| Agriades aquilo podarce | |
| Agriades aquilo rustica | |
| Agriades cassiope Emmel & Emmel, 1998 | Cassiope Blue |
| Agriades franklini | Franklin Blue |
| Agriades glandon Prunner, 1798 | 'Glandon' Arctic Blue |
| Agriades hylas Schiffermüller, 1776 | |
| Agriades optilete Knoch, 1781 | Cranberry Blue |
| Agriades podarce Felder, C. &..., 1865 | Arrowhead Arctic Blue |
| Agriades rustica rustica | Arctic blue |
| Agriades rusticus | |
| Agriades zullichi Hemming, 1933 | Zullich's Blue |
| Alaena bjornstadi Kielland, 1993 | |
| Alaena dodomaensis Kielland, 1983 | |
| Alaena exotica Collins & La..., 2005 | Jos Zulu |
| Allotinus portunus portunus | |
| Apuecla upupa Druce, 1907 | Upupa Hairstreak |
| Arhopala phaenops phaenops Felder, 1865 | |
| Arhopala silhetensis adorea de Nicéville, 1890 | Sylhet Oakblue |
| Aricia (Aricia) agestis Denis & Schi..., 1775 | Brown Argus |
| Aricia (Icaricia) acmon (Westwood, 1851) | ⇒ Plebejus acmon Westwood, 1851 |
| Aricia acmon cottlei F. Grinnell, 1916 | |
| Aricia (Icaricia) icarioides (Boisduval, 1852) | ⇒ Icaricia icarioides Boisduval, 1852 |
| Aricia icarioides daedalus (H.H. Behr, 1867) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia icarioides evius (J.B.A.D. Boi..., 1869) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia icarioides fulla (W.H. Edwards, 1870) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia icarioides icarioides J.B.A.D. Boi..., 1852 | |
| Aricia icarioides maricopa (T. Reakirt, 1866) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia icarioides mintha (W.H. Edwards, 1870) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia icarioides phileros (J.B.A.D. Boi..., 1869) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia icarioides spinimaculata (J.D. Gunder, 1926) | ⇒ Aricia icarioides icarioides J.B.A.D. Boi..., 1852 |
| Aricia (Icaricia) lupini Boisduval, 1869 | Lupine Blue |
| Aricia lupini acmon (tr.f. angelu..., 1930) | ⇒ Aricia lupini monticola V.L. Clémence, 1909 |
| Aricia lupini immaculata (F.H. Chermock, 1929) | ⇒ Aricia lupini lupini J.B.A.D. Boi..., 1869 |
| Aricia lupini lupini J.B.A.D. Boi..., 1869 | |
| Aricia lupini monticola V.L. Clémence, 1909 | |
| Aricia (Icaricia) saepiolus Boisduval, 1852 | Greenish Blue |
| Aricia saepiolus garthi (J.D. Gunder, 1928) | ⇒ Aricia saepiolus hilda J. Grinnell ..., 1907 |
| Aricia saepiolus hilda J. Grinnell ..., 1907 | |
| Aricia saepiolus saepiolus (tr.f. bohart..., 1932) | ⇒ Aricia saepiolus hilda J. Grinnell ..., 1907 |
| Aricia (Icaricia) shasta W.H. Edwards, 1862 | Shasta Blue |
| Aricia shasta zelmira Felder & Felder, 1865 | |
| Aricia antaegon J.B.A.D. Boi..., 1852 | |
| Aricia kelseyi W.S. Wright, 1930 | |
| Aricia labecula F.E. Watson ..., 1920 | |
| Atlides corcorani (Clench, 1942) | ⇒ Atlides halesus Cramer, 1779 |
| Atlides halesus Cramer, 1779 | Giant purple hairstreak |
| Atlides halesus corcorani (Clench, 1942) | ⇒ Atlides halesus Cramer, 1779 |
| Atlides halesus estesi Clench, 1942 | Great blue hairstreak |
| Atlides halesus halesus Cramer, 1777 | Eastern Great Purple Hairstreak |
| Brephidium exile (Boisduval, 1852) | ⇒ Brephidium exilis Boisduval, 1852 |
| Brephidium exilis Boisduval, 1852 | Fea Pygmyblue |
| Brephidium exilis coolidgei J.D. Gunder, 1925 | |
| Brephidium exilis exilis (Boisduval, 1852) | ⇒ Brephidium exilis isophthalma Herrich-Schä..., 1862 |
| Brephidium exilis isophthalma Herrich-Schä..., 1862 | Antillean Western Pygmy-Blue |
| Brephidium pseudofea (Morrison, 1873) | ⇒ Brephidium isophthalma Herrich-Schä..., 1862 |
| Callicista columella Fabricius, 1793 | |
| Callophrys (Callophrys) affinis (Edwards, 1862) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys affinis affinis W. H. Edwards, 1862 | Western Green Hairstreak |
| Callophrys affinis apama Edwards, 1882 | Apama Hairstreak |
| Callophrys affinis washingtonia (Clench, 1944) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys (Callophrys) apama (Edwards, 1882) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys apama homoperplexa (Barnes & Ben..., 1923) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys (Callophrys) avis Chapman, 1909 | Chapman's Green Hairstreak |
| Callophrys (Callophrys) comstocki (Henne, 1941) | ⇒ Callophrys sheridanii Carpenter, 1877 |
| Callophrys comstocki comstocki | Desert green hairstreak |
