Dusky large blue

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Dusky large blue
Conservation status
Near Threatened  (IUCN 2.3)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Lycaenidae
Genus:	Phengaris
Species:	P. nausithous
Binomial name
Phengaris nausithous (Bergsträsser, 1779)[2]
Synonyms
Glaucopsyche nausithous Maculinea nausithous (Bergsträsser, 1779) Lycaena arcas Rott.

The dusky large blue (Phengaris nausithous) is a species of butterfly in the family Lycaenidae. It is found in Armenia,^[3] Austria, Azerbaijan, Belarus, Bulgaria, Czech Republic, France, Georgia, Germany, Hungary, Kazakhstan, Moldova, Montenegro, the Netherlands, Poland, Romania, Russia, Slovenia, Spain, Switzerland, and Ukraine.^[1][4]

The life cycle of this species is strongly related to the herbaceous plant Sanguisorba officinalis (great burnet).^[2]