Rhagades pruni
Dark Grünwidderchen ( rhagades pruni )
The Dark Grünwidderchen or heath Grünwidderchen ( rhagades pruni ) is a butterfly (moth ) from the family of burnet ( Zygaenidae ).
- 3.1 Flight Times
- 5.1 Notes and references
- 5.2 Literature
Features
The moths reach a wingspan of 20-25 millimeters. You have after hatching black-blue or blue-green forewings that are gray-brown then dark and lose their metallic luster. The hind wings are gray black. The antennae of the males are in contrast to the filamentary of the females strongly combed.
The egg is yellow, the females put them in small groups on the underside of leaves of the food plants from.
The caterpillars are about 15 mm long. They are broad black and orange vertical stripes, with black stripes on the back in the middle has a delicate light blue vertical bar and is bulged on each segment. They have a strong, medium long, bright hair.
The doll is black brown. The cocoon is whitish and is pieced on twigs and branches.
Subspecies
- Rhagades pruni callunae winder, 1906
- Rhagades pruni pruni ( Denis & Schiffer Müller, 1775)
Occurrence
The animals come from the Pyrenees across Central Europe to the Caucasus front. They are missing in the north and south of central Italy. As Different habitat residents they live both on Kalktrockenrasen, warm and nutrient-poor grasslands in dry and sandy areas as well as in bogs, where this is the case particularly in the foothills. They are very rare and in many places not occurring.
Way of life
The females lay their eggs in groups next to each other on the underside of the leaves of forage plants. The caterpillars develop only shortly before the winter and the winter with about three millimeters in length in a dream. It happens that the caterpillars occur in larger quantities and can defoliate plants. They pupate in a white cocoon on tree branches and their food plants.
The caterpillars feed vary by location. On Kalktrockenrasen they eat blackthorn (Prunus spinosa) and other rose plants such as Blackberry ( Rubus fruticosus ), Crataegus monogyna hawthorn (Crataegus monogyna), rarely Yellow Rockrose ( Helianthemum nummularium ). On xeric grasslands and moors they eat especially on heather ( Calluna vulgaris).
Flight Times
The diurnal moths fly in one generation a year from late June to August.
Threats and conservation
- Red List BRD: 3 (endangered )