Cucujoidea is a superfamily of beetles. This group formerly included all of the families now included in the superfamily Coccinelloidea. They include some fungus beetles and a diversity of lineages of "bark beetles" unrelated to the "true" bark beetles (Scolytinae), which are weevils.
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.
Sphindidae is a family of beetles, in the suborder Polyphaga. They are called slime mold beetles due to their exclusive feeding on slime molds during adult and larval stages, other aspects of their life history are obscure. Palaeontological discoveries since 2015 have added to the geologic history of Sphindidae, including the discovery of Libanopsis, placed in the extinct subfamily Libanopsinae.
Helotidae is a family of beetles, in the suborder Polyphaga. The family includes about five extant genera, Helota MacLeay, Neohelota Ohta, Afrohelotina Kirejtshuk, Metahelotella Kirejtshuk, and Strophohelota Kirejtshuk. Helotidae are found mainly in the Old World tropics and are absent from Australia and Madagascar. The antennae are clubbed on the final three segments and is retractable within grooves under the head. The wings have reduced venation with just 4 anal veins. Helotids are known to be associated with sap, fruit and flowers, and the larvae of some species are known to bore into wood in order to pupate.
Phloeostichidae is a family of beetles in the superfamily Cucujoidea. They are typically found under the bark of dead trees. Larvae have been found to consume plant tissue and some fungi, while the adults appear to be exclusively fungivores. The family contains four extant genera, Phloeostichus is native to the Palearctic, Rhopalobrachium is native to central-southern South America and eastern Australia, Hymaea is native to southeastern Australia, and Bunyastichus is found in Tasmania.
The Brachypsectridae are a family of beetles commonly known as the Texas beetles. There are only two extant genera, Brachypsectra and Asiopsectra. Brachypsectra has a cosmopolitan distribution, mostly in arid regions, while Asiopsectra is found in Central Asia and the Middle East.
Meligethes is a genus of pollen beetles in the family Nitidulidae. There are more than 80 described species in Meligethes.
Pocadius is a genus of sap-feeding beetles in the family Nitidulidae. There are about nine described species in Pocadius.
Amphicrossus is a genus of sap-feeding beetles in the family Nitidulidae. There are about nine described species in Amphicrossus.
Soronia is a genus of sap-feeding beetles in the family Nitidulidae. There are about 14 described species in Soronia.
Stelidota is a genus of sap-feeding beetles in the family Nitidulidae. There are about 15 described species in Stelidota.
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.
2020 in paleoentomology is a list of new fossil insect taxa that were described during the year 2020, as well as other significant discoveries and events related to paleoentomology that were scheduled to occur during the year.
Mysteriomorphus is an extinct genus of beetle, and the only member of the family Mysteriomorphidae. It is known from one described species, Mysteriomorphus pelevini found in Burmese amber, dating to the early part of the Cenomanian stage of the Late Cretaceous but more species are likely due to the morphological diversity of known specimens. It was initially placed in Elateriformia incertae sedis, but a subsequent study found that it was better placed within the Elateroidea, close to Elateridae.
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 to the end of 2023 can be found in Ross (2024).
This paleoentomology list records new fossil insect taxa that were to be described during the year 2021, as well as notes other significant paleoentomology discoveries and events which occurred during that year.
This paleoentomology list records new fossil insect taxa that are to be described during the year 2022, as well as notes other significant paleoentomology discoveries and events which occurred during that year.
This list of 2023 in paleoentomology records new fossil insect taxa that are to be described during the year, as well as documents significant paleoentomology discoveries and events which occurred during that year.
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.
This list of 2024 in paleoentomology records new fossil insect taxa that are to be described during the year, as well as documents significant paleoentomology discoveries and events which occurred during that year.
