Hemistola chrysoprasaria
Female moths of Clematis Green tensioner ( Hemistola chrysoprasaria )
The Clematis Green Spanner ( Hemistola chrysoprasaria ), also known as Green forest vines tensioner, is a butterfly (moth ) from the family of the tensioner ( Geometridae ).
- 6.1 Notes and references
- 6.2 Literature
Features
Butterfly
The wingspan of the males is 25 to 33 millimeters, that of females 30 to 39 millimeters. All wings are strongly colored light green, but fade with increasing lifetime and then shimmering yellow-green to yellow- white. Characteristic features are an outer and an inner fainter, slightly curved and continuous white transverse line on the fore wings, the outer continues on the hind wings. Diskalflecke missing. The antennae of the males are easily combed, those of the females ciliated very short.
Egg
The newly deposited egg is green and turns shortly before hatching in dark shades. It is strongly flattened on both sides. The end of the egg is positioned laterally.
Caterpillar
The caterpillars show variable coloring. They are green at first, during the winter and spring, in turn, then a brownish green.
Doll
The doll has a green color.
Similar Species
Drawn is very similar Hemistola siciliana. However, this species is found only in central and southern Italy and Sicily, so that there is no geographical overlap to chrysoprasaria.
The larger green leaf ( Geometra papilionaria ) differs by the broken and jagged white horizontal lines.
Geographical distribution and occurrence
The distribution of the species extends from North Africa and the Iberian Peninsula for nearly all of Europe, eastwards to the Ural Mountains and the East Asia. It inhabits prefers warm slopes, forest edges, rear areas, gardens and parks.
Way of life
The moths fly in Central Europe univoltine in the months of June to August in the south, a second generation may occur. They are nocturnal and fly to artificial light sources. Wackerzapp describes the development of his time conducted under the name Geometra vernaria type as follows: The female lays the eggs in rod- like structures lined up along the sprouts from the food plant. The resulting hatching caterpillars have initially a green color, but change color to hibernation in brown hues in order to equalize the autumn also discolored brown branches, where they hibernate free. The first fresh plants sprouting in the spring they take without skinning back to the original green color. They feed on the leaves of various species clematis (Clematis ).
Subspecies
- Hemistola chrysoprasaria chrysoprasaria ( Central Europe, Turkey, Russia, the Caucasus, Georgia)
- Hemistola chrysoprasaria occidentalis ( southern Spain, southern Portugal, Morocco, Algeria, Tunisia)
Endangering
The Clematis Green tensioner is out on the red list of threatened species as not at risk.