Syngrapha diasema
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Syngrapha diasema |
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| ( Boisduval , 1829) |
Syngrapha diasema is a butterfly ( moth ) fromthe owl family (Noctuidae).
features
butterfly
The wingspan of the moth is 34 to 40 millimeters. Ash-gray tints predominate on the upper forewings. Freshly hatched specimens have a light purple-gray shimmer. In the middle is a characteristic silver-white sign, for example in the form of the letter gamma from the Greek alphabet. A very dark, black-brown field stands out below the gamma symbol. The apex is slightly darkened. A wavy line is not or only indistinctly recognizable. The upper side of the hind wing is dirty yellow to yellow-brown or light brownish in color and bordered by a gray-black band. The thorax is furry and has a few tufts of hair, the proboscis is well developed.
Caterpillar
Adult caterpillars are light green in color. They show a dark green, white bordered back line, thin white interrupted side back lines and yellow and white side stripes.
Similar species
The larch gold owl ( Syngrapha ain ) of the same size shows strong yellow-colored upper sides of the hind wings and a distinct black, strongly jagged wavy line. Hochenwarth's gold owl ( Syngrapha hochenwarthi ), the bog gold owl ( Syngrapha microgamma ) and Syngrapha devergens are all smaller and also have bright yellow-colored upper sides of the hind wings. The inner-Asian specimens of Syngrapha diasema resemble the Nearctic Syngrapha orophila .
distribution and habitat
Syngrapha diasema occurs in Fennoscandinavia , as well as in subalpine locations and tundra-like areas of Russia , Central Asia and northern North America. In Europe, the species inhabits altitudes between 400 and 900 meters. However, it is missing in the Alps .
Way of life
The nocturnal moths of Syngrapha diasema form one generation per year, which flies in the summer months. They like to suckle on the flowers of fireweed ( Epilobium ), citrus herbs ( Silene ), clove root ( Geum ) and Jacob's ladders ( Polemonium ) and visit artificial light sources . The caterpillars prefer to feed on the leaves of various birch ( Betula ), blueberry ( Vaccinium ) and poplar species ( Populus ). They hibernate.
swell
Individual evidence
- ↑ a b c d e Barry Goater, Lázló Ronkay and Michael Fibiger: Catocalinae & Plusiinae Noctuidae Europaeae, Volume 10. , Sorø 2003 ISBN 87-89430-08-5 , pp. 240–242
literature
- Barry Goater, Lázló Ronkay and Michael Fibiger: Catocalinae & Plusiinae Noctuidae Europaeae, Volume 10. , Sorø 2003 ISBN 87-89430-08-5 , pp. 240–242
Web links
- Lepiforum e. V. - Taxonomy and photos
- discoverlife - Imago and caterpillar
- www.nic.funet.fi - dissemination
- Syngrapha diasema in Fauna Europaea. Retrieved November 12, 2015