| Scientific Name |
US Common Name |
Canada Common Name |
| Brephidium exile
|
Western Pygmy-blue
|
|
| Brephidium isophthalma pseudofea
|
Florida Pygmy-blue
|
|
| Brephidium isophthalma insularis
|
Island Pygmy-blue
|
|
|
|
|
|
| Leptotes cassius theonus
|
West Indian Blue
|
|
| Leptotes cassius striata
|
Striated Blue
|
|
| Leptotes marina
|
Marine Blue
|
Marine Blue
|
|
|
|
|
| Zizula cyna
|
Cyna Blue
|
|
|
|
|
|
| Cyclargus thomasi bethunibakeri
|
Miami Blue
|
|
| Cyclargus ammon
|
Nickerbean Blue
|
|
|
|
|
|
| Hemiargus ceraunus antibubastus
|
Ceraunus Blue
|
|
| Hemiargus ceraunus gyas
|
Edward’s Blue
|
|
| Hemiargus ceraunus zachaeina
|
Zachaeina Blue
|
|
|
|
|
|
| Echinargus isola alce
|
Reakirt’s Blue
|
Reakirt’s Blue
|
|
|
|
|
| Everes comyntas comyntas
|
Eastern Tailed Blue
|
Eastern Tailed Blue
|
| Everes comyntas texana
|
Texas Tailed Blue
|
|
| Everes comyntas sissona
|
Wright’s Tailed Blue
|
|
| Everes amyntula amyntula
|
Western Tailed Blue
|
Western Tailed Blue
|
| Everes amyntula valeriae
|
Valerie’s Tailed Blue
|
|
| Everes amyntula maritima
|
|
Maritime Tailed Blue
|
| Everes amyntula albrighti
|
Albright’s Tailed Blue
|
|
| Everes amyntula herri
|
Herr’s Tailed Blue
|
|
| Everes amyntula montanorum
|
Mountain Tailed Blue
|
|
| Everes amyntula nesiotes
|
Nesiotes Tailed Blue
|
|
|
|
|
|
| Celastrina ladon
|
Spring Azure
|
|
| Celastrina lucia
|
Lucia Azure
|
Lucia Azure
|
| Celastrina ?
|
Cherry Gall Azure
|
Cherry Gall Azure
|
| Celastrina idella idella
|
Holly Azure
|
|
| Celastrina idella ?
|
?
|
|
| Celastrina neglecta neglecta
|
Summer Azure
|
Summer Azure
|
| Celastrina neglecta argentata
|
Pale Summer Azure
|
Pale Summer Azure
|
| Celastrina neglectamajor
|
Appalachian Azure
|
|
| Celastrina echo echo
|
Echo Azure
|
Echo Azure
|
| Celastrina echo ?
|
? (California)
|
|
| Celastrina nigra
|
Dusky Azure
|
|
| Celastrina humulus
|
Hops Azure
|
|
| Celastrina ? nigrescens
|
Dark Blue Azure
|
Dark Blue Azure
|
| Celastrina ? cinerea
|
Arizona Azure
|
|
| Celastrina ? sidara
|
Sidara Azure
|
Sidara Azure
|
|
|
|
|
| Philotes sonorensis sonorensis
|
Sonora Blue
|
|
| Philotes sonorensis extinctus
|
Extinct Sonora Blue
|
|
| Philotes sonorensis
?
|
San Diego ?
|
|
| Philotes
sonorensis ?
|
Desert’s Edge Sonora Blue
|
|
| Philotes sonorensis
?
|
Monterey Sonora Blue
|
|
| Philotes sonorensis
?
|
Sierra Nevada Sonora Blue
|
|
|
|
|
|
| Euphilotes battoides battoides
|
Square-spotted Blue
|
|
| Euphilotes battoides allyni
|
El Segundo Blue
|
|
| Euphilotes battoides glaucon
|
Glaucon Blue
|
Glaucon Blue
|
| Euphilotes battoides argocyanea
|
?
|
|
| Euphilotes battoides fuscimaculata
|
?
|
|
| Euphilotes battoides australoglaucon
|
Southern Glaucon Blue
|
|
| Euphilotes battoides mazourka
|
Mazourka Square-spotted Blue
|
|
| Euphilotes battoides panamintensis
|
Panamint Square-spotted Blue
|
|
| Euphilotes battoides ?
