Physatocheila dumetorum

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Physatocheila dumetorum
Systematics
Subordination : Bed bugs (heteroptera)
Family : Net bugs (Tingidae)
Subfamily : Tinginae
Genre : Physatocheila
Type : Physatocheila dumetorum
Scientific name
Physatocheila dumetorum
( Herrich-Schäffer , 1838)

Physatocheila dumetorum is a bug from the family of net bugs (Tingidae). In the west of its range it cannot bedistinguishedfrom Psysatocheila confinis either in appearance or in way of life.

features

The bugs are 2.7 to 3.0 millimeters long. The representatives of the genus Physatocheila have downwardly curved margins on the pronotum and all three keels on the pronotum reach to the head. Physatocheila dumetorum is slightly smaller than Physatocheila harwoodi and Physatocheila smreczynskii and their hemielytres are only slightly widened at the level of the middle. The dark colored marginal area of ​​the hemielytres has two rather than three rows of cells. The tarsi and the tips of the antennae are dark.

distribution and habitat

The species is widespread in western and central Europe as well as the European Mediterranean countries and is absent in Scandinavia. To the east, the distribution area extends north of the Black Sea. Psysatocheila confinis , however, occurs in the east mainly south of the Black Sea and in Asia Minor as far as the Caucasus. In Great Britain, Physatocheila dumetorum is common in large parts of England and Wales. Warm living spaces are settled.

Way of life

The animals live on woody rose plants (Rosaceae) such as single hawthorn ( Crataegus monogyna ) and blackthorn ( Prunus spinosa ). In Germany they are rarely found on fruit trees. The animals are mainly found on older plants with lichen growth and are sometimes found in large numbers on these plants. It is unclear whether the two similar species can be separated on the basis of the two food plants mentioned above, but it is suspected. The overwintering takes place as an imago on the trunks and branches of the plants, but you can also find them on other trees under bark or between moss and lichen. The bugs become active again in April and May, and eggs are laid on the leaves of the plants in May. The nymphs appear from June, the adults of the new generation from July or August.

supporting documents

Individual evidence

  1. ↑ a b c d e Wachmann: Wanzen , Vol. 1, p. 141
  2. ↑ a b Physatocheila dumetorum. British Bugs, accessed June 22, 2014 .

literature

  • Ekkehard Wachmann , Albert Melber, Jürgen Deckert: Bugs. Volume 1: Cimicomorpha: Dipsocoromorpha, Nepomorpha, Gerromorpha, Leptopodomorpha, Cimicomorpha (part 1) (=  The animal world of Germany and the adjacent sea parts according to their characteristics and according to their way of life . 77th part). Goecke & Evers, Keltern 2006, ISBN 3-931374-49-1 .

Web links