- Family: Brushfooted Butterflies (Four-footed Butterflies) – Nymphalidae
- Subfamily: Heliconians (Longwings) – Heliconiinae
- Wing span: Medium-sized, 33–45 mm (1.23–1.76 in.). Females larger than males.
- Wing upper side: Orange with black blotches.
- Wing underside: Forewing orange with black blotches. Basal half of hind wing different shades of white, reddish brown and beige. Black, sharp-lined, meandering stripe runs between inner and outer halves. Outer half of wing brownish violet, outer margin with row of triangular arcs with row of black spots at base. Most spots with light-coloured centre.
- Habitat: Rich and damp environments with broad-leaved forests.
- Flying time: Late June–late July.
- Overwintering form: Caterpillar.
- Larval foodplant: Violets and pansies (Viola).
- Endangerment: Endangered, protected in all of Finland.
Heliconians are sometimes divided into two groups according to their size. All of genus Boloria Heliconians belong in the “small” group. Titania’s fritillary is extremely rare and is perhaps easiest to recognize from the mainly brownish violet colour on the underside of the outer parts of its hind wings, and the edge has a row of arrow-shaped (v-shaped) marks, inside which there is a row of spots with partly white centres.
Females lay their eggs individually on or close to the host plant. Titania’s fritillary overwinters as a small caterpillar, and begins to eat only when spring arrives.