Trichius gallicus
| Trichius gallicus | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Trichius gallicus |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Trichius gallicus | ||||||||||||
| Dejean , 1821 |
Trichius gallicus , as smooth sliding Niger brush beetles known, is a beetle from the family of scarab beetles (Scarabaeidae). The species is assigned to the subfamily of the rose beetles (Cetoniinae). Trichius gallicus is one of three species of the genus Trichius that occur in Central Europe.
features
The beetles reach a length of 10–12 mm. The head and pronotum have brownish hairs. The elytra are usually yellow with three black bars that do not reach the suture of the wing. The wing pattern can, however, be very variable.
Males and females can usually be identified by the formation of the first phalanx . In the male, this is widened and rounded at the apical end. The center rail has in males as opposed to Trichius fasciatus no deep notch. Trichius gallicus differs from the species Trichius sexualis , which occurs in southeastern Europe, on the ventral side of the males. The species is only scaled white on the penultimate sternite , while T. sexualis is scaled whitish on the four penultimate sternites. The pygidium of the females of the three related species also shows differences.
Occurrence
In contrast to Trichius fasciatus, Trichius gallicus is considered to be a heat-loving species of beetle. Their distribution extends over western and central Europe and western southern Europe (including Sardinia) to northwestern Africa. The species is also represented in England. In Germany the species is represented in all federal states except Bavaria. It occurs mainly in the North German Plain . In contrast, the related species Trichius fasciatus occurs in the low mountain ranges . In East Germany, Trichius gallicus has only spread from Berlin since 1960. In Eastern Europe the species occurs in Bohemia and Moravia .
Way of life
The larvae of Trichius gallicus develop in white rotten hardwood. They need two years to become an adult beetle. The beetles mainly fly in June and July. They can be seen in floodplains, on damp forest edges, on heather and on ruderal areas. You will visit the flowers of various umbelliferae , but also other plants such as blackberries or tansy .
Taxonomy
For a long time the species was listed as Trichius zonatus Germar , 1831. It was not until 2012 that Frank-Thorsten Krell examined the nomenclature and the synonyms used in more detail, with the result that today Trichius gallicus is used as the leading species name.
Synonyms used in the literature are:
- Trichius rosaceus ( Voet , 1769)
- Trichius rosaceus Kraatz , 1891
- Trichius zonatus Germar , 1831
Web links
- Trichius zonatus / Glattschieniger brush beetle at www.naturspaziergang.de
- Brush beetle ( Trichius zonatus ) at naturspektrum.de
- Trichius gallicus at www.biolib.cz
Individual evidence
- ↑ a b c Arved Lompe: Beetles of Europe - genus Trichius . www.coleo-net.de. Accessed January 30, 2018.
- ↑ a b c d e f g Eckehard Rößner, Joachim Schulze: Distribution of the genus Trichius FABRICIUS, 1775 in East Germany (Col., Scarabaeidae, Trichiinae) (PDF, 1.6 MB) Entomological News and Reports, 43, 1999/1. Pp. 59-66. Accessed January 30, 2018.
- ↑ a b c Frank-Thorsten Krell: On nomenclature and synonymy of Trichius rosaceus , T. gallicus , and T. zonatus (Coleoptera: Scarabaeidae: Cetoniinae: Trichiini) (PDF, 257 KB) Zootaxa 3278: 61-68 (2012). Accessed January 30, 2018.
- ↑ a b Trichius zonatus in Fauna Europaea
- ↑ a b c Klaus Koch: Die Käfer Mitteleuropas - Ökologie - Volume 2 , Goecke & Evers Verlag, Krefeld, 1989, ISBN 3-87263-040-7 , p. 381