Thylodrias contractus

Motschulsky, 1839

Odd Beetle, tissue paper beetle

Thylodrias contractus, commonly known as the odd or tissue paper beetle, is the sole in the Thylodrias within the . to Asia, it has been and become widespread in North America and parts of South America. The species exhibits pronounced , with males and females differing substantially in appearance. It is occasionally reported as a pest.

Thylodrias contractus by (c) carnifex, some rights reserved (CC BY), uploaded by carnifex. Used under a CC-BY license.Thylodrias contractus by (c) Natural History Museum:  Coleoptera Section, some rights reserved (CC BY). Used under a CC-BY license.Thylodrias contractus by (c) carnifex, some rights reserved (CC BY), uploaded by carnifex. Used under a CC-BY license.

Pronunciation

How to pronounce Thylodrias contractus: /θaɪloʊˈdraɪəs kənˈtræktəs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

The displays striking : males and females differ markedly in external . This is significant enough that the sexes were historically described as separate species or even placed in different . Specific diagnostic features distinguishing T. contractus from other are not detailed in available sources, though its genus status renders it identifiable to genus level by definition.

Images

Distribution

to Asia. and established in North America and South America. A record from Belgium is marked as doubtful.

Human Relevance

Occasionally reported as a pest, though specific damage or commodities affected are not documented in available sources. The "tissue paper " suggests an association with paper products or stored materials, but this is speculative.

Similar Taxa

  • Other Dermestidae in T. contractus is sufficiently pronounced that males and females may be mistaken for different or even different , a source of historical taxonomic confusion.

More Details

Taxonomic history

The extreme of Thylodrias contractus led to historical taxonomic confusion, with males and females described as separate entities before their conspecificity was recognized.

Phylogenetic placement

Zhou et al. (2022) included T. contractus in their comprehensive of as part of their analysis of 477 across all .

Tags

Sources and further reading