| Callophrys (Callophrys) dumetorum Boisduval, 1852 | 'Bramble' Bramble Hairstreak |
| Callophrys dumetorum oregonensis (Gorelick, 1969) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys dumetorum perplexa (Barnes & Ben..., 1933) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys (Callophrys) gryneus Hübner, 1819 | |
| Callophrys (Callophrys) mcfarlandi Clench & Ehr..., 1960 | |
| Callophrys (Callophrys) perplexa (Barnes & Ben..., 1923) | ⇒ Callophrys sheridanii Carpenter, 1877 |
| Callophrys perplexa pseudodumetorum (J.F. Emmel, ..., 1998) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys perplexa superperplexa (J.F. Emmel, ..., 1998) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Callophrys (Callophrys) sheridanii Carpenter, 1877 | 'Alpine' Sheridan's Hairstreak |
| Callophrys sheridanii comstocki (Henne, 1940) | ⇒ Callophrys sheridanii Carpenter, 1877 |
| Callophrys (Cisincisalia) johnsoni (Skinner, 1904) | ⇒ Callophrys johnsoni Skinner, 1904 |
| Callophrys (Cisincisalia) spinetorum Hewitson, 1867 | Blue Mistletoe Hairstreak |
| Callophrys spinetorum cuyamaca (W.S. Wright, 1922) | ⇒ Callophrys spinetorum Hewitson, 1867 |
| Callophrys (Incisalia) augustinus Westwood, 1852 | Brown Elfin |
| Callophrys augustinus concava (Austin, 1998) | ⇒ Callophrys augustinus Westwood, 1852 |
| Callophrys (Incisalia) eryphon Boisduval, 1852 | Western Pine Elfin |
| Callophrys (Incisalia) fotis Strecker, 1877 | Arizona Gray Elfin |
| Callophrys (Incisalia) henrici Grote & Robi..., 1867 | Balcones Elfin |
| Callophrys (Incisalia) irus (Godart, 1824) | ⇒ Callophrys henrici Grote & Robi..., 1867 |
| Callophrys (Incisalia) mossii H. Edwards, 1881 | Doudoroff Elfin |
| Callophrys (Incisalia) niphon Hübner, 1823 | Eastern Pine Elfin |
| Callophrys (Incisalia) polios (Cook & Watson, 1907) | ⇒ Callophrys polia Cook & Watson, 1907 |
| Callophrys (Mitoura) barryi (Johnson, 1976) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys barryi acuminata (K. Johnson, 1976) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys (Mitoura) gryneus Hübner, 1819 | 'Loki' Juniper Hairstreak |
| Callophrys gryneus juniperaria J.A.Comstock, 1925 | Cedar Hairstreak |
| Callophrys (Mitoura) johnsoni Skinner, 1904 | |
| Callophrys (Mitoura) muiri (H. Edwards, 1881) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys (Mitoura) nelsoni (J.B.A.D. Boi..., 1869) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys nelsoni exoleta (H. Edwards, 1881) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys (Mitoura) rosneri (Johnson, 1976) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys (Mitoura) spinetorum Hewitson, 1867 | |
| Callophrys (Mitoura) thornei (Brown, 1983) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys byrnei (K. Johnson, 1976) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys grynea siva | |
| Callophrys iroides (J.B.A.D. Boi..., 1852) | ⇒ Callophrys augustinus Westwood, 1852 |
| Callophrys loki (Skinner, 1907) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys ninus (W.H. Edwards, 1871) | ⇒ Callophrys spinetorum Hewitson, 1867 |
| Callophrys polia Cook & Watson, 1907 | Hoary elfin |
| Callophrys sheridani WH Edwards, 1877 | Small green hairstreak |
| Callophrys sheridani neoperplexa | Sheridan´s green hairstreak |
| Callophrys siva chalcosiva (H.K. Clench, 1981) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys siva juniperaria (J.A. Comstock, 1925) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys siva mansfieldi (G.W. Tilden, 1951) | ⇒ Callophrys gryneus Hübner, 1819 |
| Callophrys viridis (Edwards, 1862) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Calycopis atnius Herrich-Schä..., 1853 | Atnius Groundstreak |
| Calycopis cecrops Fabricius, 1793 | Red Banded Hairstreak |
| Calycopis isobeon Butler & Druce, 1872 | Dusky Blue Hairstreak |
| Candalides hyacinthina Semper, 1879 | Common Dusky Blue |
| Castalius mindarus Felder & Felder, 1865 | |
| Catochrysops plebeia Butler, 1898 | |
| Celastrina argiolus Linnaeus, 1758 | Atlantic azure |
| Celastrina argiolus echo W.H. Edwards, 1864 | |
| Celastrina argiolus ladon (Ménétriés..., 1857) | ⇒ Celastrina argiolus echo W.H. Edwards, 1864 |
| Celastrina argiolus pseudargiolus (Boisduval & ..., 1835) | ⇒ Celastrina argiolus cinerea Edwards, 1883 |