|
Baking Powder Flat Blue
|
|
| Euphilotes intermedia intermedia
|
Intermediate Blue
|
|
| Euphilotes intermedia oregonensis
|
Oregon Intermediate Blue
|
|
| Euphilotes intermedia comstocki
|
Comstock’s Blue
|
|
| Euphilotes intermedia hadrochilus
|
Broad Bordered Blue
|
|
| Euphilotes centralis centralis
|
The Central Blue
|
|
| Euphilotes ancilla ancilla
|
Ancilla Blue
|
|
| Euphilotes ancilla columbiiae
|
Columbian Blue
|
Columbian Blue
|
| Euphilotes ancilla giulianii
|
Death Valley Blue
|
|
| Euphilotes ancilla purpura
|
? Ancilla Blue
|
|
| Euphilotes ancilla gilvatunica
|
? Ancilla Blue
|
|
| Euphilotes ancilla pseudointermedia
|
Sierran Ancilla Blue
|
|
| Euphilotes ancilla shieldsi
|
Shield’s Blue
|
|
| Euphilotes baueri baueri
|
Bauer’s Blue
|
|
| Euphilotes baueri orientis
|
?
|
|
| Euphilotes baueri vernalis
|
San Bernardino Mts. Blue
|
|
| Euphilotes bernardino bernardino
|
Bernardino Blue
|
|
| Euphilotes bernardino inyomontana
|
Desert Mountain Blue
|
|
| Euphilotes bernardino minuta
|
?
|
|
| Euphilotes bernardino martini
|
Martin’s Blue
|
|
| Euphilotes bernardino
?
|
Santa Monica Mts. Blue
|
|
| Euphilotes bernardino ?
|
Point Loma Blue
|
|
| Euphilotes ellisi ellisi
|
Ellis’ Desert Blue
|
|
| Euphilotes ellisi anasazi
|
Anasazi Desert Blue
|
|
| Euphilotes ellisi basinensis
|
Great Basin Blue
|
|
| Euphilotes ellisi euromojavensis
|
?
|
|
| Euphilotes ellisi avawartz
|
?
|
|
| Euphilotes mojave mojave
|
Mojave Blue
|
|
| Euphilotes mojave virginiensis
|
|
|
| Euphilotes enoptes enoptes
|
Dotted Blue
|
|
| Euphilotes enoptes bayensis
|
Bay Region Dotted Blue
|
|
| Euphilotes enoptes tildeni
|
Tilden’s Dotted Blue
|
|
| Euphilotes enoptes arenacola
|
? Dotted Blue
|
|
| Euphilotes enoptes smithi
|
Smith’s Dotted Blue
|
|
| Euphilotes enoptes langstoni
|
Langston’s Dotted Blue
|
|
| Euphilotes enoptes cryptorufes
|
? Dotted Blue
|
|
| Euphilotes enoptes aridorum
|
? Dotted Blue
|
|
| Euphilotes enoptes primavera
|
? Dotted BLue
|
|
| Euphilotes enoptes dammersi
|
Dammer’s Dotted Blue
|
|
| Euphilotes enoptes opacapulla
|
? Dotted Blue
|
|
| Euphilotes pallescens pallescens
|
Pallid Blue
|
|
| Euphilotes pallescens arenamontana
|
? Pallid Blue
|
|
| Euphilotes pallescens elvirae
|
Elvira’s Pallid Blue
|
|
| Euphilotes pallescens emmeli
|
Emmel’s Pallid Blue
|
|
| Euphilotes pallescens mattonii
|
Mattoni’s Pallid Blue
|
|
| Euphilotes pallescens ricei
|
? Pallid Blue
|
|
| Euphilotes pallescens confusa
|
? Pallid Blue
|
|
| Euphilotes pallescens calneva
|
? Pallid Blue
|
|
| Euphilotes spaldingi spaldingi
|
Spalding’s Blue
|
|
| Euphilotes spaldingi pinjuna
|
Pinjuna Bllue
|
|
| Euphilotes rita rita
|
Rita Blue
|
|
| Euphilotes rita coloradensis
|
Colorado Blue
|
|
|
|
|
|
| Philotiella speciosa
speciosa
|
Small Blue
|
|
| Philotiella speciosa bohartorum
|
Bohart’s Blue
|
|
| Philotiella speciosa septentrionalis
|
Northern Small Blue
|
|
| Philotiella speciosa purisima
|
? Small Blue
|
|
| Philotiella leona
|
Leona’s Little Blue
|
|
|
|
|
|
| Glaucopsyche piasus
piasus
|
Arrowhead Blue
|
|
| Glaucopsyche piasus sagittigera
