Melitaea didyma

English name:
Spotted Fritillary
Full scientific name:
Melitaea didyma (Esper, 1778)
Croatian name:
Crvena riđa

Red Book Category in EU: LC

Red Book Category in Croatia: NE

Wings span: 32-37 mm

Melitaea didyma, Velebit, 0621N9604
Melitaea didyma, Velebit, 0621N9604
Melitaea didyma, Velebit, 0621N9604
Melitaea didyma, Velebit, 0621N9604

Flight Period and Life Cycle

Flight period of Melitaea didyma in Croatia
Flight period of Melitaea didyma in Croatia

1-2 broods per year. Overwinters as caterpillar.

Distribution in Croatia

Distribution of Melitaea didyma in Croatia
Distribution of Melitaea didyma in Croatia

The entire territory. Check the included map.

External Morphology Characteristics

The upper side of the wings is orange-red. In the postdiscal zone of the underside of the hindwing there is a series of orange spots in the form of an orange stripe. Similar to Melitaea trivia. Below is the comparison of the underside of hindwing:

Melitaea didyma (left) vs Melitaea trivia (right), lateral view, wings closed
Melitaea didyma (left) vs Melitaea trivia (right), lateral view, wings closed

(1) In zone S4 at the edge of the cell, Melitaea trivia has a visible short vein that is absent in Melitaea didyma.
(2) In the margin, the dark spots are rounded in Melitaea didyma and a bit triangular in Melitaea trivia.

Behavior

Imago feeds with nectar of various flowers.

Caterpillar Host Plants

Plantago, Veronica and Digitalis species.

Habitat

Nutrient-poor grasslands. Edges of woodlands and bushes. Elevations: 0-1300m.

Gallery

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