The genus Callophrys Lycaenidae . It is apparently not monophyletic, but which of the taxa currently considered junior synonyms of Callophrys are actually valid genera remains to be determined.
The Old World (Asia and Europe) members of this genus are commonly known as green hairstreaks , while the North American ones are called elfins .
Listed alphabetically within groups.
Subgenus Callophrys Billberg , 1820
Callophrys affinis (Edwards, 1862) – western green hairstreak, immaculate green hairstreakCallophrys amphichloros (Cabeau, 1923) Callophrys androflavus (Capuse, 1963) Callophrys armeniaca Zhdanko, 1998 Callophrys apama (Edwards, 1882) – canyon green hairstreakCallophrys avis Chapman, 1909 – Chapman's green hairstreakCallophrys barraguei (Dujardin, 1972) Callophrys bipunctata (Tutt, 1907) Callophrys borelis (Krulikovski, 1890) Callophrys brunnea (Tutt, 1907) Callophrys butlerovi (Migranov, 1992) Callophrys caecus (Fourcroy, 1785) Callophrys caerulescens (Bang-Haas, 1912) Callophrys chalybeitincta Sovinsky, 1905 Callophrys cinerascens (Rebel, 1909) Callophrys comstocki (Henne, 1941) Callophrys connexa (Tutt, 1907) Callophrys davisi (Watson & Comstock, 1920) Callophrys danchenkoi Zhdanko, 1998 Callophrys dumetorum (Boisduval, 1852) – bramble hairstreak, coastal green hairstreak, bluish green hairstreakCallophrys fervida (Staudinger, 1901) Callophrys foulquieri (Rivertigat, 1915) Callophrys gryneus (Hübner, [1819]) – juniper hairstreakCallophrys hatuma Zhdanko, 1996 Callophrys herculeana (Pfeiffer, 1927) Callophrys homoperplexa (Barnes & Benjamin, 1923) Callophrys mcfarlandi (Clench & Ehrlich, 1960) – Sandia hairstreakCallophrys mystaphia Miller, 1913 – rhubarb hairstreakCallophrys paulae Pfeiffer, 1932 Callophrys perplexa Barnes & Benjamin, 1923 Callophrys rubi (Linnaeus, 1758) – green hairstreakCallophrys sheridanii (W. H. Edwards, 1877) – Sheridan's hairstreak, white-lined green hairstreakCallophrys suaveola (Staudinger, 1881) Callophrys titanus Zhdanko, 1998 Callophrys washingtonia (Clench, 1945) Subgenus Cisincisalia Johnson, 1992 :
Callophrys johnsoni (Skinner, 1904) – Johnson's hairstreakCallophrys spinetorum (Hewitson, 1867) – thicket hairstreakCallophrys guatemalena Clench, 1981 Subgenus Incisalia Scudder, 1872 :
Callophrys augustinus (Westwood, 1852) – brown elfinCallophrys eryphon (Boisduval, 1852) – western pine elfinCallophrys fotis (Strecker, 1878) – early elfinCallophrys henrici (Grote & Robinson, 1867) – Henry's elfinCallophrys irus (Godart, 1824) – frosted elfinCallophrys lanoraieensis Sheppard, 1934 – bog elfinCallophrys mossii (Hy. Edwards, 1881) – Moss's elfin, stonecrop elfin, Schryver's elfinCallophrys niphon (Hübner, 1819) – eastern pine elfinCallophrys polios Cook & Watson, 1907 – hoary elfinSubgenus Mitoura Scudder, 1872 :
Callophrys barryi (K. Johnson, 1976) – Barry's hairstreakCallophrys gryneus (Hübner, 1819) – olive hairstreak, juniper hairstreakCallophrys hesseli (Rawson & Ziegler, 1950) – Hessel's hairstreakCallophrys muiri (H. Edwards, 1881) – Muir's hairstreakCallophrys rosneri (Johnson, 1976) – Rosner's hairstreak, cedar hairstreakCallophrys thornei (Brown, 1983) – Thorne's hairstreak
Subgenus Sandia Clench & Ehrlich, 1960 :
Callophrys mcfarlandi Ehrlich & Clench, 1960 – Sandia hairstreakSubgenus Xamia Clench, 1961 :
Callophrys xami (Reakirt, 1867) – xami hairstreak (southern Arizona and Texas south to Guatemala )Callophrys scaphia Clench, 1981
Subgenus Ahlbergia Bryk, 1946
Callophrys aleucopuncta K. Johnson, 1992 Callophrys arquata K. Johnson, 1992 Callophrys bimaculata K. Johnson, 1992 Callophrys caerulea K. Johnson, 1992 Callophrys caesius K. Johnson, 1992 Callophrys chalcidis I. Chou & H.H. Li, 1994 Callophrys chalybeia (Leech, 1890) Callophrys circe (Leech, 1893) Callophrys clarofacia (K. Johnson, 1992) Callophrys clarolinea (H. Huang & A.M. Chen, 2006) Callophrys confusa (H. Huang, Z. Chen & M. Li, 2006) Callophrys distincta H. Huang, 2003 Callophrys dongyui (H. Huang & C.H. Zhan, 2006) Callophrys ferrea (Butler, 1866) Callophrys frivaldszkyi (Lederer, 1855) Callophrys haradai (Igarashi, 1973) Callophrys hsui (K. Johnson, 2000) Callophrys korea K. Johnson, 1992 Callophrys leechii (de Nicéville, [1893]) Callophrys leechuanlungi (H. Huang & Y.C. Chen, 2005) Callophrys leei (K. Johnson, 1992) Callophrys luoliangi (H. Huang & K. Song, 2006) Callophrys lynda (K. Johnson, 1992) Callophrys nicevillei (Leech, 1893) Callophrys pictila K. Johnson, 1992 Callophrys pluto (Leech, 1893) Callophrys prodiga K. Johnson, 1992 Callophrys unicolora K. Johnson, 1992 Callophrys zhujianhuai H. Huang & C.S. Wu, 2003 Unnamed genus:
Callophrys dospassosi Clench, 1981 Callophrys estela Clench, 1981 
