Oak Hook-tip

Oak Sichelflügler ( Watsonalla binaria )

The Oak Sichelflügler or two-point Sichelflügler ( Watsonalla binaria ) is a butterfly of the family of Sichelflügler ( Drepanidae ).

  • 3.1 Flight times and caterpillars
  • 6.1 Notes and references
  • 6.2 Literature

Features

The moths are very similar to the Book - Sichelflüglern ( Watsonalla cultraria ) and also have a yellow -brown color. The most obvious distinguishing feature are two twin black spots on the forewings. Sometimes these are also weaker in front on the hind wings. The forewings have two lighter transverse bands, the hind wings are the same as the front wings colored in the males, the females, they are slightly lighter in color. The moths of the second generation are much smaller and somewhat lighter in color than that of the first.

Similar Species

  • Book - Sichelflügler ( Watsonalla cultraria )

Occurrence

The moths come in North Africa, South and Central Europe dry to slightly moist mixed deciduous forests such as in oak-hornbeam forests, riparian forests, forests in river valleys and other mixed oak forests.

Way of life

On hot days, the males can fly high.

Flight times and caterpillars

Occur in two generations per year. The first flying mid-May to June and the second from late July to August. The caterpillars from the eggs of the first generation can be found in September, the second from June to July of the following year.

Food of the caterpillars

The caterpillars normally live on oak (Quercus ), especially oaks (Quercus robur) and sessile oak (Quercus petraea ), which grow in warm locations. But they were already found on beech, birch and alder.

Development

The females lay eggs on the leaf margins of bushy food plants. The resulting hatching caterpillars live mainly on low-hanging branches. They pupate in a spunbonded sheet and overwinter on the forest floor as a doll.

Swell

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