| Celastrina argiolus radon Cramer, 1780 | Spring azure |
| Celastrina echo (Edwards, 1864) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina humulus Scott & Wright, 1998 | Hops Azure |
| Celastrina ladon (Cramer, 1780) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina ladon echo Edwards, 1864 | Spring azure |
| Celastrina lucia (Kirby, 1837) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina neglecta W.H. Edwards, 1862 | Summer Azure |
| Celastrina nigra Forbes, 1960 | Dusky Azure |
| Celastrina pseudargiolus (Boisduval, 1833) | ⇒ Celastrina argiolus Linnaeus, 1758 |
| Celastrina serotina Pavulaan & W..., 2005 | Cherry Gall Azure |
| Celestrina ladon | Spring Azure |
| Chalybs janias Cramer, 1782 | Janias Greenstreak |
| Chilades parrhasius parrhasius | |
| Chlorostrymon simaethis Drury, 1773 | Key Lime Hairstreak |
| Chrysoritis thysbe psyche Pennington, 1967 | |
| Chrysoritis zeuxo zeuxo Linnaeus, 1764 | |
| Cupido (Cupido) minimus Fuessly, 1775 | Little Blue |
| Cupido (Everes) amyntula Boisduval, 1852 | Western tailed blue |
| Cupido (Everes) comyntas Godart, 1824 | Eastern Tail-blue |
| Cupido agriades | |
| Cupido damaeus Godart, 1823 | |
| Cupido dodgei (J.D. Gunder, 1927) | ⇒ Cupido amyntula Boisduval, 1852 |
| Cupido immaculata (J.A. Scott, 1981) | ⇒ Cupido amyntula Boisduval, 1852 |
| Cupido nestos Boisduval, 1869 | |
| Cupido pheres Boisduval, 1852 | |
| Cupido phileros Boisduval, 1869 | |
| Cupido podarce (Felder & Felder, 1865) | ⇒ Alaena exotica Collins & La..., 2005 |
| Cupido sissona (W.G. Wright, 1905) | ⇒ Cupido comyntas Godart, 1824 |
| Cyaniris neglecta Edwards, 1862 | |
| Cyanophrys amyntor Cramer, 1775 | Amyntor Greenstreak |
| Cyanophrys miserabilis Clench, 1946 | Clench's greenstreak |
| Deciduphagus augustinus (Westwood, , 1852) | ⇒ Callophrys augustinus Westwood, 1852 |
| Deudorix livia livia Klug, 1834 | |
| Echinargus alce Edwards, 1871 | |
| Echinargus isola (Reakirt, 1867) | ⇒ Habrodais poodiae J.W. Brown &..., 1982 |
| Elkalyce comyntas Godart, 1823 | |
| Epamera hemiargus hemiargus | |
| Epidemia dorcas (Kirby, 1837) | ⇒ Lycaena dorcas Kirby, 1837 |
| Epidemia helloides (Boisduval, 1852) | ⇒ Lycaena helloides Boisduval, 1852 |
| Epidemia zeroe (Boisduval, 1869) | ⇒ Lycaena mariposa Reakirt, 1866 |
| Euchrysops cnejus Fabricius, 1798 | Bean blue |
| Eumaeus atala Poey, 1832 | Atala |
| Euphilotes ancilla (Barnes & McD..., 1918) | ⇒ Euphilotes enoptes Boisduval, 1852 |
| Euphilotes battoides Behr, 1867 | 'Bernardino' Square-spotted Blue |
| Euphilotes battoides allyni Shields, 1975 | 'El Segundo' Square-Spotted Blue |
| Euphilotes baueri (Shields, 1975) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphilotes bernardino Barnes & McD..., 1916 | Bernardino Blue |
| Euphilotes bernardino battoides (bernardino b..., 1925) | ⇒ Euphilotes bernardino bernardino W. Barnes & ..., 1916 |
| Euphilotes bernardino bernardino W. Barnes & ..., 1916 | Bernardino Blue |
| Euphilotes bernardino martini Mattoni, 1954 | Bernardino dotted-blue |
| Euphilotes centralis (W. Barnes an..., 1917) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphilotes columbiae (Mattoni, 1954) | ⇒ Euphilotes enoptes Boisduval, 1852 |
| Euphilotes ellisi (Shields, 1975) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphilotes ellisii (Shields, 1975) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphilotes enoptes Boisduval, 1852 | 'Dammer's ' Dotted Blue |
| Euphilotes enoptes ancilla Barnes & McD..., 1918 | Ancilla Dotted Blue |
| Euphilotes enoptes cryptorufes Pratt & J. E..., 1998 | Cryptorufes Dotted Blue |
| Euphilotes enoptes dammersi J. A. Comsto..., 1933 | 'Dammer'S ' Dotted Blue |
| Euphilotes glaucon (Behr, 1867) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphilotes intermedia (Barnes & McD..., 1917) | ⇒ Euphilotes battoides Behr, 1867 |
| Euphilotes mojave (Watson & Com..., 1920) | ⇒ Euphilotes enoptes Boisduval, 1852 |
| Euphilotes pallescens (Tilden & Downey, 1955) | ⇒ Euphilotes rita W. Barnes & ..., 1916 |
| Euphilotes pallescens emmeli Shields, 1975 | Pallid Blue |
| Euphilotes pallescens pallescens Tilden & Downey, 1955 | Pallid Blue |
| Euphilotes rita W. Barnes & ..., 1916 | 'Pale' Rita Blue |
| Euphilotes rita pallescens Tilden & Downey, 1955 | 'Pale' Rita Blue |
| Euphilotes spaldingi Barnes & McD..., 1917 | Colorado-Plateau Blue |
