• Local names

• Language	Vernacular name
  English	White-crescent Longtail

• Synonyms and other combinations

• Latin name	Author
  Eudamus alcaeus	Hewitson, 1867

• Codatractus (Caudatractus) alcaeus is a member of the clade Codatractus alcaeus:

• Species	Author
  Codatractus (Caudatractus) alcaeus	(Hewitson, 1867)
  Codatractus (Caudatractus) aminias	(Hewitson, 1867)
  Codatractus (Caudatractus) carlos	Evans, 1952
  Codatractus (Caudatractus) yucatanus	H. Freeman, 1977
  Codatractus (Codatractus) arizonensis	(Skinner, 1905)
  Codatractus (Codatractus) bryaxis	(Hewitson, 1867)
  Codatractus (Codatractus) cyledis	(Dyar, 1912)
  Codatractus (Codatractus) imalena	(A. Butler, 1872)
  Codatractus (Codatractus) melon	(Godman & Salvin, 1893)
  Codatractus (Codatractus) sallyae	A. Warren, 1995
  Telegonus (Rhabdoides) hyster	(Dyar, 1916)

• Links

• Language	Website	Authors
  	Butterflies and Moths of North America
  	Butterflies of America	A.Warren, K.Davis, M.Stangeland
  	North American Moth Photographers Group

The QR code below, when scanned, automatically opens a page with a description of this species. Placing the code on a label under the specimen, on poster or information board in a museum or exhibition will allow for quick and easy display of full information about the species on the smartphone of the interested person.