Trigonotylus caelestialium
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Trigonotylus caelestialium |
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| Trigonotylus caelestialium | ||||||||||||
| ( Kirkaldy , 1902) |
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Trigonotylus caelestialium is a species of bug from the family of soft bugs (Miridae).
features
The bugs are 4.5 to 7.3 millimeters long. The species of the genus Trigonotylus have an elongated body with a longitudinal furrow between the compound eyes and a smooth, unpunctured pronotum . The first link of their antennae has short, spiky hairs and is no longer than the head. In Trigonotylus caelestialium and Trigonotylus ruficornis the first antennae is mostly red and has pale longitudinal stripes. These are much clearer and more contrasted in the Trigonotylus caelestialium .
Occurrence and habitat
The species is distributed holarctic . It has only been clearly differentiated from Trigonotylus ruficornis for a few decades , so that older findings cannot be clearly assigned. The species is widespread throughout Europe and occurs east to Siberia and across Central Asia to China, Japan and Korea as well as in North America. In Germany and Austria, the species is likely to occur everywhere and is common. It is much more common than Trigonotylus ruficornis . Various open to partially shaded grass areas are populated, from dry grasslands, semi-arid grasslands and dunes to moist and wet moors. In xerothermal places it occasionally occurs together with Trigonotylus ruficornis .
Way of life
Trigonotylus caelestialium lives on various sweet grasses , such as common red fescue ( Festuca rubra ), silver grass ( Corynephorus canescens ) or German ryegrass ( Lolium perenne ), but also occurs on many other types of sweet grass . Second generation bedbugs have also been observed on Kali saltwort ( Kali turgida ) in the fall . The laying of eggs was observed on Lolch ( Lolium ) by sticking into the stalks. In North America, the species is considered a pest on cereals. Every year in Germany there are two generations. The overwintering takes place as an egg. The imagines the first generation occur from late May to early June, the nymphs of the second generation from late July to August. They are adult from mid-August and can be observed until September / October. Occasionally, nymphs can still appear in September.
supporting documents
Individual evidence
- ^ A b c Ekkehard Wachmann , Albert Melber, Jürgen Deckert: Bugs. Volume 2: Cimicomorpha: Microphysidae (lichen bugs), Miridae (soft bugs) (= The animal world of Germany and the adjacent parts of the sea according to their characteristics and their way of life . 75th part). Goecke & Evers, Keltern 2006, ISBN 3-931374-57-2 , p. 148 f .
- ↑ Trigonotylus caelestialium. British Bugs, accessed July 4, 2015 .
literature
- Ekkehard Wachmann , Albert Melber, Jürgen Deckert: Bugs. Volume 2: Cimicomorpha: Microphysidae (lichen bugs), Miridae (soft bugs) (= The animal world of Germany and the adjacent parts of the sea according to their characteristics and their way of life . 75th part). Goecke & Evers, Keltern 2006, ISBN 3-931374-57-2 .
Web links
- Trigonotylus caelestialium in Fauna Europaea. Retrieved July 4, 2015
- www.britishbugs.org.uk - photos, description