Phengaris alcon (Denis & Schiffermüller, 1775)
alcon blue
on Gentiana, Swertia
parasite
Larvae initially feed on the flower and fruits; older larvae are social parasites in ants nest (Myrmica species).
host plants
Gentianaceae, oligophagous
Gentiana asclepiadea, cruciata, pneumonanthe; Swertia perennis.
distribution within Europe
PESI (2021).
ei, larva, pupa
see Lepiforum.
synonyms
Maculinea alcon.
references
Bálint (1993b), Duffey (1993c), Dupont, Luquet, Demerges & Drouet (2013a), Lepiforum (2021), Sanetra, Güsten & Trusch (2015a|).