Ash serrated edge tensioner

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Ash serrated edge tensioner
Ash-serrated spanner (Ennomos fuscantaria), male

Ash- serrated spanner ( Ennomos fuscantaria ), male

Systematics
Class : Insects (Insecta)
Order : Butterflies (Lepidoptera)
Family : Spanner (Geometridae)
Subfamily : Ennominae
Genre : Ennomos
Type : Ash serrated edge tensioner
Scientific name
Ennomos fuscantaria
( Haworth , 1809)
Caterpillar

The Eschen- Zackenrandspanner ( Ennomos fuscantaria ), sometimes also referred to as Ash Parkland-Zackenrandspanner , is a butterfly ( moth ) from the family of the Spanner (Geometridae). The specific epithet is derived from the Latin word fuscare with the meaning "tan" and refers to the partly brownish color of the moths.

features

butterfly

The moths reach a wingspan of 33 to 38 millimeters for males and 33 to 42 millimeters for females. The upper sides of the wings are predominantly colored ocher yellow to yellow orange. The middle field of the forewings is bordered by two dark transverse lines, which approach each other slightly on the inner edge . The region between the outer transverse line and the edge is darkened to a greater or lesser extent from hazel brown to purple brown. The wing edges are jagged irregularly. The antennae of the males are strong double-comb-toothed, those of the females are very short double-serrated. A proboscis is missing.

Pre-imaginal stages

The egg is box-shaped, square and colored green. The edge is white, the microphyl rosette 7 to 8 leaved.

Adult caterpillars are very slender and essentially green in color. Brown, wart-like bumps or tips stand out on some segments, but they can also be missing. Sometimes an interrupted red-brown topline can be seen.

The pupae are greenish to yellowish in color. There are several black hook bristles on the cremaster .

Similar species

The similarly colored jagged edge spanner species oak jagged edge spanner ( Ennomos quercinaria ), birch jagged edge spanner ( Ennomos erosaria ) and alder jagged edge spanner ( Ennomos alniaria ) all lack the darkened brownish area between the outer transverse line and the edge on the upper side of the forewing .

distribution and habitat

The ash-toothed edge tensioner is widespread in Europe up to the middle of Russia . The subspecies Ennomos fuscantaria algeriensis lives in North Africa . The main habitat are floodplain and deciduous forests. The moths have also been detected in the city center of large cities. There they occur in gardens and city parks, in cemeteries and on avenues. In the Northern Alps , the species rises to around 1000 meters, in the Southern Alps up to around 1500 meters.

Way of life

The moths are mostly nocturnal and fly in one generation between July and October. They appear at night in artificial light sources . In their rest position they usually bend their wings at an angle and the antennae are placed parallel to the rear on the thorax . The eggs are laid in long rows on branches and overwinter. The caterpillars live between June and August of the following year and feed primarily on the leaves of the common ash ( Fraxinus excelsior ) or common privet ( Ligustrum vulgare ). Pupation takes place between leaves.

Danger

The ash-pronged edge tensioner is widespread in Germany, occurs in large numbers in certain areas and is classified as “not endangered”.

Individual evidence

  1. ^ Arnold Spuler: The butterflies of Europe , Volume 2, E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, 1910, p. 91
  2. ↑ a b Peder Skou & Pasi Sihvonen. In: Axel Hausmann (Ed.): The Geometrid Moths of Europe, Volume 5: Subfamily Ennominae I , Brill, Leiden, 2015, ISBN 978-90-04-25220-2 , pp. 272-275
  3. ^ A b Walter Forster , Theodor A. Wohlfahrt : The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 , S 209/210
  4. ↑ Markku Savela: distribution. In: Lepidoptera and some other life forms. Accessed November 4, 2019 .
  5. ^ Karl Cleve: The butterflies of West Berlin , Berliner Naturschutzblätter, Volksbund Naturschutz e. V., Volume 22, No. 63, 1978, p. 367
  6. ^ Günter Ebert (Ed.): The butterflies of Baden-Württemberg. 1st edition. Volume 9. Moths VII. Geometridae 2nd part. 1 Ulmer, Stuttgart (Hohenheim), 2003, ISBN 3-8001-3279-6 , pp. 386-388
  7. ↑ Manfred Koch: We identify butterflies. Volume 3: Owls. 2nd, expanded edition. , Neumann Verlag, Leipzig / Radebeul, 1972, pp. 202/203

literature

  • Peder Skou & Pasi Sihvonen. In: Axel Hausmann (Ed.): The Geometrid Moths of Europe, Volume 5: Subfamily Ennominae I , Brill, Leiden, 2015, ISBN 978-90-04-25220-2
  • Günter Ebert (Ed.): The butterflies of Baden-Württemberg. 1st edition. Volume 9. Moths VII. Geometridae 2nd part. 1 Ulmer, Stuttgart (Hohenheim), 2003, ISBN 3-8001-3279-6
  • Walter Forster , Theodor A. Wohlfahrt : The butterflies of Central Europe. Volume 5: Spanner. (Geometridae). Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04951-5 .

Web links

Commons : Ash Pointed Edge Spanner  - Collection of Images, Videos, and Audio Files