Erebia tyndarus
Iridescent Ringlet ( Erebia Tyndarus )
The Iridescent Ringlet ( Erebia Tyndarus ) is a butterfly ( butterfly ) of the family Nymphalidae ( Nymphalidae ).
- 5.1 Notes and references
- 5.2 Literature
Features
Butterfly
The forewings of the moths, which have a wingspan of about 26 to 32 millimeters, dark brown in color and show a green or green-gold luster, who is also responsible for the German name of the species. This play of colors caused by interference of sunlight on the wing scales. Other features are a mostly pale orange-brown binding, whereas stand two small, black, white cored eye patch at the apex clearly. The rear wing undersides are mottled light gray, yellow -gray, light brown to dark brown, sometimes slightly dusted olive brown and have a more or less sharply defined, broad, darker contrasting, curved, strongly serrated binding.
Egg, caterpillar, pupa
The egg is greenish, oval and shows many longitudinal ribs. The caterpillars are gray-green to gray -brown and have a dark dorsal line, two dark side lines and dark spots in addition to the stigmata. In addition, a dark longitudinal line runs above the feet. The brown-colored doll has a short, thick shape.
Similar Species
Large similarity to the slightly smaller type Erebia cassioides, but less greenish shimmer, slightly narrower and less rounded front wings, and on the underside of the hindwing shows a high-contrast, bright drawing. A certain similarity exists also for soft, silky ringlet ( Erebia gorge ), but rather the violet-red shimmers, less rounded wings and often has more than two Apikalflecke. However, the main difference is the darker color of the hind wings back at gorge. .
Distribution and habitat
The Iridescent Ringlet occurs in the Alps before at altitudes of about 1600 to 3000 meters. The type preferably flies on kurzrasigen alpine meadows and is there places very numerous.
Way of life
The moths live in a generation from late June to early September. They fly low over meadows, occasionally suck on the flowers of preferably yellow mountain flowers and love to bask on rocks, with the greenish gloss sheen of the wings is very attractive advantage. The caterpillars feed on various types of fescue ( Festuca ).
Endangering
In Germany the nature of the Bavarian Alps, is found only in some places and is out on the red list of endangered species in category R (extremely rare species with geographical restriction ).