Erebia triarius

English name:
De Prunner’s Ringlet
Full scientific name:
Erebia triarius (de Prunner, 1789)
Croatian name:
Trotočkasti planinski okaš

Red Book Category in EU: LC

Red Book Category in Croatia: NE

Wings span: 36-40 mm

Flight Period and Life Cycle

Flight period of Erebia triarius in Croatia
Flight period of Erebia triarius in Croatia

1 brood per year. Overwinters as caterpillar.

Distribution in Croatia

Distribution of Erebia triarius in Croatia
Distribution of Erebia triarius in Croatia

Dinara mountain. Check the included map.

External Morphology Characteristics

The upper side of the wings is brown with dark spots surrounded by orange color. At the top there is a dark spot containing three white dots located approximately on the same line. This is a distinctive characteristic. In males, both sides of wings are more dark than in females.

Behavior

Imago feeds with nectar of various flowers.

Caterpillar Host Plants

Family Poaceae.

Habitat

Grassland on the slopes and rocky terrains. Elevations: >1400m.

Literature

Tvrtković, N., Šašić, M., Mihoci, I., Vuković, M. & Bjelić, M.: Review of the butterfly fauna
(Hesperioidea & Papilionoidea) of the Dinara mountain range. Nat. Croat., Vol. 21, No. 2,
471–481, 2012, Zagreb.

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