Striped pine dwarf ladybug

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Striped pine dwarf ladybug
Scymnus suturalis.jpg

Striped pine dwarf ladybug ( Scymnus suturalis )

Systematics
Family : Ladybird (Coccinellidae)
Subfamily : Coccinellinae
Tribe : Scymnini
Genre : Scymnus
Subgenus : Pullus
Type : Striped pine dwarf ladybug
Scientific name
Scymnus suturalis
Thunberg , 1795

The striped pine dwarf ladybug ( Scymnus suturalis ) is a beetle from the ladybird family , tribe Scymnini . The species is assigned to the subgenus Pullus within the genus Scymnus .

features

Dorsal view
Side view

The smallest ladybirds belong to the Scymnini tribe. The striped pine dwarf ladybug reaches a length of only 1.8–2.5 millimeters. Its body is elongated oval and coarsely hairy. It has a black base color. The elytra are light reddish brown in color and have a more or less distinct basal spot that extends backwards from the scutellum along the suture of the wing cover. In addition, the wing covers have a clearly recognizable shoulder bulge.

Occurrence

The species is native and widespread in the Palearctic . They occur in northern Europe as far as the Russian island of Novaya Zemlya and in the south as far as North Africa. At the beginning of the 20th century, Scymnus suturalis was first detected in eastern North America. In 1961, a German beetle population was introduced to Michigan to control the plant louse Adelges tsuga , a pest of the hemlock .

Way of life

The adult beetles can usually be seen between April and October. One finds the bugs at various conifers, especially pines ( Pinus ). They prefer young plants and trees at the edge of the forest or in clearings. The beetles feed on aphids of the Adelgidae family and on Chionaspis salicis , a representative of the cap scale insects .

Taxonomy

The following synonyms can be found in the literature :

  • Coccinella pusillus O.F. Müller , 1776
  • Scymnus (Pullus) pilosus Herbst , 1797
  • Coccinella discoideus Illiger , 1798
  • Byrrhus pini Marsham , 1802
  • Coccinella plagiatus Beck , 1817
  • Scymnus (Pullus) atriceps Stephens , 1832
  • Scymnus (Pullus) quercus Mulsant , 1850

Individual evidence

  1. ↑ a b c d Heinz Freude, Karl Wilhelm Harde (ed.), Gustav Adolf Lohse (ed.): Die Käfer Mitteleuropas. Volume 7: Clavicornia. Spektrum Akademischer Verlag, Munich 1967, ISBN 3-8274-0681-1 , pp. 243, 252.
  2. ↑ a b c K. Hurka: Beetles of the Czech and Slovak Republic. Kabourek, Zlin 2005, ISBN 80-86447-11-1 , p. 153.
  3. ↑ a b Arved Lompe: Beetle of Europe - Pullus . www.coleonet.de. Retrieved March 9, 2019.
  4. ↑ a b c d Species Scymnus suturalis . bugguide.net. Retrieved March 9, 2019.
  5. ↑ a b c Scymnus frontalis in Fauna Europaea. Retrieved March 9, 2019
  6. ↑ Klaus Koch: Die Käfer Mitteleuropas - Ökologie - Volume 2. Goecke & Evers Verlag, Krefeld 1989, ISBN 3-87263-040-7 , p. 240.

Web links

Commons : Striped Pine Pygmy Ladybug ( Scymnus suturalis )  - Collection of images, videos, and audio files