Priacma

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Priacma
Temporal range: Cenomanian–Present
Priacma serrata.jpeg
Priacma serrata
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Cupedidae
Genus: Priacma
LeConte, 1874
Type species
Cupes serrata
LeConte, 1861
Species
  • P. serrata (LeConte, 1861)
  • P. megapunctaLi & Cai in Li et al., 2019

Priacma is a genus of beetles in the family Cupedidae. It contains a single extant species, Priacma serrata native to western North America [1] and one fossil species, P. megapuncta from the Cenomanian aged Burmese amber. [2] Species previously assigned to the genus from the Yixian Formation of China [3] have been subsequently placed in the separate genus Apriacma . [4]

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The telephone-pole beetle is a beetle native to the eastern United States, and the only living representative of the otherwise extinct family Micromalthidae. Larvae of the beetle live in decaying wood and can be pests to wooden structures, lending them their common name, the 'telephone-pole beetle.'

<span class="mw-page-title-main">Myxophaga</span> Suborder of beetles

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<span class="mw-page-title-main">Jurodidae</span> Family of beetles

Jurodidae is a family of beetles that was originally described for the extinct genus Jurodes, known from the Middle-Late Jurassic of Asia. In 1996, a living species, Sikhotealinia zhiltzovae was discovered in the Sikhote-Alin mountains in southeastern Siberia, and assigned to this family. Their placement is uncertain, but are usually considered archostematans. In one study, Sikhotealinia and Jurodes were considered a sister group to all other archostematan beetles. However, other authors have considered their placement within beetles as a whole uncertain, due to their mix characteristics of typical Archostemata, as well as Polyphaga and Adephaga.

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<span class="mw-page-title-main">Ommatidae</span> Family of beetles

The Ommatidae are a family of beetles in the suborder Archostemata. The Ommatidae are considered the extant beetle family that has most ancestral characteristics. There are only seven extant species, confined to Australia and South America. However, the geographical distribution was much wider during the Mesozoic spanning across Eurasia and Australia, suggesting that they were widespread on Pangea. So far, over 26 extinct genera containing over 170 species of these beetles have been described. Three extant genera have been assigned to this family: Omma,Tetraphalerus and Beutelius. The family is considered to be a subfamily of Cupedidae by some authors, but have been found to be more closely related to Micromalthidae in molecular phylogenies. A close relationship with Micromalthidae is supported by several morphological characters, including those of the mandibles and male genitalia. Due to their rarity, their ecology is obscure, it is likely that their larvae feed on deadwood.

<i>Omma</i> Genus of beetles

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2019 in paleoentomology is a list of new fossil insect taxa that were described during the year 2019, as well as other significant discoveries and events related to paleoentomology that were scheduled to occur during the year.

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2015 in paleoentomology is a list of new fossil insect taxa that were described during the year 2016, as well as other significant discoveries and events related to paleoentomology that were scheduled to occur during the year.

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<i>Burmocoleus</i> Extinct genus of beetles

Burmocoleus is an extinct genus of archostematan beetle belonging to the family Ommatidae. It is known from two species, Burmocoleus zhiyuani, which was initially assigned to the genus Brochocoleus. This species was placed into the new genus Burmocoleus by Kirejtshuk, 2020, who also described a new species, Burmocoleus prisnyi. Both species are known from the Cenomanian aged Burmese amber from Myanmar. Similar to Stegocoleus, Brochocoleus and Jarzembowskiops it has flat, wide elytral edges, but can be distinguished from these genera in several characters, and is more similar to other ommatids in the characters of the prothorax.

<i>Cionocups</i> Extinct genus of beetles

Cionocups is an extinct genus of ommatid beetle. It is known from a single species, Cionocups manukyani, found in Cenomanian aged Burmese amber from Myanmar. It was originally considered to be closely related to the genus Cionocoleus, but it is considered a junior synonym of Omma by some subsequent authors.

