The genus Callophrys consists of butterflies

Butterfly

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 in the family Lycaenidae

Lycaenidae

The Lycaenidae are the second-largest family of butterflies, with about 6000 species worldwide, whose members are also called gossamer-winged butterflies...

. It is apparently not monophyletic

Monophyly

In common cladistic usage, a monophyletic group is a taxon which forms a clade, meaning that it contains all the descendants of the possibly hypothetical closest common ancestor of the members of the group. The term is synonymous with the uncommon term holophyly...

, but which ones of the taxa

Taxon

|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...

 currently considered junior synonyms of Callophrys are actually valid genera remains to be determined.

The Old World

Old World

The Old World consists of those parts of the world known to classical antiquity and the European Middle Ages. It is used in the context of, and contrast with, the "New World" ....

 members of this genus are commonly known as green hairstreaks, while the North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

n ones are called elfins.

Species and notable subspecies

Listed alphabetically within groups.

• Callophrys affinis (Edwards, 1862) – Western Green Hairstreak, Immaculate Green Hairstreak
  • Callophrys affinis perplexa – California Green Hairstreak
• Callophrys amphichloros (Cabeau, 1923)
• Callophrys androflavus (Capuse, 1963)
• Callophrys apama (Edwards, 1882) – Canyon Green Hairstreak
• Callophrys avis Chapman, 1909 – Chapman's Green Hairstreak
• Callophrys barraguei (Dujardin, 1972)
• Callophrys bipunctata (Tutt, 1907)
• Callophrys borelis (Krulikovski, 1890)
• Callophrys brunnea (Tutt, 1907)
• 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 dumetorum
  Callophrys dumetorum
  The Coastal Green Hairstreak, Bramble Green Hairstreak, or Bluish Green Hairstreak is butterfly of the Lycaenidae family. It is found in coastal California and rarely in inland California. Subspecies oregonensis is known as the Oregon Green Hairstreak.The wingspan is 25–32 mm...
  
   (Boisduval, 1852) – Bramble Hairstreak, Coastal Green Hairstreak, Bluish Green Hairstreak
• Callophrys fervida (Staudinger, 1901)
• Callophrys foulquieri (Rivertigat, 1915)
• Callophrys gryneus
  Callophrys gryneus
  The Juniper Hairstreak is a butterfly native to North America. It belongs in the family Lycaenidae.-Description:For a key to the terms used see Lepidopteran glossary...
  
   (Hübner, 1819) – Juniper Hairstreak
  • Callophrys gryneus siva – Siva Juniper Hairstreak
• Callophrys herculeana (Pfeiffer, 1927)
• Callophrys homoperplexa (Barnes & Benjamin, 1923)
• Callophrys mcfarlandi (Clench & Ehrlich, 1960)
• Callophrys rubi (Linnaeus, 1758) – Green Hairstreak
• Callophrys sheridanii
  Callophrys sheridanii
  Callophrys sheridanii, common name Sheridan's Hairstreak and Sheridan's Green Hairstreak, is a butterfly in the Lycaenidae family. It is found along the south coast of British Columbia and parts of Nevada, Arizona, Saskatchewan, North Dakota, and New Mexico...
  
   W. H. Edwards, 1877 – Sheridan's Hairstreak, White-lined Green Hairstreak
• Callophrys washingtonia (Clench, 1945)

Incisalia group

• Callophrys augustinus
  Callophrys augustinus
  The Brown Elfin is butterfly of the Lycaenidae family. It is found in from Newfoundland north and west through the northern United States and the prairie provinces to Alaska. To the south it ranges in Appalachian Mountains to northern Georgia and northern The Brown Elfin is [[butterfly]] of the...
  
   (Westwood, 1852) – Brown Elfin
• Callophrys eryphon  (Boisduval, 1852) – Western Pine Elfin
• Callophrys fotis (Strecker, 1877)
• Callophrys henrici
  Callophrys henrici
  Henry's Elfin is a North American butterfly in the family Lycaenidae. In Canada it is found from southern Manitoba to southern Nova Scotia...
  
   (Grote& Robinson, 1867) – Henry's Elfin, Henry's Hairstreak
• Callophrys irus
  Callophrys irus
  The Frosted Elfin is a species of Lycaenidae that is native to North America.-Description:The wingspan ranges from , hindwings have one short tail. The top side of the wing is brown, males have long oval dark spots on the leading edge of their forewings...
  
   (Godart, [1824]) – Frosted Elfin Hairstreak
• Callophrys lanoraieensis
  Callophrys lanoraieensis
  The Bog Elfin is a species of Lycaenidae that is native to North America.-Description:The wingspan ranges from . It is a dull brown and tailless.The caterpillars eat Black Spruce .-Range:...
  
   (Sheppard, 1934) – Bog Elfin
• Callophrys mossii (Hy. Edwards, 1881) – Moss's Elfin
  • Callophrys mossii bayensis – San Bruno Elfin butterfly
• Callophrys niphon
  Callophrys niphon
  The Eastern Pine Elfin is a species of Lycaenidae that is native to North America.-Description:Similar to the Western Pine Elfin but has two dark bars instead of one in the forewing underside cell with strong patterning on the underside.The wingspan ranges from .-Life history:There is one flight...
  
   (Hübner, [1823]) – Eastern Pine Elfin
• Callophrys polios (Cook & Watson, 1907) – Hoary Elfin

Mitoura group

• Callophrys gryneus
  Callophrys gryneus
  The Juniper Hairstreak is a butterfly native to North America. It belongs in the family Lycaenidae.-Description:For a key to the terms used see Lepidopteran glossary...
  
   (Hübner, [1819]) – Juniper Hairstreak
• Callophrys hesseli (Rawson & Ziegler, 1950) – Hessel's Hairstreak
• Callophrys rosneri (Johnson, 1976) – Rosner's Hairstreak, Cedar Hairstreak
• Callophrys spinetorum (Hewitson, 1867) – Thicket Hairstreak

Xamia group

• Callophrys xami (Reakirt, [1867]) – Xami Hairstreak (southern Arizona
  Arizona
  Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...
  
   and Texas
  Texas
  Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
  
   south to Guatemala
  Guatemala
  Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...
  
  )

Unknown group

• Callophrys armeniaca Zhdanko, 1998
• Callophrys barryi (Johnson, 1976) – Barry's Hairstreak
• Callophrys butlerovi (Migranov, 1992)
• Callophrys chalybeitincta Sovinsky, 1905
• Callophrys danchenkoi Zhdanko, 1998
• Callophrys hatuma Zhdanko, [1996]
• Callophrys johnsoni (Skinner, 1904) – Johnson's Hairstreak
• Callophrys mcfarlandi (Clench & Ehrlich, 1960) – Sandia Hairstreak
• Callophrys mystaphia Miller, 1913
• Callophrys paulae Pfeiffer, 1932
• Callophrys perplexa Barnes & Benjamin, 1923
• Callophrys scaphia Clench, 1981
• Callophrys suaveola (Staudinger, 1881)
• Callophrys titanus Zhdanko, 1998