Lycaenidae Polyommatinae Polyommatini Phengaris arion Phengaris rebeli
Phengaris nausithous (Bergsträsser, 1779)
Dusky Large Blue
Azuré des paluds

Genus: Phengaris Doherty, 1891   Original genus: Papilio Linnaeus, 1758

Synonyms (genus):
   Maculinea Van Eecke, 1915
  Synonyms (species):
   arcas Rottemburg, 1775

Adult:
P. nausithous (© Teresa Farino)
Adults (mating), Tierras de la Reina, León, Spain, July 11, 2006
(Photo by Teresa Farino, Iberian Wildlife Tours)
P. nausithous (© Daniel Morel)
Adult, Les Rousses, 1060m, Jura, France, July 12, 2015
(Photo by Daniel Morel)
P. nausithous (© Bernard Fransen)
Adult, Moerputten, Netherlands, August 1, 2001
(Photo by Bernard Fransen, Photography of European Butterflies and Moths)
P. nausithous (© Bernard Fransen)
Adult, Moerputten, Netherlands, August 7, 2002
(Photo by Bernard Fransen, Photography of European Butterflies and Moths)

Foodplants:
Sanguisorba officinalis; larvae attended by ants Myrmica rubra

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