| Euphilotes stanfordorum Opler & A. W..., 2009 | Stanfords´ Blue |
| Eupsychellus staphylus Fruhstorfer, 1919 | |
| Everes amputula | |
| Everes amyntula (Boisduval, 1852) | ⇒ Cupido amyntula Boisduval, 1852 |
| Favonius quercus (Linnaeus, 1758) | ⇒ Quercusia quercus Linnaeus, 1758 |
| Feniseca tarquinius Fabricius, 1793 | Harvester |
| Gaeides gorogon Boisduval, 1852 | |
| Glaucopsyche lygdamus Doubleday, 1842 | Behr Blue |
| Glaucopsyche lygdamus behri (australis F...., 1917) | ⇒ Glaucopsyche lygdamus orcus W. H. Edwards, 1869 |
| Glaucopsyche lygdamus colombia Skinner, 1917 | Northwestern silvery blue |
| Glaucopsyche lygdamus columbia Skinner, 1917 | Columbia Blue |
| Glaucopsyche lygdamus lygdamus (E. Doubleday, 1841) | ⇒ Glaucopsyche lygdamus orcus W. H. Edwards, 1869 |
| Glaucopsyche lygdamus oro Scudder, 1876 | Silvery Blue |
| Glaucopsyche lygdamus palosverdesensis E. Perkins &..., 1977 | Palos Verde Blue |
| Glaucopsyche lygdarmus | |
| Glaucopsyche piasus Boisduval, 1852 | Arrowhead Blue |
| Glaucopsyche piasus catalina (T. Reakirt, 1866) | ⇒ Glaucopsyche piasus sagittigera C. Felder & ..., 1865 |
| Glaucopsyche piasus daunia W. H. Edwards, 1871 | Arrowhead Blue |
| Glaucopsyche piasus lorquini (H.H. Behr, 1867) | ⇒ Glaucopsyche piasus sagittigera C. Felder & ..., 1865 |
| Glaucopsyche piasus piasus (Boisduval, 1852) | ⇒ Glaucopsyche piasus sagittigera C. Felder & ..., 1865 |
| Glaucopsyche piasus rhaea (J.B.A.D. Boi..., 1869) | ⇒ Glaucopsyche piasus sagittigera C. Felder & ..., 1865 |
| Glaucopsyche piasus sagittigera C. Felder & ..., 1865 | Arrowhead Blue |
| Glaucopsyche piasus umbrosa J. Emmel, T...., 1998 | Arrowhead Blue |
| Glaucopsyche sagittifera | |
| Glaucopsyche xerces ♰ (Boisduval, 1852) | ⇒ Glaucopsyche lygdamus Doubleday, 1842 |
| Habrodais grunus Boisduval, 1852 | Golden Hairstreak |
| Habrodais grunus herri (Field, 1938) | ⇒ Habrodais grunus Boisduval, 1852 |
| Habrodais grunus lorquini (Field, 1938) | ⇒ Habrodais grunus Boisduval, 1852 |
| Habrodais poodiae J.W. Brown &..., 1982 | Baja Hairstreak |
| Harkenclenus titus (Fabricius, 1793) | ⇒ Satyrium titus Fabricius, 1793 |
| Hemiargus (Hemiargus) hanno Stoll, 1790 | Common Blue |
| Hemiargus hanno astragala (W.G. Wright, 1905) | ⇒ Hemiargus hanno gyas W.H. Edwards, 1871 |
| Hemiargus hanno florencia (V.L. Clémence, 1914) | ⇒ Hemiargus hanno gyas W.H. Edwards, 1871 |
| Hemiargus ceraunus Fabricius, 1793 | Antillean Blue |
| Hemiargus ceraunus gyas Edwards, 1871 | Ceraunus Blue |
| Hemiargus isola Reakirt, 1866 | Alce Blue |
| Hemiargus isola alce Edwards, 1871 | Blackspotted solitary blue |
| Hemiargus zachaeina (Butler, 1874) | ⇒ Hemiargus ceraunus Fabricius, 1793 |
| Hemiolaus caeculus caeculus Hopffer, 1855 | Azure Hairstreak |
| Heodes agabinus | |
| Heodes cupreus Edwards, 1870 | |
| Heodes helloides | |
| Hypaurotia crysalus W. H. Edwards, 1873 | Colorado Hairstreak |
| Hypaurotis citima (Edwards, 1881) | ⇒ Hypaurotis crysalus Edwards, 1873 |
| Hypaurotis crysalus Edwards, 1873 | Colorado hairstreak |
| Hypaurotis crysalus citima H. Edwards, 1881 | Colorado Hairstreak |
| Hypochrysops arronica honora Grose Smith, 1898 | |
| Hypolycaena phorbas silo Fruhstorfer, 1912 | |
| Iaspis andersoni Robbins, 2010 | Anderson´s Hairstreak |
| Icaricia acmon (Westwood, 1851) | ⇒ Plebejus acmon Westwood, 1851 |
| Icaricia icarioides Boisduval, 1852 | Boisduval's blue |
| Icaricia icarioides fenderi Macy, 1931 | Boisduval´s Blue |
| Icaricia icarioides fulla W. H. Edwards, 1870 | Boisduval´s Blue |
| Icaricia icarioides missionensis Hovanitz, 1937 | Boisduval´s Blue |
| Icaricia icarioides pardalis Behr, 1867 | Boisduval´s Blue |
| Icaricia icarioides pheres Boisduval, 1852 | Boisduval´s Blue |
| Icaricia icaroides | |
| Icaricia lupini (Goodpasture, 1973) | ⇒ Aricia lupini Boisduval, 1869 |
| Icaricia lupini lupini Boisduval, 1869 | Lupine Blue |
| Icaricia monticola | |
| Icaricia neurona Skinner, 1902 | Veined Blue |
| Icaricia saepiolus W. H. Edwards, 1863 | Greenish blue |
| Icaricia shasta (Edwards, 1862) | ⇒ Aricia shasta W.H. Edwards, 1862 |
| Incisalia augustinus (Westwood, 1852) | ⇒ Callophrys augustinus Westwood, 1852 |
| Incisalia augustinus annetteae | Brown elfin |
| Incisalia augustinus iroides (Boisduval, 1852) | ⇒ Callophrys augustinus Westwood, 1852 |
