Kateretes is a genus of short-winged flower beetles in the family Kateretidae. There are about six described species in Kateretes.
The Cupedidae are a small family of beetles, notable for the square pattern of "windows" on their elytra, which give the family their common name of reticulated beetles.
Enicocephalidae, also called unique-headed bugs and gnat bugs, are a family of around 300 species of the suborder heteroptera. They are typically 4 mm long, and found throughout the world. They have an elongated head, constricted in places, hence their head is 'unique'.
Tetratomidae is a small family of beetles sometimes called polypore fungus beetles. The family consists of several genera, most of which used to be in the family Melandryidae. Tetratomidae can be found worldwide.
Ripiphoridae is a cosmopolitan family of some 450 described species of beetles sometimes called "wedge-shaped beetles". Ripiphoridae are unusual among beetle families in that many species are hypermetamorphic parasitoids, an attribute that they share with the Meloidae. Members of the family differ in their choice of hosts, but most attack various species of bees or wasps, while some others attack cockroaches or beetles. Many species of Ripiphoridae have abbreviated elytra, and flabellate or pectinate antennae.
Cryptophagidae is a family of beetles with representatives found in all biogeographic realms. Members of this family are commonly called silken fungus beetles and both adults and larvae appear to feed exclusively on fungi although in a wide variety of habitats and situations, such as rotting wood and shed animal fur and feathers. These beetles vary from about 1 to 11 millimeters long, and usually have an oval body shape with a slight "waist".
Lepicerus is a genus of myxophagan beetles containing three described species in the family Lepiceridae; it is the only extant genus in the family, with another genus, Lepiceratus only known from fossils. Extant species occur in the Neotropics, from Mexico south to Venezuela and Ecuador. Fossils referrable to the genus are known from the early Late Cretaceous of Southeast Asia.
Endomychidae, or handsome fungus beetles, is a family of beetles with representatives found in all biogeographic realms. There are around 120 genera and 1300 species. The family was established based on the type genus Endomychus, a genus erected in 1795 by Panzer which was applied to a species that Linnaeus called Chrysomela coccinea. As the common name suggests, Endomychidae feed on fungi. Crowson, in his influential treatment of the beetles, placed the family within the Cucujoidea. They have a tarsal formal of 4-4-4 or 3-3-3 and the wings lack a closed radial cell. The second antennal segment has a sensory appendage that is as long as the third antennal segment. The family has also been grouped with the Coccinellidae in a group called the Trimera for having pseudotrimerous tarsi. A 2015 molecular phylogeny study found that the Cucujoidea were found to be non-monophyletic and the Endomychidae was refined with the removal of the Anamorphinae from within the family and elevated to the status of a full family, Anamorphidae. Mycetaeinae and Eupsilobiinae were also found not to belong within the clades of the core Endomychidae, and likewise reclassified into the families Mycetaeidae and Eupsilobiidae.
Sphindidae is a family of beetles, in the suborder Polyphaga. They are also known as 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. There are at least three genera in Phloeostichidae.
Smicripidae is a family of beetles, in the superfamily Cucujoidea. The common name for this family is palmetto beetles. The family only has one extant genus, Smicrips, with six extant species native to tropical and subtropical regions of the Americas and extinct species from the Eocene of Europe and one extinct genus, Mesosmicrips, known from the mid Cretaceous aged Burmese amber. Smicrips larvae are usually found amongst decaying vegetation, while adults are typically found on infloresences, especially those of Arecaceae (palms), althought associations with flowers of Fabaceae, Passifloraceae, Bombacaceae and Cactaceae (cactus) have also been recorded. Their diet is unknown.
Melandryidae is a family of false darkling beetles in the order Coleoptera. There are at least 40 genera and 100 described species in Melandryidae.
Schizopteridae is the largest family in the infraorder Dipsocoromorpha and comprises 56 genera and approximately 255 species. Schizopterids are some of the smallest (0.5–2.0 mm) true bugs. Members of this family can be distinguished by their small size, enlarged forecoxae and varying degree of abdominal and genitalic asymmetry in males. Schizopteridae exhibit a wide range of simple and complex wing venation patterns. The group is currently divided into three subfamilies: Schizopterinae, Ogeriinae and Hypselosomatinae.
Throscidae is a family of small false click beetles in the order Coleoptera. In North America, there are 3 genera and 20 described species.
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.
Derolathrus is a genus of Jacobson's beetles in the family Jacobsoniidae. There are 11 described species in Derolathrus.
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.
