Boloria titania (Esper, 1793)
titania’s fritillary, purple bog fritillary
on Bistorta, etc.
parasite
Larvae freely on the leaves.
host plants
polyphagous
Bistorta officinalis; Viola biflora, mirabilis, reichenbachiana.
? Also Ulmus (Žikić ao).
distribution within Europe
PESI (2021).
egg, larva, pupa
see Lepiforum.
references
Lepiforum (2021), Žikić, Ritt, Colacci, ao (2019a).