| Incisalia eryphon (Boisduval, 1852) | ⇒ Callophrys eryphon Boisduval, 1852 |
| Incisalia eryphon eryphon | Western pine elfin |
| Incisalia fotis (Strecker, 1878) | ⇒ Callophrys fotis Strecker, 1877 |
| Incisalia fotis fotis | Desert elfin |
| Incisalia henrici (Grote & Robi..., 1867) | ⇒ Callophrys henrici Grote & Robi..., 1867 |
| Incisalia mossi doudoroffi dos Passos, 1940 | |
| Incisalia mossii bayensis | San Bruno elfin butterfly |
| Incisalia niphon (Hübner, 1823) | ⇒ Iridana bwamba Stempffer, 1964 |
| Incisalia polia obscurus Ferris & Fisher, 1973 | Hoary elfin |
| Iolana iolas Ochsenheimer, 1816 | Iolas Blue |
| Iolaus eurisus helius Fabricius, 1781 | |
| Jamides cyta zelia Fruhstorfer, 1916 | |
| Janthecla janthina Hewitson, 1867 | Janthina Hairstreak |
| Kisutam sillus | Sky-blue Groundstreak |
| Lamasina ganimedes Cramer, 1775 | Ganimedes Hairstreak |
| Lampides aegithus Fruhstorfer, 1916 | |
| Leptotes burdicki (Reakirt, 1868) | ⇒ Leptotes marina Reakirt, 1868 |
| Leptotes callanga Dyar, 1913 | |
| Leptotes cassius Cramer, 1775 | Cassius Blue |
| Leptotes marina Reakirt, 1868 | Marine Blue |
| Leptotes pirithous Linnaeus, 1767 | Common Zebra Blue |
| Leptotes violacea (Gunder, 1925) | ⇒ Leptotes marina Reakirt, 1868 |
| Lycaeides anna Edwards, 1861 | |
| Lycaeides argyrognomon lotis Lintner, 1878 | Lotis blue |
| Lycaeides argyronomon anna | |
| Lycaeides idas (Linnaeus, 1761) | ⇒ Plebejus hesperica Rambur, 1839 |
| Lycaeides melissa (Edwards, 1873) | ⇒ Plebejus melissa Edwards, 1873 |
| Lycaeides melissa lotis | |
| Lycaeides melissa melissa | |
| Lycaeides shasta | |
| Lycaena (Chalceria) dione Scudder, 1868 | Gray Copper |
| Lycaena (Chalceria) editha Mead, 1878 | Edith's copper |
| Lycaena editha montana Field, 1936 | Edith´s copper |
| Lycaena (Chalceria) gorgon Boisduval, 1852 | Buckweat Copper |
| Lycaena (Chalceria) heteronea Boisduval, 1852 | Blue Copper |
| Lycaena heteronea clara H. Edwards, 1880 | Blue Copper |
| Lycaena heteronea heteronea Boisduval, 1852 | Blue Copper |
| Lycaena (Chalceria) rubidus Behr, 1866 | 'White Mountains' Ruddy Copper |
| Lycaena rubidus sirius W. H. Edwards, 1871 | Ruddy Copper |
| Lycaena (Chalceria) xanthoides Boisduval, 1852 | Gray Copper |
| Lycaena xanthoides gunderi (C.N. Rudkin, 1933) | ⇒ Lycaena helloides Boisduval, 1852 |
| Lycaena xanthoides xanthoides Boisduval, 1852 | Great Copper |
| Lycaena (Epidemia) dorcas Kirby, 1837 | 'Maine' Dorcas Copper |
| Lycaena dorcas castro Reakirt, 1866 | Dorcas Copper |
| Lycaena dorcas helloides | Purplish copper |
| Lycaena (Epidemia) dospassosi (McDunnough, 1940) | ⇒ Lycaena dorcas Kirby, 1837 |
| Lycaena (Epidemia) epixanthe Boisduval & ..., 1835 | Bog Copper |
| Lycaena (Epidemia) helloides Boisduval, 1852 | Common purplish copper |
| Lycaena (Epidemia) hyllus Cramer, 1775 | Bronze Copper |
| Lycaena (Epidemia) mariposa Reakirt, 1866 | Forest Copper |
| Lycaena mariposa mariposa Reakirt, 1866 | Mariposa Copper |
| Lycaena (Epidemia) nivalis Boisduval, 1869 | Brown Copper |
| Lycaena nivalis browni dos Passos, 1938 | Lilac-bordered Copper |
| Lycaena nivalis nivalis Boisduval, 1869 | Lilac-bordered Copper |
| Lycaena (Hermelycaena) hermes Edwards, 1870 | Hermes Copper |
| Lycaena (Lycaena) cupreus (W. H. Edwards, 1870) | ⇒ Lycaena cuprea W. H. Edwards, 1870 |
| Lycaena cupreus artemisia | Lustrous copper |
| Lycaena cupreus snowi W. H. Edwards, 1881 | 'Snow'S' Lustrous Copper |
| Lycaena (Lycaena) phlaeas Linnaeus, 1761 | American Copper |
| Lycaena phlaeas polaris Courvoisier, 1911 | Arctic-alpine boreal copper |
| Lycaena (Tharsalea) arota Boisduval, 1852 | Tail Copper Butterfly |
| Lycaena arota nubila Comstock, 1926 | Tailed Copper |
| Lycaena arota schellbachi Tilden, 1955 | Schellbach´s Copper |
| Lycaena acmon (Westwood, 1851) | ⇒ Plebejus acmon Westwood, 1851 |
| Lycaena alciphron Rottenburg, 1775 | Purple-shot Copper |
| Lycaena baltoides baltoides | |
| Lycaena baltoides bernardino | |
| Lycaena baltoides intermedia | |
| Lycaena clarki Dickson, 1971 | Eastern Sorrel Copper |
| Lycaena cuprea W. H. Edwards, 1870 | Lustrous copper |
| Lycaena cuprea snowi WH Edwards, 1881 | Alpine lustrous copper |
| Lycaena cuprotus Olliff, 1886 | |
| Lycaena enoptes ancilla | |
| Lycaena eurymus | |
| Lycaena exilis (Lucas, 1889) | ⇒ Brephidium exilis Boisduval, 1852 |
