Dolerus gonager

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Dolerus gonager
2019 04 08 Dolerus gonager.jpg

Dolerus gonager

Systematics
Subordination : Plant Wasps (Symphyta)
Family : Sawfly (Tenthredinidae)
Subfamily : Selandriinae
Genre : Dolerus
Subgenus : Poodolerus
Type : Dolerus gonager
Scientific name
Dolerus gonager
( Fabricius , 1781)
Dorsal view
Specimen with spread wings

Dolerus gonager , also known as red-legged cereal sawfly ,is a plant wasp from the family of sawfly (Tenthredinidae).

features

The plant wasps have a body length of about 10 millimeters. They are almost completely black in color. The femurs are colored reddish yellow than the basal end. The basal end of the tibia is also colored red-yellow. The wings are provided with black veins . On the front edge of the forewings there is a black mark on the wing , characteristic of the genus Dolerus . The larvae are yellow-green in color.

Similar species

In addition to Dolerus gonager, there are four other Dolerus species in Europe ( gessneri , liogaster , puncticolis and albertii ) that have a similar coloration. A distinguishing feature is the shape and hairiness of the sawing device at the end of the abdomen .

distribution

The species is distributed in the western Palearctic . It is widespread in Europe and occurs in the south of Great Britain . In the north, the occurrence extends to Norway and Finland.

Way of life

The plant wasps appear in April. They are particularly common in May and June. You can find them in meadows where they visit different flowers. The host and food plants of the larvae of Dolerus gonager include various sweet grasses ( Poaceae ), including panicle grasses ( Poa ), ostrich grasses ( Agrostis ) and fescue ( Festuca ). They feed on the leaves of their host plants. The infestation of wheat ( Triticum ) by the plant wasp larvae can lead to yield losses. Dolerus gonager is considered to be a pest of lesser economic importance.

Individual evidence

  1. ↑ a b Dolerus gonager . www.commanster.eu. Retrieved April 26, 2019.
  2. ↑ a b c d Dolerus gonager . www.naturespot.org.uk. Retrieved April 26, 2019.
  3. ↑ a b c Vicidomini Salvatore, Raimo Francesco, Vatore Roberto: Relazione tra farro e Oulema melanopus (Coleop.), Dolerus gonager (Hymen.), Haplothrips tritici (Thisanop.) In provincia di Benevento, Contributo sulgetto agro-ecologia delle colture del progetto Co.Al.Ta. . Progetto Co.Al.Ta. 1. pp. 665-669. November 19, 2007. Retrieved April 26, 2019.
  4. ↑ a b Dolerus gonager . www.entomologiitaliani.net. September 4, 2015. Accessed April 26, 2019.
  5. ↑ Clé de Berland . www.insecte.org. April 24, 2018. Retrieved April 26, 2019.
  6. ↑ a b Dolerus (Poodolerus) gonager in Fauna Europaea. Retrieved April 26, 2019
  7. ^ Biological Records Center (BRC): Database of Insects and their Food Plants

Web links

Commons : Dolerus gonager  - collection of images, videos and audio files