Dicyphus annulatus

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Dicyphus annulatus
Systematics
Subordination : Bed bugs (heteroptera)
Family : Soft bugs (Miridae)
Subfamily : Bryocorinae
Tribe : Dicyphini
Genre : Dicyphus
Type : Dicyphus annulatus
Scientific name
Dicyphus annulatus
( Wolff , 1804)

Dicyphus annulatus is a species of bug from the family of soft bugs (Miridae).

features

The bugs are 2.8 to 3.6 millimeters long. Species of the genus Dicyphus are usually difficult to identify based on external characteristics, but the color can still be helpful. The spurs on the legs of Dicyphus annulatus arise from black points. The antennae are completely black and have white rings on the first and second link. The black head is characteristically spotted with white. The type can be determined from the length of the third antennae, which is shorter than the head at the level of the compound eyes, and from the spurs on the splints ( tibia ), which are approximately as long as the splints are wide. Dicyphus globulifer is very similar. The adult bugs are always fully winged (macropter). The nymphs are greenish in color.

Occurrence and habitat

The species is mainly found in the Mediterranean and North Africa and occurs east across Asia Minor to the Caucasus. In the north, however, the distribution area also extends to Western and Central Europe. It is also found in the British Isles. In Germany it is particularly widespread in the south and occurs north to the northern edge of the low mountain range. It is not uncommon and can also be frequent locally. In the more northerly lowlands it is only found sporadically and rarely. Only a few older records are known from Austria.

The species colonizes dry, warm, open habitats on sandy and limestone soils, where their host plants grow.

Way of life

The bedbugs live on the rest of the world ( Ononis ), in particular the thorny restoration ( Ononis spinosa ) and the creeping restoration ( Ononis repens ). They presumably feed on zoophytophagus. The overwintering takes place as an imago in the dry litter below the host plants from dead leaves of these. Only after wintering, in early summer, do the females lay their eggs. The nymphs can be observed from June to August at the same time as the adult bugs of the old generation, the adults of the new generation appear from August.

supporting documents

Individual evidence

  1. ↑ a b c d e f 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. 26 .
  2. ↑ a b Dicyphus annulatus. British Bugs, accessed January 3, 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