| Lycaena mela (Strecker, 1900) | ⇒ Zizula cyna Edwards, 1881 |
| Lycaena nais Edwards, 1871 | |
| Lycaena neurona Skinner, 1902 | |
| Lycaena philemon Boisduval, 1869 | |
| Lycaena polyphemus Stetter-Stät..., 1937 | |
| Lycaena rhaea (Boisduval, 1869) | ⇒ Glaucopsyche piasus Boisduval, 1852 |
| Lycaena rubida sirius WH Edwards, 1871 | Rockymountain ruddy copper |
| Lycaena saepiolaus | |
| Lycaena saepiolus Boisduval, 1852 | |
| Lycaena shasta | |
| Lycaena snowi Edwards, 1883 | |
| Lycaena speciosa Edwards, 1877 | |
| Lycaena suasa (Boisduval, 1869) | ⇒ Satyrium fuliginosum W.H. Edwards, 1861 |
| Lycaena thoe Gray, 1832 | |
| Lycaena williamsi (J.D. Gunder, 1927) | ⇒ Lycaena helloides Boisduval, 1852 |
| Lysandra bellargus (Rottemburg, 1775) | ⇒ Polyommatus bellargus Rottemburg, 1775 |
| Lysandra coridon (Poda, 1761) | ⇒ Polyommatus coridon Poda, 1761 |
| Lysandra syngrapha Keferstein, 1851 | |
| Manastigma primno Godman & Salvin, 1887 | |
| Ministrymon azia Hewitson, 1873 | Azia hairstreak |
| Ministrymon leda Edwards, 1882 | Lead Hairstreak |
| Mitoura gryneus (Hübner, 1816) | ⇒ Callophrys gryneus Hübner, 1819 |
| Mitoura nelsoni (Hübner, 1819) | ⇒ Callophrys gryneus Hübner, 1819 |
| Mitoura siva (Hübner, 1819) | ⇒ Callophrys gryneus Hübner, 1819 |
| Mitoura siva chalcosiva Clench, 1981 | Coppery juniper hairstreak |
| Mitoura siva siva | Juniper hairstreak |
| Mitoura spinetorum (Hewitson, 1867) | ⇒ Callophrys spinetorum Hewitson, 1867 |
| Neozephyrus quercus (Linnaeus, 1758) | ⇒ Quercusia quercus Linnaeus, 1758 |
| Ornipholidotos peucetia peucetia Hewitson, 1866 | |
| Ostrinotes purpuriticus H. Druce, 1907 | Cryptic Hairstreak |
| Panthiades bathis (Fabricius, 1781) | ⇒ Panthiades bathildis C. Felder & ..., 1865 |
| Panthiades bitias Cramer, 1777 | Bitias Hairstreak |
| Parrhasius m-album Boisduval & ..., 1833 | White hairstreak |
| Penaincisalia incisalia (J.F. Le Crom..., 1997) | ⇒ Penaincisalia swarthea Le Crom & K...., 1997 |
| Phaedrotes piasus Boisduval, 1852 | |
| Phaeostrymon alcestis Edwards, 1871 | Soapberry Hairstreak |
| Philotes comstocki (Gunder, 1925) | ⇒ Philotes sonorensis C. Felder & ..., 1865 |
| Philotes nivium Boisduval, 1869 | |
| Philotes pallescens (Tilden & Downey, 1955) | ⇒ Euphilotes rita W. Barnes & ..., 1916 |
| Philotes regia (Boisduval, 1869) | ⇒ Philotes sonorensis C. Felder & ..., 1865 |
| Philotes sonoralba (Watson & Com..., 1920) | ⇒ Philotes sonorensis C. Felder & ..., 1865 |
| Philotes sonorensis C. Felder & ..., 1865 | Sonoran Blue |
| Philotiella leona Hammond & Mc..., 2000 | Leona Blue |
| Philotiella speciosa H. Edwards, 1877 | Pumice Dotted-Blue |
| Philotiella speciosa speciosa H. Edwards, 1877 | Small Blue |
| Plebeius idas argulus Frey, 1856 | |
| Plebejus (Agriades) aquilo Boisduval, 1832 | Arctic Blue |
| Plebejus (Agriades) glandon de Prunner, 1798 | Arctic Blue |
| Plebejus glandon rusticus WH Edwards, 1865 | Rocky Mountain Arctic Blue |
| Plebejus (Agriades) podarce (C. & R. Felder, 1865) | ⇒ Plebejus rustica Edwards, 1865 |
| Plebejus (Agriades) rustica Edwards, 1865 | |
| Plebejus (Albulina) optilete Knoch, 1781 | Cranberry Blue |
| Plebejus (Icaricia) acmon Westwood, 1851 | Acmon Blue |
| Plebejus acmon lutzi dos Passos, 1938 | Rockymountain silverstudded blue |
| Plebejus (Icaricia) icarioides (Boisduval, 1852) | ⇒ Icaricia icarioides Boisduval, 1852 |
| Plebejus icarioides ardea WH Edwards, 1871 | Boisduval´s blue |
| Plebejus (Icaricia) lupini (Boisduval, 1869) | ⇒ Aricia lupini Boisduval, 1869 |
| Plebejus lupini lutzi Passos, 1938 | Lupine blue |
| Plebejus (Icaricia) neurona Skinner, 1902 | Transvestite Blue |
| Plebejus (Icaricia) shasta (Edwards, 1862) | ⇒ Aricia shasta W.H. Edwards, 1862 |
| Plebejus shasta minnehaha Scudder, 1874 | Minnehaha Blue |
| Plebejus (Lycaeides) anna (Edwards, 1861) | ⇒ Plebejus idas Linnaeus, 1761 |
| Plebejus anna anna W. H. Edwards, 1861 | Anna´s Blue |
| Plebejus anna lotis Lintner, 1878 | Anna´s Blue |
| Plebejus (Lycaeides) fridayi (F. Chermock, 1945) | ⇒ Plebejus melissa Edwards, 1873 |
| Plebejus (Lycaeides) idas Linnaeus, 1761 | |
| Plebejus idas annette WH Edwards, 1882 | Wasatch northern blue |
| Plebejus (Lycaeides) melissa Edwards, 1873 | Common bordered blue |
| Plebejus melissa annetta W. H. Edwards, 1882 | Melissa Blue |
