens | | Ephemeroptera (Mayfly) |
| Ephemerella pelosa | | Drunella pelosa | | Ephemeroptera (Mayfly) |
| Ephemerella proserpina | | Drunella grandis ingens | | Ephemeroptera (Mayfly) |
| Ephemerella sierra | | Drunella spinifera | | Ephemeroptera (Mayfly) |
| Ephemerella soquele | | Attenella soquele | | Ephemeroptera (Mayfly) |
| Ephemerella spinifera | | Drunella spinifera | | Ephemeroptera (Mayfly) |
| Ephemerella spinosa | | Caudatella hystrix | | Ephemeroptera (Mayfly) |
| Ephemerella teresa | | Serratella teresa | | Ephemeroptera (Mayfly) |
| Ephemerella tibialis | | Serratella tibialis | | Ephemeroptera (Mayfly) |
| Ephemerella yosemite | | Drunella grandis ingens | | Ephemeroptera (Mayfly) |
| Ephydra auripes | | | | Diptera (Shore Fly) |
| Ephydra cinerea | | Ephydra gracilis | | Diptera (Shore Fly) |
| Ephydra macellaria | | &nb |