Hydrelia flammeolaria
Yellow Striped alder tensioner ( Hydrelia flammeolaria )
The Yellow Striped alder tensioner ( Hydrelia flammeolaria ), also Gelbgewellter alder blade tensioner tensioner or kitten called, is a butterfly (moth ) from the family of the tensioner ( Geometridae ).
- 6.1 Notes and references
- 6.2 Literature
Features
The moths have a wingspan of 17-18 millimeters ( 16 to 20 millimeters). The front wings are bright yellow and have numerous ocher- yellow or orange-brown, very wavy to serrated, relatively wide transverse lines, and a small brown Diskalfleck. The hem has no lines or moons. The thickness and the color of the cross- lines may vary somewhat. Bergmann interprets the forms with broad cross- lines that merge to binding and the ground color largely overlap ( f confluens Hoffmann) as moisture forms. In the dry form, the lines are drawn sharper and paler.
Caterpillar and chrysalis
The slender caterpillar is approximately cylindrical in shape and has distinct segment incisions. It is colored light green, the segment cuts are whitish.
Geographical distribution and habitat
The species is distributed from the Iberian Peninsula and the British Isles in the west, central and eastern Europe, Siberia to the Russian Far East, northeastern China and Japan. The northern boundary of the distribution passes through the northern Fennoscandia, the southern boundary across southern Mediterranean Europe to the Balkans.
The species prefers moist deciduous forests, but also dry forests and thickets, hedges and forest belts of calcareous slopes, rocky semi-arid grassland and heathland. It also occurs in gardens and parklands. In the Alps, the nature rises to 1,600 meters. (or 2000 meters).
Way of life
The Yellow Striped alder tensioner is one generation per year, whose moth in Central Europe from mid-May to early August (focus middle of June / end of July to mid ) fly. The moths are active at night and rest during the day in the vegetation, but can be easily startled. At night they come to light. The oligophagen caterpillars feed mainly on alder leaves ( Alnus ). On the underside of the leaves they weave threads from the petiole to the blade tip, so that the sheet is bent slightly. The caterpillars hide during the day stretched out along the midrib between the threads and the underside of leaves. At night they come out of this hiding place and be active and eat the soft leaf material between the side ribs. In the literature, the following caterpillar food plants are called: gray alder ( Alnus incana ), maples ( Acer), including Norway maple (Acer platanoides ), field maple (Acer campestre ), birch (Betula ), Linden (Tilia ), beech ( Fagus sylvatica ) Goat Willow (Salix caprea ).
The pupa overwinters.
Systematics and Taxonomy
The species was described by as Phalaena flammeolaria first time scientifically. It is now assigned to the genus Hydrelia Hübner, 1825 in general. In previous work, the style is also among the younger synonym Geometra luteata Denis & Schiffer Müller, 1775 (for example with Eckstein ). Due to the variability separates Leraut (2009) following formae from:
- F confluens Hoffmann, 1917: the average cross lines flow together down the center to a binding
- F luteosignata Lempke, 1950: on the fore wing the cross- lines are dark yellow instead of yellow brown, so these specimens are less konstrastreich
- F brunneosignata Lempke, 1969: the transverse lines are dark brown yellow brown instead
- F fasciata Lempke, 1969. transverse lines define a broad transverse band on the front and rear wings.
Endangering
The species is widespread and locally as often. It is valid in Germany as not at risk.