Actenobius

Fall, 1905

Species Guides

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Actenobius is a of beetles in the Ptinidae, established by Fall in 1905. The genus contains two : Actenobius pleuralis, described by Casey in 1898 and currently extant, and Actenobius magneoculus, described in 2015 from a fossil discovered in Spain and now extinct. The placement of this genus has historically varied between Ptinidae and Anobiidae, reflecting ongoing taxonomic refinement in this group of beetles.

Pronunciation

How to pronounce Actenobius: //ˌæk.təˈnoʊ.bi.əs//

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Distribution

Actenobius pleuralis occurs in North America. The extinct Actenobius magneoculus is known only from Cretaceous amber deposits in Spain.

Misconceptions

Some sources incorrectly state that the entire Actenobius is extinct; however, Actenobius pleuralis remains extant. The extinct status applies only to A. magneoculus.

More Details

Taxonomic History

The has been variously classified in Anobiidae and Ptinidae, reflecting the close relationship and ongoing reclassification of these . GBIF currently places Actenobius in Anobiidae, while other sources maintain Ptinidae.

Fossil Record

Actenobius magneoculus represents a rare fossil record for this , preserved in Spanish amber and described by Peris et al. in 2015. This discovery provides insight into the ancient diversity of Ptinidae/Anobiidae beetles.

Sources and further reading