Callophrys affinis

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Western green hairstreak
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Lycaenidae
Genus: Callophrys
Species: C. augustinus
Binomial name
Callophrys augustinus
(W.H. Edwards, 1862)[1]
  • Thecla affinis Edwards, 1862
  • Thecla apama Edwards, 1882
  • Callophrys apama r. homoperplexa Barnes & Benjamin, 1923

Callophrys affinis, the western green hairstreak or immaculate green hairstreak, is a butterfly of the Lycaenidae family. It is found in western Canada and the western United States.

The wingspan is 20 to 28 mm.[1] Adults are on the wing from early March to mid-June in one generation.[1]

The larvae feed on Eriogonum umbellatum.[2]


Listed alphabetically:[2]

  • C. a. affinis
  • C. a. albipalpis Gorelick, 2005 (New Mexico)
  • C. a. apama Edwards, 1882Arizona canyon green hairstreak (Arizona)
  • C. a. homoperplexa Barnes & Benjamin, 1923 (Colorado)
  • C. a. washingtonia Clench, 1944 (Washington)


  1. ^ a b c Western Green Hairstreak, Butterflies of Canada
  2. ^ a b Callophrys affinis at Markku Savela's Lepidoptera and Some Other Life Forms