Arge gracilicornis
| Arge gracilicornis | ||||||||||||
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Arge gracilicornis |
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| ( Klug , 1814) |
Arge gracilicornis is a plant wasp from the brush horn sawfly family. It is common in Europe.
features
Both males and females can reach sizes of 8 to 12 mm, although males are often slightly smaller than females (12 to 15 mm). The body, including the abdomen, is colored metallic blue-black, and the trunk section also has no light-colored drawing elements. The legs are black or brownish. The wings are transparent (hyaline), but always more or less darkened brownish, the wing mark ( pterostigma ) is colored black. The short hairs are brownish in all parts, nowhere silvery white. For an exact determination and differentiation of related species, features of the veining of the wing are to be used: The cross vein 3rm in the front wing is curved in the species, so that the wing cell 2RS is significantly wider at the front than at the back.
All brush horn sawfly have a three-part antenna , the third antenna member being elongated and, in the female, also having a somewhat clubbed thickening.
Occurrence
The species is widespread in the Palearctic and lives in all of Europe and northern Asia, east to Japan, Korea and Kamchatka .
In Europe it is widespread and mostly common. She often visits cultivated land or settlements. The edges of forests, parks or dry meadows are also popular as a stay. In Germany, it is found preferentially on young, non-fruiting raspberry saplings in the forest, and more rarely also on blackberry species and dog roses.
biology
Arge gracilicornis can be observed as a diurnal insect from May to September. There are several overlapping generations. Umbelliferae (e.g. parsnips ) are preferred when visiting flowers . They mate in April. To lay their eggs, their females prick young shoots, sometimes also leaf veins on their Rubus host plants. The larvae of Arge gracilicornis often feed gregariously on those leaf margins. It is neither considered endangered nor is it placed under protection. Leaves of Rubus species (e.g. raspberry or blackberry ) are chosen as food by larvae ; Adults use pollen and nectar.
Web links
- http://www.tierportraet.ch/htm08a/arge_gracilicornis05.php
- https://www.flickr.com/photos/d-jp-balmer/5896962557/
Individual evidence
- ↑ a b c d http://www.naturspaziergang.de/Pflanzenwespen/Arge_gracilicornis.htm
- ^ RR Benson: Hymenoptera 2, Symphyta, Section a. Handbook for the identification of British insects vol. VI, part 2 (a). published by the Royal Entomological Society of London, 1951.
- ↑ a b Y.D. Burggraaf-van Nierop & C. van Achterberg (1990): De Cephidae en Argidae van Nederland (Hymenoptera). Zoological Bijdragen Leiden 39: 1-66.
- ↑ Jin-Kyung Choi, Su-Bin Lee, Meicai Wei, Jong-Wook Lee (2016): Three new species of the genus Arge (Hymenoptera: Symphyta: Argidae) from South Korea with key to species of the subfamily Arginae. Journal of Asia-Pacific Biodiversity 9: 183-193. doi : 10.1016 / j.japb.2016.02.001
- ↑ Taeger, A .; Altenhofer, E .; Blank, SM; Jansen, E .; Kraus, M .; Pschorn-Walcher, H .; Ritzau, C. Comments on the biology, distribution and endangerment of the plant wasps in Germany (Hymenoptera, Symphyta). In: Taeger, A. and Blank, SM 1998 (editor): Plant wasps in Germany (Hymenoptera, Symphyta). Annotated inventory: 49-135.