Idaea deversaria
Idaea deversaria
Idaea deversaria is a butterfly (moth ) from the family of the tensioner ( Geometridae ). The species is widespread in central and southern Europe.
Features
The moths have a wingspan of 22-28 millimeters. The ground color of the wings is straw-colored, often with an orange, or yellow. The transverse lines are brown and stand out most clearly from the base color. Very clearly, the corrugated outer transverse line, while the inner transverse line is often formed significantly weaker. The binding agent is usually relatively wide. On the hind wing the outer transverse line is often much weaker formed as on the fore wings; here is often the means binding the clearest trained drawing element. The Diskalflecke lie on the fore wings mostly in the median fillet or root- ward it. On the hind wings, they are almost always terminal to the center binding. The Saumfeld with the wavy line is often made somewhat darker than the ground color. In many instances also stains are present on the fringes.
The caterpillars are rather slim with Quereinschnürungen. They are reddish-brown to gray- yellow in color with dark edged back line. In the middle segments a dark diamond drawing is often present, but may be absent.
The doll is yellow-brown, slightly darker on the back end. The cremaster has six curved bristles.
Geographical distribution and habitat
The species is widespread in Europe, the focus is in South and South-East Europe. The range extends from France in the west to the Urals in the east; in the north to southern Fennoscandia. But you're lacking in the British Isles, the Netherlands and Denmark ( with the exception of Bornholm ). In the south, the species occurs in Morocco, in the Iberian Peninsula, many of the Mediterranean islands, Italy, the Balkans and Asia Minor. From there, the occurrence moves on through the Caucasus, northern Iran to Central Asia. The species is thermophilic and is north of the Alps limited to exposed, hot spots on southern slopes. In the Mediterranean it is very common in the maquis on sun-exposed areas in mixed forests. The kind north of the Alps usually limited to the hill zone to 500 meters above sea level. It rises in the northern Alps at up to about 1300 meters, in the Southern Alps and the Mediterranean up to 1800 meters. In Morocco and the Iberian Peninsula it is rarely found below 200 meters, usually only about 1000 meters to 2700 meters. Along the Mediterranean coast of France, in the Iberian Peninsula and in Morocco the type is represented by the subspecies idaea deversaria fallax.
Phenology and life
The moths fly in the northern part of the range in one generation from mid-June to end of July, in the southern parts of the range already by the end of May. North of the Alps, a partial second generation is very rare in the Mediterranean often formed which then flies from late August to late October. The moths are nocturnal. They fly to the artificial light sources and can bait.
The caterpillars eat only dried or wilted plant material. They are polyphagous and have been observed under the following plants or to their foliage: Rock Stonecrop (Sedum reflexum ), blackthorn (Prunus spinosa), oak (Quercus ), poplar (Populus ), Linden (Tilia ), loosestrife ( Lysimachia ), Hauhecheln ( ononis ) and sorrel ( Rumex ). In breeding, the caterpillars also take leaves of dandelion (Taraxacum officinale) and plantains ( Plantago ), as well as leaves of various shrubs and trees. In winter caterpillars have also been observed on the moss Hylocomium. The caterpillars overwinter and pupate in the spring.
System
The species was described in 1847 by Gottlieb August Herrich -Schäffer as Acidalia deversaria first time. Axel Hausmann lists nine synonyms for this species The species is currently divided into two subspecies: . I. deversaria deversaria and I. deversaria fallax Hausmann, 2003 fallax is usually somewhat smaller ( to 20 mm) and something in the base color.
Endangering
The species is classified in Bavaria, Mecklenburg- Vorpommern North Rhine- Westphalia and in Category 2, ie she is there at high risk. In Saxony and Rhineland -Palatinate it is in Category 3 (endangered ). In Lower Saxony, the species is threatened with extinction, but has always been rare.