<i>Clessidromma</i> Extinct genus of beetles

Clessidromma is an extinct genus of ommatid beetle. It currently contains a single species Clessidromma palmeri, known from the Cenomanian aged Burmese amber of Myanmar. Kirejtshuk (2020) synonymised Lepidomma with Clessidromma and included two additional species in the latter: C. tianae, originally the type species of Lepidomma, and C. zengi, a newly described species. Li et al. (2021) disputed the synonymy of Lepidomma with Clessidromma, maintaining Lepidomma as a separate genus, and transferred C. zengi to a new genus, Kirejtomma, in 2021.

Jarzembowskiops is an extinct genus of ommatid beetle. It is known from one species, J. caseyi described from the Cenomanian aged Burmese amber of Myanmar. It was originally placed as a species of Brochocoleus, but was subsequently considered distinct enough to warrant its placement in its own separate genus. The species is named after Raymond Casey, a British geologist, while the genus is named after Edmund Jarzembowski, a noted British palaeoentomologist.

Burmese amber is fossil resin dating to the early Late Cretaceous Cenomanian age recovered from deposits in the Hukawng Valley of northern Myanmar. It is known for being one of the most diverse Cretaceous age amber paleobiotas, containing rich arthropod fossils, along with uncommon vertebrate fossils and even rare marine inclusions. A mostly complete list of all taxa described up until 2018 can be found in Ross 2018; its supplement Ross 2019b covers most of 2019.

Lepidomma is an extinct genus of ommatid beetle. The genus was first described in 2019 for the species L. tianae. Lepidomma was synonymised with Clessidromma by Kirejtshuk, 2020. This synonymy was disputed by Li et al. (2021), who maintained Lepidomma as a separate genus from Clessidromma. Three additional species of Lepidomma were described in 2020 and 2022. All four species are known from the Cenomanian aged Burmese amber of Myanmar.

<i>Notocupes</i> Extinct genus of beetles

Notocupes is an extinct genus of medium-sized archostematan beetles from the Mesozoic Era of Eurasia, including over 50 described species. Historically, the genus was classified as a member of the family Ommatidae, but the presence of characters such as the horizontal mandibular cutting edge, separated procoxae and overlapping abdominal sternites indicate that the genus may have a closer affinity with the family Cupedidae. Notocupes is considered to be a junior synonym of Zygadenia by Kirejtshuk (2020), but other researchers suggest to reserve the genus Zygadenia as a form taxon for isolated elytra that probably belong to the genus Notocupes, while retaining Notocupes as a valid genus for complete body fossils. Most species of Notocupes were described from compression fossils. An additional three species were described from Cenomanian-aged Burmese amber, which were treated as a separate genus, Echinocups, by Kirejtshuk (2020), but Li et al. (2023) consider Echinocups to be a junior synonym of Notocupes. Notocupes has a flattened body, which may suggest that it occupied narrow habitats, such as living under bark. Some species had serrated/spined margins of the carapace, which may have served as a defense against predators, or served as camouflage to resemble bark.

References

  1. Arnett, R.H., Jr. & M. C. Thomas, eds. American Beetles, Volume 1: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia. Boca Raton, FL: CRC Press, 2001. p. 20.
  2. Li, Yan-Da; Liu, Zhen-Hua; Jarzembowski, Edmund A.; Yin, Zi-Wei; Huang, Di-Ying; Cai, Chen-Yang (2019). "Early evolution of Cupedidae revealed by a mid-Cretaceous reticulated beetle from Myanmar (Coleoptera: Archostemata)". Systematic Entomology. 44 (4): 777–786. Bibcode:2019SysEn..44..777L. doi:10.1111/syen.12355. ISSN   1365-3113. S2CID   202852115.
  3. Tan, J.J.; Ren, D.; Shih, C.K. (2006). "First record of fossil Priacma (Coleoptera: Archostemata: Cupedidae) from the Jehol Biota of western Liaoning, China" (PDF). Zootaxa . 1326: 55–68. doi:10.11646/zootaxa.1326.1.6.
  4. Kirejtshuk, A. G.; Nel, A.; Kirejtshuk, P. A. (October 2016). "Taxonomy of the reticulate beetles of the subfamily Cupedinae (Coleoptera, Archostemata), with a review of the historical development". Invertebrate Zoology. 13 (1): 61–190. doi: 10.15298/invertzool.13.2.01 . ISSN   1812-9250.