|
Southern Arrowhead Blue
|
|
| Glaucopsyche piasus umbrosa
|
Smoky Arrowhead Blue
|
|
| Glaucopsyche piasus nevada
|
Nevada Arrowhead Blue
|
|
| Glaucopsyche piasus excubitus
|
Guardian Arrowhead Blue
|
|
| Glaucopsyche piasus toxeuma
|
Brown’s Arrowhead Blue
|
Brown’s Arrowhead Blue
|
| Glaucopsyche piasus gabrielinua
|
San Gabriel Arrowhead Blue
|
|
| Glaucopsyche piasus daunia
|
Daunia Arrowhead Blue
|
|
| Glaucopsyche lygdamus lygdamus
|
(Georgian) Silvery Blue
|
|
| Glaucopsyche lygdamus couperi
|
Couper’s Silvery Blue
|
Couper’s Silvery Blue
|
| Glaucopsyche lygdamus nittanyensis
|
Appalachian Silvery Blue
|
|
| Glaucopsyche lygdamus mildredae
|
|
Mildred’s Silvery Blue
|
| Glaucopsyche lygdamus afra
|
|
Afra (Silvery) Blue
|
| Glaucopsyche lygdamus jacki
|
Jack’s (Silvery) Blue
|
|
| Glaucopsyche lygdamus oro
|
Oro (Silvery) Blue
|
|
| Glaucopsyche lygdamus arizonensis
|
Arizona Silvery Blue
|
|
| Glaucopsyche lygdamus australis
|
Southern (Silvery) Blue
|
|
| Glaucopsyche lygdamus incognita
|
Behr’s Silvery Blue
|
|
| Glaucopsyche lygdamus paloverdesensis
|
Palos Verdes Blue
|
|
| Glaucopsyche lygdamus columbia
|
The Columbia Blue
|
Skinner’s (Silvery) Blue
|
| Glaucopsyche lygdamus sabulosa
|
Sand Dune Silvery Blue
|
|
| Glaucopsyche lygdamus pseudoxerces
|
False Xerces (Silvery) Blue
|
|
| Glaucopsyche lygdamus deserticola
|
Mojave Silvery Blue
|
|
| Glaucopsyche lygdamus minipunctum
|
Mini-spotted Silvery Blue
|
|
| Glaucopsyche lygdamus
?
|
|
|
| Glaucopsyche lygdamus
?
|
|
|
| Glaucopsyche xerces
|
Xerces Blue
|
|
|
|
|
|
| Vaga blackburni
|
Blackburn’s Blue
|
|
|
|
|
|
| Lycaeides idas empetri
|
|
Crowberry Blue
|
| Lycaeides idas aster
|
|
Newfoundland Blue
|
| Lycaeides idas alaskensis
|
|
Alaskan Blue
|
| Lycaeides idas scudderi
|
|
Scudder’s Blue
|
| Lycaeides idas lotis
|
Lotis Blue
|
|
| Lycaeides idas atrapraetextus
|
Dark-edged Blue
|
Dark-edged Blue
|
| Lycaeides idas sublivens
|
Dark (Northern) Blue
|
|
| Lycaeides idas longinus
|
Longinus Blue
|
|
| Lycaeides idas nobokovi
|
Nabokov’s Blue
|
|
| Lycaeides idas azureus
|
? Blue
|
|
| Lycaeides anna anna
|
Anna Blue
|
|
| Lycaeides anna ricei
|
Rice’s Blue
|
Rice’s Blue
|
| Lycaeides anna vancouverensis
|
|
? Blue
|
| Lycaeides melissa melissa
|
Melissa Blue
|
Melissa Blue
|
| Lycaeides melissa samuelis
|
Karner Blue
|
|
| Lycaeides melissa annetta
|
Annetta Blue
|
|
| Lycaeides melissa fridayi
|
Friday’s (Melissa) Blue
|
|
| Lycaeides melissa paradoxa
|
Orange Margined Blue
|
|
| Lycaeides melissa alateres
|
Round-wing Melissa Blue
|
|
|
|
|
|
| Plebejus saepiolus saepiolus
|
Greenish Blue
|
|
| Plebejus saepiolus amica
|
Amica Blue
|
Amica Blue
|
| Plebejus saepiolus whitmeri
|
Whitmer’s Blue
|
|
| Plebejus saepiolus gertschi
|
Gertsch’s Blue
|
|
| Plebejus saepiolus insulanus
|
|
Vancouver Island Blue
|
| Plebejus saepiolus hilda
|
Hilda Blue
|
|
| Plebejus saepiolus albomontanus
|
White Mountains Greenish Blue
|
|
| Plebejus saepiolus aureolus
|
? Blue
|
|
| Plebejus saepiolus littoralis
|
? Blue
|
|
| Plebejus saepiolus maculosus
