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Anthrenus

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This article is about the entire genus. For the type-subgenus, see Anthrenus (subgenus).

Anthrenus
Young imago of Anthrenus verbasci
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Dermestidae
Tribe: Anthrenini
Genus: Anthrenus
Geoffroy, 1762[1]
Subgenera

Anthrenus is a genus of beetles in the Dermestidae family, skin beetles. One of several genera of carpet beetles, Anthrenus was historically placed in a subfamily Anthreninae, though presently included in the Megatominae. The genus Neoanthrenus is closely related.

Anthrenus carpet beetles are small beetles a few (1.8-4mm) millimeters long with a rounded shape. Their antennae bear small clubs at the end, which are larger in the males than in females. Many have a delicate pattern, with a dark body covered in colorful scales of various brown, tan, red, whitish and grey hues. These scales rub off easily, and old individuals are often partially devoid of them, showing the shining black elytra. A considerable number of subspecies and varieties have been named, but it is questionable whether these are all valid or simply refer to such age-related differences. The massive number of species has been divided into several subgenera, but these are not too firmly established. The small subgenus Helocerus for example is sometimes entirely included in Florilinus. Also, new species are being described every now and then.[verification needed]

These beetles range essentially all over the world; they have even colonized some remote oceanic islands. Most species are harmless pollen-eaters, with the long-haired larvae feeding on a wide range of dead animal or plant matter. This makes them important decomposers, which clean up decaying organisms. Some, however, most notoriously, the museum beetle (A. museorum), are significant pests, infesting stored goods and especially biological specimens in museum collections. These species have caused considerable damage to biology by destroying valuable type specimens. Their larvae may cause considerable damage to wool, fur, feathers, and natural history collections.[2] Due to their larvae feeding on natural fibers they can be found laying eggs in carpets, hence the name carpet beetles.

Primarily this genus breeds in the spring and the summer months living in temperate regions. They are found worldwide due to distribution and are presumed to have arrived in North America in the 1850s. In the wild, adult carpet beetles are commonly found on flowering plants. Some species are known for occupying bird nests (such as sparrows and swallows), and bat roosts, though now more commonly as household pests.[3]

Taxonomy

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According to World Dermestidae catalogue (Jiří Háva, 2023), following taxonomic division is proposed for Anthrenus and related groups of Dermestidae, including Anthrenus and related genera:[4]

Species

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Old varied carpet beetle (A. verbasci) with most scales rubbed off
Anthrenus larvae feeding on Sceliphron destillatorium specimen
Anthrenus pimpinellae, probably male
common carpet beetle (A. scrophulariae), probably male
museum beetle (A. museorum), male

Anthrenus contains the following species:[5]

References

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  1. ^ "Opinion No. 1754. Histoire abrégés des insectes qui se trouvent aux environs de Paris (Geoffroy, 1762): some generic names conserved (Crustacea, Insecta)". Bulletin of Zoological Nomenclature. 51 (1). International Commission of Zoological Nomenclature: 58–70. 1994.
  2. ^ "Genus Anthrenus - Carpet Beetles". Archived from the original on 2008-03-06.
  3. ^ Hauze, Deena. "Anthrenus verbasci (varied carpet beetle)". Animal Diversity Web. Retrieved 2024-08-02.
  4. ^ Háva, Jiří (2023). "World Dermestidae. Genera and subgenera division of Dermestidae" (PDF). Archived from the original (PDF) on 19 May 2024. Retrieved 2 June 2024.
  5. ^ Háva, Jiří (2022). "Dermestidae world (Coleoptera)". Retrieved 12 February 2023.
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