Two-point meadow bug
| Two-point meadow bug | ||||||||||||
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Two-point meadow bug |
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| Systematics | ||||||||||||
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| Closterotomus norwegicus | ||||||||||||
| Gmelin , 1790 |
The two-point meadow bug ( Closterotomus norwegicus ) belongs to the family of soft bugs , which belongs to the order of the Schnabelkerfen.
features
The two-point meadow bug grows 6–9 mm in size. Its name has two distinct black spots on the pronotum owe. However, a determination based on this characteristic alone is not possible because these points also occur in some related species. The mostly green to yellow-green rather narrow bug has yellowish to greenish veins on the smoky-tinted wing membrane. The male in particular often has an indistinct brownish ribbon over the wings. But there are also animals with a uniform pale green color and those with gray wings. The length of the thorns on the rails ( tibia ) (in this species they are shorter than the width of the tibia) and the relative length of the antenna members (in this species the second segment is about the same length as this) are important for distinguishing between similar species third and fourth taken together).
The nymphs are predominantly green to yellowish green with black hair.
Habitat and nutrition
The bug lives in meadows and other open (unforested) habitats. It is the most common type of bug in grain fields in many regions. As food and oviposition plant it preferably Compositae (Asteraceae), where the female eggs with its ovipositor ( Ovipositor sinks) in the tissue of the stem. However, it is reported by a large number of different food crops, including woody plants and grasses. It is also often indicated by nettles. The species likes to suckle on flowers and fruit plants.
Occurrence
The distribution area of the two-point meadow bug includes all of Europe. The species is also found in North Africa in the Middle East, West and Central Asia. It is common everywhere in Europe. It was introduced by humans to North America, Australia and New Zealand.
Economic importance
The species is considered an agricultural pest. Damage is known from cereals, potatoes (potato bug) and beets. The species has greater economic importance than in Europe in other areas into which it was unintentionally introduced by humans (neozoon). In California, it is a feared pest on pistachios .
Synonyms
In most of the older works, the species is included under the synonym Calocoris norvegicus (also: norwegicus ). Hoffmann suggests "Gemeine Schmuckwanze" as an alternative German name.
swell
- ↑ Closterotomus norwegicus in British Bugs [1]
- ^ DV Alford: Pests of Fruit Crops: A Color Handbook. Academic Press, 2007, ISBN 978-0123736765 , pp. 38-39.
- ↑ Corinna Eggenreich (2012): Diversity of bedbugs in ecological compensation areas and wheat fields. Diss., University of Natural Resources and Life Sciences, Vienna.
- ^ E. Wachmann, A. Melber, J. Deckert (2004): Die Tierwelt Deutschlands. Vol. 75.Bugs. Volume 2 Cimicomorpha. Goecke & Evers publishing house.
- ↑ R. Abraham (1937): Observations on the oviposition of some capsids. Work on physiological and applied entomology from Berlin-Dahlem, Volume 4, No. 4: 321-324.
- ↑ Lexicon of beet pests [2]
- ↑ M. Purcell & SC Welter (1991): Effect of Calocoris norvegicus (Hemiptera: Miridae) on Pistachio Yields. In: Journal of Economic Entomology Volume 84, Number 1: 114–119. ( ( Page no longer available , search in web archives: Abstract Online ))
- ↑ Hans-Jürgen Hoffmann (2011): The names of the bugs - Latin and German, as well as their emphasis. In: Heteropteron 34: 17-33.
