Silberfleck mother-of-pearl butterfly
| Silberfleck mother-of-pearl butterfly | ||||||||||||
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Silver- spot mother-of-pearl butterfly ( Boloria euphrosyne ) |
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| Boloria euphrosyne | ||||||||||||
| ( Linnaeus , 1758) |
The silver- flecked mother-of-pearl butterfly or violet mother-of-pearl butterfly ( Boloria euphrosyne ) is a butterfly (day butterfly ) of the genus Boloria in the family of the noble butterfly (Nymphalidae). The specific epithet is derived from Euphrosyne , one of the three graces from Greek mythology .
features
The moths reach a wingspan of 32 to 40 millimeters. As with other mother-of-pearl butterflies, their lightly lined upper sides of the wings show a dark pattern on an orange background. At the edge of the wing, submarginal spots are set off in triangular form, which are followed postdiscally by a series of dark points. In the disk region there are undulating patterns, and a round dark spot on each of the hind wings near the basal dark pattern.
The undersides of the hind wings are tinted brick-red and cream-colored and have a black, light-edged point near the base of the wings. Approximately in the middle of the hind wings there is a cream-colored band, in the middle of which a silver mother-of-pearl spot can be seen. The edge of the wing bears a chain of white spots, similar to a necklace made of pearls (in English the butterfly is called "pearl-bordered fritillary", French "Grand collier argenté").
Dorsal view
△ Anterior view
only a silver stain in the middle of the hind wing
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The caterpillars are about 25 millimeters long and are colored black. They have numerous black, ramified thorns, which are yellow at the base on the left and right of the back. But there are also completely black copies.
Similar species
- Brown-spotted mother-of-pearl butterfly ( Boloria selene ) - this relative, also known as the swamp-meadow mother-of-pearl butterfly, is somewhat smaller and shows submarginal spots on the upper side of the wing, which are angularly offset. Dark angles are also pronounced on the underside of the hind wing so that the light spots do not appear pearl-like. There are also three mother-of-pearl spots in a sand-colored band, as well as chestnut-colored cells next to them.
Occurrence
The animals occur in Europe , except in parts of the south, in Turkey , in Russia and in the north of Kazakhstan . They live on forest edges and clearings and poor meadows. They are common locally, but are in decline in many places.
Flight times
They fly in one generation from late April to July, in the south and in warm areas also in two from April to June and from July to September.
food
Food of the caterpillars
The caterpillars feed on rough violets ( Viola hirta ) and other types of violets .
Food of the adults
The moths suckle mainly on creeping gunsel ( Ajuga reptans ). The species has also been observed more rarely on creeping buttercups ( Ranunculus repens ), Bach speedwell ( Veronica beccabunga ) and various ring thistle species ( Carduus ).
development
The females lay their eggs on the forage plants or other small, herbaceous plants. The caterpillars overwinter in a dry, rolled-up leaf and pupate in April, and much later in the mountains.
swell
Individual evidence
- ^ Arnold Spuler: The butterflies of Europe . tape 1 . E. Schweitzerbartsche Verlagbuchhandlung, Stuttgart 1908, p. 26 .
- ↑ a b c d Heiko Bellmann : The new cosmos butterfly guide. Butterflies, caterpillars and forage plants. Franckh-Kosmos, Stuttgart 2003, ISBN 3-440-09330-1 , p. 164.
- ↑ a b c Tom Tolman, Richard Lewington: Die Tagfalter Europäische und Nordwestafrikas , p. 159f, Franckh-Kosmos Verlags-GmbH & Co, Stuttgart 1998, ISBN 3-440-07573-7
- ^ Günter Ebert: The butterflies of Baden-Württemberg , Volume 1, Tagfalter I; , ISBN 3-8001-3451-9 , pp. 475-481 "
- ^ Tristan Lafranchis: Papillons d'Europe. DIATHEO, Paris 2007. ISBN 978-2-9521620-1-2
Web links
- www.schmetterling-raupe.de
- Lepiforum e. V. Taxonomy and Photos
- Boloria (Clossiana) euphrosyne at Fauna Europaea