Celastrina ladon

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Spring azure
Celastrina ladon 03745.JPG
Male, Cougar Mountain Regional Wildland Park, Washington, United States
Scientific classification
C. ladon
Binomial name
Celastrina ladon
(Cramer, 1780)

Celastrina ladon, the spring azure, is a butterfly of the family Lycaenidae. It is found in North America from Alaska and Canada south of the tundra, through most of the United States except the Texas coast, southern plain and peninsula Florida; south in the mountains to Colombia.

Since the publication of a monograph on the Lycaenopsis group of lycaenid genera in 1983 by Eliot & Kawazoe,[1] C. ladon has been considered by some taxonomic authorities to be a subspecies of C. argiolus (Linnaeus, 1758). Other authorities still consider C. ladon and related species C. neglecta and C. serotina, to be "full" species.[2][3][4][5][6]

Similar species[edit]


  1. ^ Eliot, J. N. and Kawazoe, A., 1983. Blue butterflies of the Lycaenopsis group: 1-309, 6 pls. London.
  2. ^ Cherry Gall Azure full species status, BugGuide.com
  3. ^ Spring Azure, Butterflies of Canada
  4. ^ Spring Azure Archived 2009-03-13 at the Wayback Machine, Butterflies and Moths of North America
  5. ^ Spring Azure, Encyclopedia of Life
  6. ^ Celastrina at Markku Savela's website on Lepidoptera

External links[edit]