| Plebejus melissa melissa W. H. Edwards, 1873 | Melissa Blue |
| Plebejus (Plebejus) argus Linnaeus, 1758 | Silver-studded Blue |
| Plebejus argus micrargus Butler, 1878 | |
| Plebejus (Plebejus) argyrognomon Bergsträsser, 1779 | Northern blue |
| Plebejus (Plebejus) idas (Linnaeus, 1761) | ⇒ Plebejus idas Linnaeus, 1761 |
| Plebejus idas alaskensis F.Chermock, 1945 | Northern Blue |
| Plebejus (Plebejus) saepiolus (Boisduval, 1852) | ⇒ Lycaena clarki Dickson, 1971 |
| Plebejus saepiolus gertschi dos Passos, 1938 | Greenish blue |
| Plebejus saepiolus saepiolus Boisduval, 1852 | Greenish blue |
| Plebejus saepiolus whitmeri Brown, 1951 | |
| Plebejus (Plebijides) pylaon (Fischer von ..., 1832) | ⇒ Kretania pylaon Rambur, 1839 |
| Plebejus (Plebulina) emigdionis Grinnell, 1905 | Emigdio Blue |
| Plebejus (Vacciniina) optilete (Knoch, 1781) | ⇒ Plebejus optilete Knoch, 1781 |
| Plebejus aegus (Chapman, 1917) | ⇒ Plebejus argyrognomon Bergsträsser, 1779 |
| Plebejus armon | |
| Plebejus atrapraetextus Field, 1939 | |
| Plebejus callinicus Röber, 1886 | |
| Plebejus cassiope | ⇒ Agriades cassiope Emmel & Emmel, 1998 |
| Plebejus maricopa Reakirt, 1866 | |
| Plebejus pheres | |
| Plebius icarioides | |
| Plebulina emigdionis (Grinnell, 1905) | ⇒ Plebejus emigdionis Grinnell, 1905 |
| Polyommatus (Agrodiaetus) damon Denis & Schi..., 1775 | Damon Blue |
| Polyommatus (Lysandra) bellargus Rottemburg, 1775 | Adonis Blue |
| Polyommatus (Lysandra) coridon Poda, 1761 | Chalk Hill Blue |
| Polyommatus (Polyommatus) dorylas Denis & Schi..., 1775 | Albarracin Chalk-hill Blue |
| Polyommatus eros eros (Ochsenheimer, 1808) | ⇒ Polyommatus eros Ochsenheimer, 1808 |
| Polyommatus (Polyommatus) escheri Hübner, 1823 | Chalk-Hill Blue |
| Polyommatus (Polyommatus) icarus Rottemburg, 1775 | Common Blue |
| Polyommatus icarus celina (Austaut, 1889) | ⇒ Polyommatus celina Austaut, 1879 |
| Polyommatus athis athis FREYER, 1851 | |
| Polyommatus hypophlaeus | |
| Polyommatus soepiolus Boisduval, 0 | |
| Rapala rhoda sarata Fruhstorfer, 1914 | |
| Sarthusia sarthus ophion Hemming, 1933 | |
| Satyrium (Fixsenia) favonius Smith, 1797 | 'Northern' Oak Hairstreak |
| Satyrium (Satyrium) acadica W. H. Edwards, 1862 | Acadian Hairstreak |
| Satyrium (Satyrium) auretorum Boisduval, 1852 | Gold Hunter´s Hairstreak |
| Satyrium auretorum fumosum (J. Emmel & M..., 1990) | ⇒ Satyrium auretorum Boisduval, 1852 |
| Satyrium (Satyrium) behrii W.H. Edwards, 1870 | Behr's hairstreak |
| Satyrium behrii columbia McDunnough, 1944 | Behr´s Hairstreak |
| Satyrium (Satyrium) calanus Hübner, 1806 | Banded Hairstreak |
| Satyrium calanus calanus Hübner, 1809 | Banded Hairstreak |
| Satyrium (Satyrium) californica Edwards, 1862 | California Hairstreak |
| Satyrium (Satyrium) caryaevorus McDunnough, 1942 | Hickory Hairstreak |
| Satyrium (Satyrium) edwardsii Grote & Robi..., 1867 | Edward's hairstreak |
| Satyrium (Satyrium) fuliginosa (Edwards, 1861) | ⇒ Satyrium fuliginosum W.H. Edwards, 1861 |
| Satyrium (Satyrium) liparops Le Conte, 1833 | Striped Hairstreak |
| Satyrium (Satyrium) saepium Boisduval, 1852 | Buckthorn Hairstreak |
| Satyrium saepium caliginosum (Emmel, Emmel..., 1998) | ⇒ Satyrium titus Fabricius, 1793 |
| Satyrium saepium chalcis Edwards, 1869 | Hedgerow Hairstreak |
| Satyrium saepium chlorophora (Watson & Com..., 1920) | ⇒ Satyrium saepium Boisduval, 1852 |
| Satyrium saepium latalinea (Austin & Savage, 1998) | ⇒ Satyrium titus Fabricius, 1793 |
| Satyrium saepium obscurofuscum (Austin, 1998) | ⇒ Satyrium titus Fabricius, 1793 |
| Satyrium saepium okanagana | |
| Satyrium saepium provo (Watson & Com..., 1920) | ⇒ Satyrium saepium Boisduval, 1852 |
| Satyrium saepium rubrotenebrosum (Emmel, Emmel..., 1998) | ⇒ Satyrium titus Fabricius, 1793 |
| Satyrium saepium subaridum (Emmel, Emmel..., 1998) | ⇒ Satyrium titus Fabricius, 1793 |
| Satyrium (Satyrium) semiluna Klots, 1930 | Half-moon Hairstreak |
| Satyrium (Satyrium) sylvinus (Boisduval, 1852) | ⇒ Satyrium sylvinum Boisduval, 1852 |
| Satyrium sylvinus desertorum F. Grinnell, 1917 | Sylvan Hairstreak |
| Satyrium sylvinus dryope W. H. Edwards, 1870 | Sylvan Hairstreak |
| Satyrium sylvinus putnami H. Edwards, 1877 | Putnam'S Hairstreak |
| Satyrium (Satyrium) tetra Edwards, 1870 | Chaparral Hairstreak |
