Pyrrhocoris marginatus
| Pyrrhocoris marginatus | ||||||||||
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| Scientific name | ||||||||||
| Pyrrhocoris marginatus | ||||||||||
| ( Kolenati , 1845) |
Pyrrhocoris marginatus is a species from the fire bug family. The German name "Mönchswanze", once proposed for the species, has not found any further acceptance.
features
The species reaches a body length of 5.6 to 7, rarely up to 9 millimeters. The body is monochrome dark brown to blackish in color, with the exception of a strikingly contrasting light yellow stripe on the calloused, thickened edge of the pronotum and the corium of the half-ceilings ; The tip and sides of the connexive (that is, the detached, somewhat upturned edge of the abdomen) can also be colored yellow. The rails on the legs are lighter brown, darkened at the base and tip, and the tips of the thighs are yellow. Like the common fire bug (Pyrrhocoris apterus), which is similar in physique but completely different in color, this species has animals with shortened wings (brachyptere) and those with fully developed wings (macroptere) in which the wings reach the tip of the abdomen. The wing length of the Brachypteran animals is variable, often the half-covers still cover about two thirds of the sixth abdominal strait. The antennae are almost the same length as one another, only the fourth (last) is slightly longer.
The species is very similar to the Pyrrhocoris niger , which is endemic on the island of Crete , from which it differs in its somewhat smaller size, more rounded body shape and the more lightened side edge. However, both species never occur together (sympatric), information from Pyrrhocoris niger from southern Russia turned out to be incorrectly determined.
distribution
Pyrrhocoris marginatus is a species of Southeast Europe (west to south France) and the bordering West and Central Asia. It occurs throughout Italy, with the exception of the islands of Sicily and Sardinia. Finds exist from Turkey, Iraq and Iran east to Siberia and western China, but they are completely absent in the Russian Far East. The range of the species does not overlap with that of the east widespread species P. fuscopunctatus , P. sibiricus and P. sinuaticollis . In Central Europe, it is limited to habitats with less heat, especially in the southeast. The northern limit of the distribution is given for the Moselle and Lahn valley and the Kyffhäuser mountains.
Ecology and way of life
The species lives on the ground and feeds, as far as is known, by sucking out seeds from various plant species. They are often found under Robinia ( Robinia pseudoacacia ), the seeds of which apparently belong to the preferred food spectrum, although this species was introduced into the range of the species only recently by humans. Otherwise no binding to a preferred food plant has been proven. In contrast to the common fire bug, it does not form large aggregations, but lives individually (solitary).
Taxonomy
The species was first described by Friedrich Kolenati , as Platygaster marginatus , in 1845.
Individual evidence
- ↑ Hans-Jürgen Hoffmann (2011): The names of the bugs - Latin and German, as well as their emphasis. Heteropteron 34: 17-33.
- ^ A b Eduard Wagner: Bugs or Heteroptera, Volume I. Pentatomorpha. In Friedrich Dahl (founder): The animal world of Germany and the adjacent parts of the sea, 54th part. Gustav Fischer Verlag, Jena 1966. on page 116.
- ↑ Ernst Heiss (1983): Heteroptera from Crete I (Insecta: Heteroptera). Reports of the natural science-medical association Innsbruck 70: 135-144.
- ↑ Paride Dioli & Martino Salvetti (2009): Catalogo topografico commentato degli Eterotteri (Insecta, Heteroptera) della provincia di Sondrio (Lombardia, Italia settentrionale) e aree limitrofe. 1. Alydidae, Stenocephalidae, Pyrrhocoridae. il naturalista valtellinese - Atti del Museo civico di Storia naturale di Morbegno 20: 31-49.
- ↑ Imtiaz Ahmad & Rokhsana Perveen (1987): A revision of the Pyrrhocoris species (Hemiptera: Pyrrhocoridae) from east of Palaearctic Region (Turkey, Iran, Iraq and Pakistan) with redicription of P.marginatus Kolenti. Türkiye Entomoloji Derneği 11 (2): 67-72.
- ^ Klaus Voigt (2004): The genus Pyrrhocoris in the Palearctic. Heteropteron 19: 9-11.
- ^ PA Lehr: Keys to the insects of the far east of the USSR in six volumes. Volume II: Homoptera and Heteroptera. (Opredelitel nasekomykh Dal'nego Vostoka SSSR v shesti tomakh. Vol. 2. Ravnokrylye i poluzhestkokrylye) Leningrad, Nauka 1988. translated by IM Kerzhner. US Department of Agriculture, 2001.
- ^ DA Gapon (2007): Structure, Function, and Morphological Conformity of the Male and Female Genitalia in the True Bug Genus Pyrrhocoris Fall. (Heteroptera, Pyrrhocoridae). Entomological Review 87 (9): 1099-1108.