|
? Blue
|
|
| Plebejus saepiolus rufescens
|
Great Basin Greenish Blue
|
|
| Plebejus emigdionis
|
San Emigdio Blue
|
|
|
|
|
|
| Icaricia icarioides icarioides
|
Boisduval’s Blue
|
|
| Icaricia icarioides albihalos
|
White-spotted Blue
|
|
| Icaricia icarioides argusmontana
|
Argus Mountains Blue
|
|
| Icaricia icarioides atascadero
|
Atascadero Blue
|
|
| Icaricia icarioides austinorurm
|
Austin’s Blue
|
|
| Icaricia icarioides eosierra
|
Eastern Sierra Blue
|
|
| Icaricia icarioides inyo
|
Inyo Boisduval’s Blue
|
|
| Icaricia icarioides panamintina
|
Panamint Blue
|
|
| Icaricia icarioides helios
|
Helios Blue
|
|
| Icaricia icarioides santana
|
Santa Ana Blue
|
|
| Icaricia icarioides mintha
|
Mintha Blue
|
|
| Icaricia icarioides fulla
|
Fulla Blue
|
|
| Icaricia icarioides pembina
|
Pembina Blue
|
Pembina Blue
|
| Icaricia icarioides lycea
|
Lycea Blue
|
|
| Icaricia icarioides fenderi
|
Fender’s Blue
|
|
| Icaricia icarioides ardea
|
Ardea Blue
|
|
| Icaricia icarioides buchholzi
|
Buchholz’s Blue
|
|
| Icaricia icarioides blackmorei
|
Blackmore’s Blue
|
Blackmore’s Blue
|
| Icaricia icarioides montis
|
Montis Blue
|
Montis Blue
|
| Icaricia icarioides pardalis
|
Pardalis Blue
|
|
| Icaricia icarioides parapheres
|
?
|
|
| Icaricia icarioides pheres
|
Pheres Blue
|
|
| Icaricia icarioides missionensis
|
Mission Blue
|
|
| Icaricia icarioides moroensis
|
Moro Blue
|
|
| Icaricia icarioides evius
|
Evius Blue
|
|
| Icaricia shasta shasta
|
Shasta Blue
|
|
| Icaricia shasta calchas
|
Calchas Blue
|
|
| Icaricia shasta pitkinensis
|
Brown’s Blue
|
|
| Icaricia shasta minnehaha
|
Minnehaha Blue
|
|
| Icaricia shasta pallidissima
|
Pale Shasta Blue
|
|
| Icaricia shasta charlestonensis
|
?
|
|
| Icaricia acmon acmon
|
Acmon Blue
|
|
| Icaricia acmon lutzi
|
Lutz’s Blue
|
|
| Icaricia acmon dedeckera
|
?
|
|
| Icaricia acmon spangelatus
|
Spangled Blue
|
|
| Icaricia acmon texana
|
Texas Blue
|
|
| Icaricia lupini lupini
|
Lupine Blue
|
|
| Icaricia ? lupini monticola
|
Clemence’s Blue
|
|
| Icaricia lupini chlorina
|
The Green Blue
|
|
| Icaricia lupini goodpasturei
|
Goodpasture’s Blue
|
|
| Icaricia lupini argentata
|
Silvered Lupine Blue
|
|
| Icaricia lupini alpicola
|
Alpine Lupine Blue
|
|
| Icaricia neurona
|
Orange-veined Blue
|
|
|
|
|
|
| Vacciniina optilete optilete
|
|
Cranberry Blue
|
| Vacciniina optilete yukona
|
|
Yukon Blue
|
|
|
|
|
| Agriades franklinii franklinii
|
|
(Canadian) Arctic Blue
|
| Agriades franklinii
?
|
|
Ellesmere Arctic Blue
|
| Agriades rusticus rusticus
|
Rustic Arctic Blue
|
|
| Agriades rusticus punctatus
|
Arizona Arctic Blue
|
|
| Agriades podarce podarce
|
Sierra Nevada Blue
|
|
| Agriades podarce klamathensis
|
Klamath Mountains Blue
|
|
| Agriades podarce cilla
|
Cilla Blue
|
|
| Agriades megalo megalo
|
Megalo Blue
|
Megalo Blue
|
| Agriades megalo bryanti
|
|
Bryant’s Arctic Blue
|
| Agriades megalo ?
|
|
(northern Alberta)
|
| Agriades ? lacustris
|
|
Lake-side Blue
|
| Agriades cassiope cassiope
|
Heather Blue
|
|
| Agriades cassiope kelsoni
|
Kelson’s Heather Blue
|
|
