Cabinet beetle
| Cabinet beetle | ||||||||||||
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Cabinet beetle ( Anthrenus museorum ), ♂ |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Anthrenus museorum | ||||||||||||
| ( Linnaeus , 1761) |
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| Antennae of the male | Antennae of the female |
The cabinet beetle ( Anthrenus museorum ), also known as the museum beetle , is a beetle from the family of the bacon beetles (Dermestidae). The genus Anthrenus is divided into six subgenus worldwide, two of which occur in Europe. The subgenus Florilinus , to which the cabinet beetle belongs, is represented in Europe with twenty-two species. It is characterized by eight-part antennae with a two-part club. In the male of the cabinet beetle, the end member of this club is considerably larger than the base member of the club, which is only slightly larger than the members of the antennae flagella. In the female, the base member of the club is also much larger than the members of the flagellum, but also significantly smaller than the end member of the club. The entire leg of the female is smaller than the terminal link of the male's leg.
The species name "museorum" ( Latin ) means the museum . He alludes to the fact that it can do a lot of damage to museum insect collections. Linné already points to this in his first description of the species ( habitat in museis, quae destruit, teste D.De Geer Latin for occurs in museums, where it causes destruction, as De Geer testifies ). The genus name Anthrenus from ancient Gr. ανθρήνη anthrēne as the name for a wild bee and the name of the subgenus Florilinus (Latin flōs, flōris flower) indicates that the species is often found on flowers. The name Cabinet Beetle also refers to the cabinets in which, among other things, showpieces of particularly impressive insects were kept.
Characteristics of the beetle
The 2.2 to 3.6 millimeter large beetle has the typical, strongly rounded shape of the genus Anthrenus. The sensors can in sensor pits on the front neck plate side edge , and the legs in the recesses ( "fillet") can be placed on the body bottom, the head can be bent on the underside of the body and are to hidden to the upper jaw (mandibles) from the anterior chest. So these beetles show a kind of preliminary stage of ballistic ability.
The beetle is black, the rails , tarsi and antennae are yellow-red, in the male the last antenna link is, in the female the whole leg is blackish. The drawing is caused by black, white and brownish-yellow scales, which are predominantly short and rounded on the wing covers and taper off triangular. The drawing varies greatly and can be falsified by the fact that the scales are rubbed off and the beetle appears black in such places. The pronotum is black in the central area (on the disc), its back corners and the center of the base are predominantly white. Three thin, often incomplete, light-colored transverse bands run across the elytra, but groups of white or yellow-brown scales can be scattered everywhere.
In addition to the two compound eyes , the beetles have a point eye ( ocellus ) in the middle of the forehead .
Similar species
- Cabbage flower beetle ( Anthrenus verbasci )
- Anthrenus fuscus
Occurrence
The animals are found in the entire Palearctic except in the extreme north. They were introduced into North America . As a follower of culture , they live close to humans everywhere; in the wild they can be found on flowers from the lowlands to the mountains.
Way of life
The beetles are often found together with the carpet beetle ( Anthrenus scrophulariae ). They can be found on flowers where they eat pollen.
The larvae develop in the wild under bark in forests or on forest edges, or synanthropically in apartments, houses and camps. They feed mainly on dead insects and other sources of chitin and keratin and can therefore also be found in bird nests. They are also known as pests in insect collections.
literature
- Jiří Zahradník : Beetles of Central and Northwestern Europe (translated by Martin Rosch, edited by Irmgard Jung and Dieter Jung. Illustrations by Jarmila Hoberlandtová and Ivan Zpěvák). Parey, Berlin 1985, ISBN 3-490-27118-1 .
- Heinz Joy, Karl Wilhelm Harde, Gustav Adolf Lohse: The beetles of Central Europe . tape 6 : Diversicornia . Spectrum, Heidelberg 1979, ISBN 3-87263-027-X .
- Klaus Koch : The Beetles of Central Europe Ecology . 1st edition. tape 2 . Goecke & Evers, Krefeld 1989, ISBN 3-87263-040-7 .
Individual evidence
- ↑ Anthrenus at BioLib
- ↑ Anthrenus in Fauna Europaea. Retrieved February 12, 2013
- ↑ Florilinus (subgenus) in Fauna Europaea. Retrieved February 12, 2013
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names (species)
- ^ C. Linnaeus: Fauna Svecica sistens animalia Sveciæ Regni: mammalia, aves, amphibia, pisces, insecta, vermes. ... Stockholm 1761 Original description of the species at GDZ
- ↑ Sigmund Schenkling: Explanation of the scientific beetle names (genus)
