Urbahn's white willow spanner

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Urbahn's white willow spanner
Urbahn's white willow spanner (Cabera leptographa) ♂

Urbahn's white willow spanner ( Cabera leptographa ) ♂

Systematics
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Ennominae
Tribe : Caberini
Genre : Cabera
Type : Urbahn's white willow spanner
Scientific name
Cabera leptographa
( Wehrli , 1936)

Urbahns White willow tensioner ( Cabera leptographa ) is a butterfly ( moth ) from the family of the tensioner (Geometridae). The German name honors the entomologists Ernst and Herta Urbahn , who first detected the species in Germany.

features

butterfly

The moths reach a wingspan of 20 to 25 millimeters. They have glossy white colored wing tops. On the front wings three, on the hind wings two dark gray transverse lines stand out. The middle and inner transverse lines of the forewings are usually only weakly developed. Some dark longitudinal scales are distributed over the wing surface, especially in the costal field of the forewings. The antennae of the males are combed on both sides. The forehead is darkened yellow-brown in the upper area.

Egg, caterpillar, pupa

The egg is shiny, bright, brass-colored, approx. 0.5 to 0.7 millimeters long, has an oval shape, is strongly flattened on the underside and has a weak network sculpture that is somewhat more pronounced on the micropyle .

Adult caterpillars are green in color and have light segment incisions. The dark back line is edged in a wavy manner. The secondary ridge lines are yellow-white in color, the lateral lines are whitish and mostly dissolved in spots.

The pupae are glossy dark brown in color and show olive-green wing sheaths. The Kremaster has two large and six small hook bristles.

Similar species

  • The white- forehead whitewater ( Cabera pusaria ) differs through the more clearly defined dark transverse lines on the upper side of the wing and the always pure white forehead.
  • The brown-forehead whitewater ( Cabera exanthemata ) differs in the slightly yellow-gray over-dusting of the upper side of the wing and the brownish forehead.

The moths of the two aforementioned species are also slightly larger than Cabera leptographa . If there are still doubts during the determination, the species can be clearly assigned using a genital morphological examination.

White- fronted whitewater ( Cabera pusaria ) ♂
Brown-forehead whitewater ( Cabera exanthemata ) ♂

distribution and habitat

The species, which occurs mainly in Central Asia, was first recorded in Germany in 1950 near Zehdenick . The species is considered a neozoon and was later found on the Zitzmannsdorfer Wiesen in Seewinkel and the Nanni-Au near Marchegg in Lower Austria . It prefers to live on bushy meadows in riverside areas.

Way of life

The main flight time of the moths is from mid-June to early August. You visit artificial light sources . The caterpillars develop mainly in July and August. They feed on the leaves of willow species ( Salix ), especially the creeping willow ( Salix repens ). The species overwinters as a pupa.

swell

Individual evidence

  1. ↑ Ernst Urbahn: The Asian Geometride Cabera leptographa Wehrli found in the Mark Brandenburg. , Zeitschrift für Lepidopterologie, II, Heft 1, 1952, pp. 25-35
  2. ↑ a b c Ernst and Herta Urbahn: Cabera leptographa Wehrli 1939 , Entomologische Nachrichten, Dresden, Volume 22, No. 3, 1978, pp. 33-44
  3. ↑ Walter Forster, Theodor A. Wohlfahrt: The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 , p. 205.
  4. ↑ Friedrich Kasy: The "Asian" Geometride Cabera leptographa Wehrli also on Lake Neusiedl! (Lep., Geom.) , Journal of the Vienna Entomological Society, 48th Jhg., No. 3, 1963, pp. 41–43
  5. ↑ a b Friedrich Kasy: Lepidopterological-faunistic remarkable new finds from Lower Austria, VI. , Journal of the Working Group of Austrian Entomologists, 22nd year. 4, 1970, pp. 145/146

literature

  • Günter Ebert (Eds.), Daniel Bartsch, Armin Becher & Stefan Hafner: The Butterflies of Baden-Württemberg, Volume 9, Nachtfalter VII. Ulmer, Stuttgart 2003, ISBN 3-8001-3279-6 , p. 517
  • Walter Forster , Theodor A. Wohlfahrt : The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 , p. 205.
  • Manfred Koch , Wolfgang Heinicke, Bernd Müller: We determine butterflies. Volume 4: Spanner. 2nd, improved and enlarged edition. Neumann, Leipzig / Radebeul 1976, DNB 780451570 , p. 197.

Web links

Commons : Urbahns Weißer Weidenspanner  - Collection of images, videos and audio files