Blueberry and silver owl

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Blueberry and silver owl
Syngrapha interrogationis.jpg

Blueberry-silver owl ( Syngrapha interrogationis )

Systematics
Order : Butterflies (Lepidoptera)
Superfamily : Noctuoidea
Family : Owl butterfly (Noctuidae)
Subfamily : Plusiinae
Genre : Syngrapha
Type : Blueberry and silver owl
Scientific name
Syngrapha interrogationis
( Linnaeus , 1758)

The blueberry silver owl ( Syngrapha interrogationis ), also known as the bilberry silver owl , is a butterfly ( moth ) from the family of the owl butterflies (Noctuidae).

features

The blueberry and silver owl is a medium-sized butterfly with a wingspan of 32 to 38 millimeters from the subfamily of gold owls (Plusiinae). The moths have ash-gray or black-gray forewings with silver-colored characters, which usually consist of a point and a rounded line. In rest position, d. H. with a roof-like folded wings, similar to the kind of slightly larger Silver Y ( Autographa gamma ) or larch gold owl ( Syngrapha ain ), both of which are however marked contrast. The larch gold owl also differs in its yellow lower wings. Due to strong variations in coloring and drawing, the following forms have been described of the blueberry and silver owl:

  • f.cinerea Warr., with cloudy ash-gray, less contrasting forewings
  • f.aureomaculata Vorbr., with gold instead of silver metal mark
  • f.flammifera Huene, with enlarged and merged silver spots
  • f. orbata Warr., without metal mark

The caterpillars are light green in color and have a dark green back line with light edges. The doll is blackish.

Similar species

Geographical distribution and habitat

The blueberry and silver owl occurs worldwide in northern areas, from Alaska via Canada , Europe , Siberia to Northeast Asia . In the Alps you can still find them at altitudes of 2,400 meters. The occurrence includes bog areas, raised bogs, forests with blueberry vegetation, forest edges and gardens.

Way of life

The moths fly day and night. The females lay the eggs on the forage plant, from which the caterpillars hatch in autumn and then feed on the leaves of various plants, such as:

They overwinter and pupate mostly in May of the following year in a whitish-gray web. The moths fly from June to August.

Danger

The species occurs in Germany in different frequencies - but mostly rarely - and is listed in the Red List of Endangered Species under Category V (i.e. on the warning list).

swell

Individual evidence

  1. ↑ a b c Manfred Koch, Wolfgang Heinicke: We determine butterflies. 3. Edition. Neumann, Radebeul 1991, ISBN 3-7402-0092-8 .
  2. ^ A b Walter Forster, Theodor A. Wohlfahrt: The butterflies of Central Europe. Volume 4: Owls. (Noctuidae). Franckh'sche Verlagshandlung, Stuttgart 1971, ISBN 3-440-03752-5 .

literature

Web links

Commons : Blueberry-Silver Owl ( Syngrapha interrogationis )  - Collection of images, videos and audio files