Clambidae: Difference between revisions
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A small family of tiny-sized beetles living in leaf litter, rotten wood and decaying organic material. Two genera and 6 species are known from Taiwan. | A small family of tiny-sized beetles living in leaf litter, rotten wood and decaying organic material, most likely feeding on fungal hyphae or spores <sup>[[#ref1|[1]]]</sup>. Two genera and 6 species are known from Taiwan. | ||
== ''Clambus'' == | == ''Clambus'' == | ||
''Clambus'' species are found in montane forests in altitudes above 2000 m. Five species have been described so far: | Most ''Clambus'' species (except ''C. formosanus'') are found in montane forests in altitudes above 2000 m. Five species have been described so far: | ||
* ''C. | * ''C. formosanus'' Endrődy-Younga, 1959 (non-endemic)<sup>[[#ref2|[2]]]</sup> | ||
* ''C. gibbus'' Endrődy-Younga, 1986 (endemic) | * ''C. gibbus'' Endrődy-Younga, 1986 (endemic)<sup>[[#ref3|[3]]]</sup> | ||
* ''C. klapperichi'' Endrődy-Younga, 1986 (endemic) | * ''C. klapperichi'' Endrődy-Younga, 1986 (endemic)<sup>[[#ref3|[3]]]</sup> | ||
* ''C. pilloselus'' Reitter, 1876 (non-endemic) | * ''C. pilloselus'' Reitter, 1876 (non-endemic)<sup>[[#ref3|[3]]]</sup> | ||
* ''C. tuberculatus'' Endrődy-Younga, 1986 (endemic) | * ''C. tuberculatus'' Endrődy-Younga, 1986 (endemic)<sup>[[#ref3|[3]]]</sup> | ||
== ''Acalyptomerus'' == | == ''Acalyptomerus'' == | ||
[[File:Acalyptomerus_lawrencei.jpg|thumb|right|400px|''Acalyptomerus lawrencei'' from Shoushan Park, Kaohsiung, Taiwan (specimens collected in August 2025).]] | [[File:Acalyptomerus_lawrencei.jpg|thumb|right|400px|''Acalyptomerus lawrencei'' from Shoushan Park, Kaohsiung, Taiwan (specimens collected in August 2025).]] | ||
A single species of ''Acalyptomerus'' is known from Taiwan: ''A. lawrencei'' Liu, Yu & Li, 2025 (non-endemic). In our project, we sampled this species only in Mt. Shoushan and Mt. Banpingshan directly in Kaohsiung City. Despite we have samples Mt. Banpingshan frequently since 2021, the first specimens of this species were found there only in 2024, since then the species is regularly found and locally can be common. The species was described from a city park in Guangzhou City in southern China in 2025 - the species may hence be more widespread in urban areas, and we cannot exclude that it was introduced to Taiwan only recently. | A single species of ''Acalyptomerus'' is known from Taiwan: ''A. lawrencei'' Liu, Yu & Li, 2025 (non-endemic). In our project, we sampled this species only in Mt. Shoushan and Mt. Banpingshan directly in Kaohsiung City. Despite we have samples Mt. Banpingshan frequently since 2021, the first specimens of this species were found there only in 2024, since then the species is regularly found and locally can be common. The species was described from a city park in Guangzhou City in southern China in 2025<sup>[[#ref5|[5]]]</sup> - the species may hence be more widespread in urban areas, and we cannot exclude that it was introduced to Taiwan only recently. | ||
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== References == | == References == | ||
Latest revision as of 15:47, 7 September 2026
A small family of tiny-sized beetles living in leaf litter, rotten wood and decaying organic material, most likely feeding on fungal hyphae or spores [1]. Two genera and 6 species are known from Taiwan.
Clambus
Most Clambus species (except C. formosanus) are found in montane forests in altitudes above 2000 m. Five species have been described so far:
- C. formosanus Endrődy-Younga, 1959 (non-endemic)[2]
- C. gibbus Endrődy-Younga, 1986 (endemic)[3]
- C. klapperichi Endrődy-Younga, 1986 (endemic)[3]
- C. pilloselus Reitter, 1876 (non-endemic)[3]
- C. tuberculatus Endrődy-Younga, 1986 (endemic)[3]
Acalyptomerus
A single species of Acalyptomerus is known from Taiwan: A. lawrencei Liu, Yu & Li, 2025 (non-endemic). In our project, we sampled this species only in Mt. Shoushan and Mt. Banpingshan directly in Kaohsiung City. Despite we have samples Mt. Banpingshan frequently since 2021, the first specimens of this species were found there only in 2024, since then the species is regularly found and locally can be common. The species was described from a city park in Guangzhou City in southern China in 2025[5] - the species may hence be more widespread in urban areas, and we cannot exclude that it was introduced to Taiwan only recently.
References
[1] Crowson R.A. (1979): Observations on Clambidae (Coleoptera), with descriptions of a new genus and species and of several larvae. Revue suisse de Zoologie 86(3): 611–623.
[2] Endrödy-Younga S. (1959): Systematischer Überblick über die Familie Clambidae. Opuscula Entomologica 24: 81–116.
[3] Endrödy-Younga S. (1986): New species and new records for the Palaearctic and Oriental faunas of the family Clambidae (Coleoptera, Eucinetoidea). Revue suisse de Zoologie 93(1): 89–115. DOI
[4] Endrödy-Younga S. (1998): Acalyptomerus Crowson: the circumtropical genus of the family Clambidae (Coleoptera: Clambidae). Koleopterologische Rundschau 68: 199–203.
[5] Liu Z., Yu Y. & Li Z. (2025): Contributions to the Chinese Clambidae and Eucinetidae (Coleoptera: Clamboidea), with description of a new species Acalyptomerus lawrencei (Clambidae) from Guangdong. Annales Zoologici 75(1): 53–60. DOI
