Rübseatpfeifer

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Rübseatpfeifer
Rübsaatpfeifer (Evergestis extimalis), specimen with very distinct transverse lines

Rübsaatpfeifer ( Evergestis extimalis ), specimen with very distinct transverse lines

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Crambidae
Subfamily : Evergestinae
Genre : Evergestis
Type : Rübseatpfeifer
Scientific name
Evergestis extimalis
( Scopoli , 1763)
Tense butterfly
Caterpillar
Caterpillar, dorsal view

The evergestis extimalis ( evergestis extimalis ), also Rübsaatzünsler called, is a butterfly from the family of Crambidae . The species is widespread across Europe.

features

The moths reach a wingspan of 22 to 28 millimeters. The forewings are light yellow, the outer part of the fringe area is dark brown, the fringes are gray-brown. A broad, very fuzzy, brown apical line extends from the apex. Two brown, jagged to wavy transverse lines run over the wings, which are often broken up into a series of fine vein points. In the basal field there are sometimes two brown, unequal-sized spots. Between the inner and outer transverse line there is usually a kidney defect with a dark border. The hind wings are whitish with an indistinct, dark brown border and gray-brown fringes.

The yellow-purple caterpillar has a black head and black warts on the back on both sides of the broad and dark yellow or orange-colored topline. The sides are purple, in the lower side area the caterpillar is light yellow. The doll is red-brown.

Way of life

Evergestis extimalis forms two generations per year in southern Europe, which fly from May to October. In Northern Europe, only one generation is formed that flies from June to August. The oligophageous caterpillars live individually or in groups in loose webs of spun together shoots of various cruciferous vegetables . They eat the seeds of rocket ( Sisymbrium ), cabbage ( Brassica ), gray cress ( Berteroa incana ), radish ( Raphanus ), turritis , gray cress ( Berteroa incana ), narrow-leaved double seeds ( Diplotaxis tenuifolia ), Iberis pinnata , bitter candytuft ( Iberis amara ) , Garden mustard ( Eruca sativa ), bare-stemmed farm mustard ( Teesdalia nudicaulis ), water-bump cress ( Rorippa amphibia ), and field herb ( Thlaspi arvense ). The caterpillars overwinter and pupate only in or on the ground in the next spring, less often in pods .

Occurrence

The species is widespread in Europe with the exception of northern Scandinavia and northern Russia. It occurs over Russia, Asia Minor and Central Asia over southern Siberia to Japan. It occurs relatively frequently in open landscapes and agricultural areas.

swell

literature

  • Karl Eckstein: The butterflies of Germany 5th volume The small butterflies of Germany . 222 p., KG Lutz Verlag, Stuttgart 1933
  • Barry Goater, Matthias Nuss & Wolfgang Speidel: Pyraloidea I (Crambidae: Acentropinae, Evergestinae, Heliothelinae, Schoenobiinae, Scopariinae) . - In: P. Huemer & O. Karsholt (eds.): Microlepidoptera of Europe 4: 1-304, Apollo Books, Stenstrup (2005) ISBN 87-88757-33-1
  • Frantisek Slamka: The Common Moth (Pyraloidea) of Central Europe: Determination - Distribution - Flight area - Way of life of the caterpillars . 2nd partially revised edition 112 pp., Bratislava (1997) ISBN 80-967540-2-5

Web links

Commons : Rübsaatzpfeifer ( Evergestis extimalis )  - Collection of images, videos and audio files