| Satyrium (Satyrium) titus Fabricius, 1793 | Coral Hairstreak |
| Satyrium titus immaculosis | Coral hairstreak |
| Satyrium adenostomatis (H. Edwards, 1877) | ⇒ Satyrium tetra Edwards, 1870 |
| Satyrium behri behri | Behr´s hairstreak |
| Satyrium behri crossi Field, 1938 | Rockymountain orange hairstreak |
| Satyrium borus (J.B.A.D. Boi..., 1869) | ⇒ Satyrium californica Edwards, 1862 |
| Satyrium calanum godarti Field, 1938 | Western banded hairstreak |
| Satyrium californicum WH Edwards, 1862 | California Hairstreak |
| Satyrium californicum obscurafacies (G.T. Austin, 1998) | ⇒ Satyrium californica Edwards, 1862 |
| Satyrium chalcis (W.H. Edwards, 1869) | ⇒ Satyrium saepium Boisduval, 1852 |
| Satyrium cygnus (W.H. Edwards, 1871) | ⇒ Satyrium californica Edwards, 1862 |
| Satyrium dryope W.H. Edwards, 1870 | |
| Satyrium fuliginosum W.H. Edwards, 1861 | Sooty Hairstreak |
| Satyrium fuliginosum semiluna | Sooty hairstreak |
| Satyrium fulvescens (H. Edwards, 1877) | ⇒ Satyrium saepium Boisduval, 1852 |
| Satyrium mirabelle (W. Barnes, 1900) | ⇒ Satyrium ilavia Beutenmüller, 1899 |
| Satyrium putnami S.H. Scudder, 1876 | |
| Satyrium spadix (H. Edwards, 1881) | ⇒ Satyrium auretorum Boisduval, 1852 |
| Satyrium sylvinum Boisduval, 1852 | Sylvan hairstreak |
| Satyrium sylvinum megapallidum G.T. Austin, 1998 | |
| Satyrium sylvinum putnami Hy Edwards, 1877 | Utah willow hairstreak |
| Satyrium tacita (H. Edwards, 1881) | ⇒ Satyrium auretorum Boisduval, 1852 |
| Satyrium w-album Knoch, 1782 | White Letter Hairstreak |
| Scolitantides orion battus Denis & Schi..., 1775 | |
| Serratofalca cerata Hewitson, , 1877 | |
| Sithon nedymond ismarus Fruhstorfer, 1912 | Plush |
| Strymon acis Drury, 1773 | Acis Hairstreak |
| Strymon auretorum | |
| Strymon avalona Wright, 1905 | Avalon Hairstreak |
| Strymon columella Fabricius, 1793 | Columella Hairstreak |
| Strymon columella clenchi G.T. Austin ..., 1998 | |
| Strymon istapa (Reakirt, 1867) | ⇒ Strymon columella Fabricius, 1793 |
| Strymon melinus Hübner, 1818 | Common hairstreak |
| Strymon melinus franki (W. D. Field, 1938) | ⇒ Strymon melinus Hübner, 1818 |
| Strymon pudica (H. Edwards, 1877) | ⇒ Strymon melinus Hübner, 1818 |
| Strymon saepium Boisduval, 1852 | |
| Strymon sylvinus Boisduval, 1852 | |
| Strymon titus immaculosus WP Comstock, 1913 | Immaculate coral hairstreak |
| Symbiopsis nippia (Dyar, 1918) | ⇒ Symbiopsis tanais Godman & Salvin, 1887 |
| Tajuria cippus frontinus Fruhstorfer, , 1912 | |
| Tajuria mantra jalysus C. & R. Felder, 1865 | |
| Tharsalea arota (Boisduval, 1852) | ⇒ Lycaena arota Boisduval, 1852 |
| Thecla amyntor (Cramer, 1779) | ⇒ Cyanophrys amyntor Cramer, 1775 |
| Thecla atymna (Hewitson, 1870) | ⇒ Penaincisalia atymna Hewitson, 1870 |
| Thecla augustinus (Westwood, 1852) | ⇒ Callophrys augustinus Westwood, 1852 |
| Thecla betulae Linnaeus, 1758 | Brown Hairstreak |
| Thecla biston (Möschler, 1876) | ⇒ Bistonina biston Möschler, 1877 |
| Thecla danaus Felder & Felder, 1865 | |
| Thecla enenia Hewitson, 1867 | |
| Thecla euptychia Draudt, 1920 | |
| Thecla gauna Boisduval, 1870 | |
| Thecla grunus (Boisduval, 1852) | ⇒ Habrodais grunus Boisduval, 1852 |
| Thecla hemon Cramer, 1775 | |
| Thecla heodes Druce, 1909 | |
| Thecla iroides (Boisduval, 1852) | ⇒ Callophrys augustinus Westwood, 1852 |
| Thecla johnsoni (Skinner, 1904) | ⇒ Callophrys johnsoni Skinner, 1904 |
| Thecla kali (Strecker, 1878) | ⇒ Satyrium behrii W.H. Edwards, 1870 |
| Thecla liparops Boisduval, 1833 | |
| Thecla lisus Stoll, 1790 | |
| Thecla m-album Boisduval & ..., 1833 | |
| Thecla melli Forster, 1946 | |
| Thecla mirabelle Barnes, 1900 | |
| Thecla mutina Hewitson, 1867 | |
| Thecla orcidia Hewitson, 1874 | |
| Thecla sheridanii Carpenter, 1877 | |
| Thecla spinctorum Boisduval, 0 | |
| Thecla syllis Godman & Salvin, 1887 | |
| Thecla syvix Dyar, 1916 | |
| Thecla tetra Edwards, 1870 | |
| Thecla tityrus Felder & Felder, 1865 | |
| Thecla togarna Hewitson, 1867 | |
| Thecla viridis (Boisduval, 1852) | ⇒ Callophrys dumetorum Boisduval, 1852 |
| Theorema eumenia Hewitson, 1865 | Pale-tipped Cycadian |
| Tomares ballus ballus Fabricius, 1787 | |
| Zizula cyna Edwards, 1881 | Cyna Blue |
| Zizula hylax hylax Fabricius, 1775 | Tiny Grass Blue |
| Zizula mela (F.H.H. Strecker, 1900) | ⇒ Zizula cyna Edwards, 1881 |
