Nudaria mundana
Blank leaf - lichen Little Bear ( Nudaria mundana )
The Blank Wing lichen Little Bear ( Nudaria mundana ), also bare wing, Rock Blank leaf or lichen dwarf spinner called, is a butterfly (moth ) from the subfamily of the tiger moths ( Arctiinae ).
Features
The moths reach a wingspan of 19-23 millimeters ( 17 to 22 mm). They have light gray to parchment -colored wings that are slightly transparent. On the fore wings there are two dark gray to gray-brown, depending on the animal varying degrees, slightly washed Pip binding between them near the wing margin per a same colored dot sits. Near the Analwinkel can greatly faded, dark area be recognizable. Diskalfleck and transverse lines may be completely extinguished. The hind wings have the same coloring as the front wings, but do not have a drawing.
The egg is colored spherical and yellow.
The caterpillars are gray and carried on back two rows of protruding yellow spots. They are hairy gray.
The pupa is greenish white or yellowish and translucent. The dark eye-spots are easily visible. The back comprises two rows of dark spots.
Geographical distribution and habitat
The animals come in North and Central Europe east to Turkey before. They live mainly on fallow land with rocks and walls that are covered with lichens, and other damp places with lichen. In the mountains soar up to the tree line. A kind of rare occurrence that lives on rock lichens as a caterpillar. However, it can not be called in a narrower sense than hygrophilous: Locations are rock- sat, light deciduous forest slopes that are very dry during the day, sunny and warm, but at night covered by a distinct pool of cold air or cold air flow with high humidity.
Way of life
The Blank Wing lichens bear is one generation per year, flying the moth from late June to early August. The moths are nocturnal. They often sit on rocks and tree trunks. However, the males are much more active than the females. They fly at night also often artificial light sources. The caterpillars are found from September and after hibernation until June of the following year. The caterpillars feed primarily on algae that grow in shady places on rocks, but also of lichens and liverworts. They live on stones and rocks, which are covered with their food plants. They pupate under rocks or in lichens in an open, mesh-like weave. Often several fantasies are close together. In the Alps, the egg is the overwintering stage.