Blue bog

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Blue bog
Blue bog (Plebejus optilete) (2) .jpg

Blue bog ( Plebejus optilete )

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Bluebirds (Lycaenidae)
Subfamily : Polyommatinae
Genre : Plebeian
Type : Blue bog
Scientific name
Plebeian optilete
( Knoch , 1781)
Underside of the wing of the blue moor
Blue-bog male (upper and lower wing)

The raised bog blue ( Plebejus optilete ), often incorrectly written as Plebeius optilete or bog blueberry blue, is a butterfly ( butterflies ) from the family of the blue lice (Lycaenidae).

features

butterfly

The moths reach a wingspan of about 24 to 28 millimeters. The upper sides of the wings are glossy violet-blue in the males, brown in the females with a slight lilac-blue over-dusting in the basal region . The forewings are strongly rounded at the apex . On the underside of the hind wings a very characteristic blue, inwardly strong orange colored eye spot can be seen near the anal corner . Occasionally there are one to three other, smaller and weaker, equally colored eye spots. Both undersides of the wings also show a large number of distinct black dots and spots on a gray-brown background.

Caterpillar, pupa

The adult caterpillars are pale green in color, have light yellow, black-lined side stripes and thin reddish hairs. The blunt-shaped pupa is pale green in color with yellow abdominal rings and has finely reddish hair on the front part.

Occurrence

The blue moor occurs from Central Europe eastwards through the climatically temperate zone to Japan . In Fennoscandinavia, the northernmost distribution extends to the North Cape , in the south to the western Alps . The species is also found in northwestern North America . In the Alps it can still be found at heights of up to 2500 meters.

Way of life

The moths fly in one generation from June to August. They are mainly native to raised bogs, bog meadows or bog heaths, where they occasionally suckle on the flowers of swamp blood-eye ( Potentilla palustris ) or marsh willowherb ( Epilobium palustre ). The caterpillars live from mid-June and feed on the leaves or flowers of various lower plants, for example:

The young caterpillars initially mainly eat older, hard leaves. They overwinter and feed on tender, new leaves in the spring of the following year.

Hazard and protection

The species occurs in different numbers in Germany, is threatened with extinction in some areas and is listed in Category 2 ( critically endangered) on the Red List of Endangered Species .

swell

Individual evidence

  1. ↑ Tom Tolman, Richard Lewington: The butterflies of Europe and Northwest Africa . Franckh-Kosmos, Stuttgart 1998, ISBN 3-440-07573-7 , p. 93 .
  2. ^ A b Walter Forster , Theodor A. Wohlfahrt : The butterflies of Central Europe. Volume 2: Butterflies. (Rhopalocera and Hesperiidae). Franckh'sche Verlagshandlung, Stuttgart 1955, DNB 456642188 .
  3. ↑ a b butterflies. 2. Special part: Satyridae, Libytheidae, Lycaenidae, Hesperiidae . In: Günter Ebert, Erwin Rennwald (eds.): The butterflies of Baden-Württemberg . 1st edition. tape 2 . Ulmer, Stuttgart (Hohenheim) 1991, ISBN 3-8001-3459-4 , pp. 356 .
  4. ↑ Manfred Koch : We identify butterflies. Volume 1: Butterfly. 4th enlarged edition. Neumann, Radebeul / Berlin 1966, DNB 457244224 .
  5. ↑ Hans-Josef Weidemann: Butterfly: observe, determine . Naturbuch-Verlag, Augsburg 1995, ISBN 3-89440-115-X , p. 294 .
  6. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany . Landwirtschaftsverlag, Münster 1998, ISBN 3-89624-110-9 .

literature

  • Butterflies. 2. Special part: Satyridae, Libytheidae, Lycaenidae, Hesperiidae . In: Günter Ebert, Erwin Rennwald (eds.): The butterflies of Baden-Württemberg . 1st edition. tape 2 . Ulmer, Stuttgart (Hohenheim) 1991, ISBN 3-8001-3459-4 .
  • Hans-Josef Weidemann: Butterflies: observe, determine . Naturbuch-Verlag, Augsburg 1995, ISBN 3-89440-115-X .

Web links

Commons : Hochmoor-Bläuling ( Agriades optilete )  - Collection of images, videos and audio files