Plant Parasites of Europe

leafminers, galls and fungi

Phengaris nausithous

Phengaris nausithous (Bergsträsser, 1779)

dusky large blue

on Sanguisorba


Larvae initially freely on the inflorescence; later social parasites in ants nests.

host plants

Rosaceae, monophagous

Sanguisorba officinalis.

distribution within Europe

PESI (2021).

egg, larva, pupa

see Lepiforum, Pyrgus.


Maculinea nausithous.


Aistleitner & Aistleitner (1996a), Bálint (1993b), Duffey (1993c), Dupont, Luquet, Demerges & Drouet (2013a), Lepiforum (2023), (2023), Šumpich (2017a).

Last modified 6.viii.2023