Pearl-bordered Fritillary
Pearl-bordered fritillary ( Boloria euphrosyne )
The pearl-bordered fritillary or Violet Fritillary ( Boloria euphrosyne ) is a butterfly ( butterfly ) of the family Nymphalidae ( Nymphalidae ).
- 3.1 food of the caterpillars
- 3.2 Food of the imagos
- 5.1 Notes and references
Features
The moths reach a wingspan of 32-40 millimeters. You have, like the other Fritillary, orange wing tops that are drawn in black. However, the drawing on the wing edge is no angular spots, but triangles represents the undersides of the hind wings are colored brick red and cream colored and have near the wing roots a black, light- edged point. Approximately in the middle of the hind wings runs a cream-colored binding, in the middle of a silver pearl spot is seen.
The caterpillars are about 25 mm long and are colored black. They carry numerous black, branched spines, which are the left and right of the back at the base yellow. But there are also completely black specimens.
Occurrence
The animals come in Europe, except in parts of the South, in Turkey, in Russia and in the north of Kazakhstan. They live along forest edges and clearings and meadows lean. They are locally common, but in many places strongly in decline.
Flight Times
They fly in one generation from late May to July in the south and in warm areas in two from April to June and from July to September.
Food
Food of the caterpillars
The caterpillars feed on Rauen Violet (Viola hirta ) and other violet species.
Food of the adult bees
The moths suck mainly creeping bugle ( Ajuga reptans ). Rare species was also creeping buttercup (Ranunculus repens ), Bach - speedwell ( Veronica beccabunga ) and various types of ring thistle ( Carduus ) were observed.
Development
The females lay their eggs on the food plants or other small, herbaceous plants. The caterpillars overwinter in a dry, rolled sheet and require up to the beginning of next summer to pupate close to the ground.