The Archostemata are the smallest suborder of beetles, consisting of 50 living species in five families and over 200 described fossil species.[1] They are an ancient lineage with a number of primitive characteristics. Antennae may be thread-shaped (filiform) or like a string of beads (moniliform). This suborder also contains the only beetles where both sexes are paedogenic, Micromalthus debilis. Modern archostematan beetles are considered rare, but were more diverse during the Mesozoic.
The term "Archostemata" is used more broadly by some authors to include both modern archostematans as well as stem-group beetles like "protocoleopterans", which some modern archostematans closely resemble to due to their plesiomorphic morphology.[2] Genetic research suggests that modern archostematans are a monophyletic group. Some genetic studies have recovered archostematans as the sister group of Myxophaga.[3]
^Li, Yan-Da; Tihelka, Erik; Yamamoto, Shûhei; Newton, Alfred F.; Xia, Fang-Yuan; Liu, Ye; Huang, Di-Ying; Cai, Chen-Yang (2023-08-22). "Mesozoic Notocupes revealed as the sister group of Cupedidae (Coleoptera: Archostemata)". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1015627. ISSN 2296-701X.
^Boudinot, Brendon Elias; Yan, Evgeny Viktorovich; Prokop, Jakub; Luo, Xiao‐Zhu; Beutel, Rolf Georg (28 July 2022). "Permian parallelisms: Reanalysis of †Tshekardocoleidae sheds light on the earliest evolution of the Coleoptera". Systematic Entomology. 48 (1): 69–96. doi:10.1111/syen.12562. ISSN 0307-6970. S2CID 251171914.
^Hörnschemeyer, Thomas (July 2009). "The species-level phylogeny of archostematan beetles—where do Micromalthus debilis and Crowsoniella relicta belong?". Systematic Entomology. 34 (3): 533–558. doi:10.1111/j.1365-3113.2009.00476.x. S2CID 84795808.
The Archostemata are the smallest suborder of beetles, consisting of 50 living species in five families and over 200 described fossil species. They are...
Morphology and Systematics (Archostemata, Adephaga, Myxophaga, Polyphaga partim). p. 54. ISBN 978-3-11-017130-3. "Suborder Archostemata – Reticulated and Telephone-pole...
Myxophaga is the second-smallest suborder of the Coleoptera after Archostemata, consisting of roughly 65 species of small to minute beetles in four families...
phylogenetic position is contested, with others considering it part of Archostemata. The interfamilial relationships of Curculionoidea have been generally...
Smetana, A., eds. (2017). Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata - Myxophaga - Adephaga. Apollo Books. ISBN 978-90-04-33029-0. v t e...
into aquatic habitats by the Late Permian. Members of the modern orders Archostemata and Adephaga are known from the Late Permian. Complex wood boring traces...
new fossil species of the reticulated beetle genus Cupes (Coleoptera: Archostemata: Cupedidae) from Eocene Baltic amber". Zootaxa. 5432 (4): 451–460. doi:10...
Smetana, A., eds. (2017). Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata - Myxophaga - Adephaga. Apollo Books. ISBN 978-90-04-33029-0. v t e...
Micromalthidae is an ancient family of small beetles belonging to the suborder Archostemata. The only known living representative is the telephone-pole beetle, Micromalthus...
beetle fossils were discovered, even entire specimen of the infraorders Archostemata (i.e., Ademosynidae, Schizocoleidae), Adephaga (i.e., Triaplidae, Trachypachidae)...
Smetana, A., eds. (2017). Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata - Myxophaga - Adephaga. Apollo Books. ISBN 978-90-04-33029-0. Media related...
Smetana, A., eds. (2017). Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata - Myxophaga - Adephaga. Apollo Books. ISBN 978-90-04-33029-0. Media related...
Smetana, A., eds. (2017). Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata - Myxophaga - Adephaga. Apollo Books. ISBN 978-90-04-33029-0. v t e...
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