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.
Cleroidea is a small superfamily of beetles containing about 10,000 species. Most of the members of the group are somewhat slender, often with fairly soft, flexible elytra, and typically hairy or scaly.
The Zopheridae family of beetles has grown considerably in recent years as the members of two other families have been included within its circumscription; these former families are the Monommatidae and the Colydiidae, which are now both included in the Zopheridae as subfamilies or even as tribe of subfamily Zopherinae. Some authors accept up to six subfamilies here, while others merge all except the Colydiinae into the Zopherinae.
Melyridae are a family of beetles of the superfamily Cleroidea.
Chaetosomatidae is a small family of beetles, in the superfamily Cleroidea. There are three extant genera, two of which are endemic to New Zealand with the other (Malgassochaetus) native to Madagascar. Members of this family are predaceous on wood-boring insects.
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 fungus, 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.
Monotomidae is a family of beetles in the superfamily Cucujoidea. The family is found worldwide, with approximately 240 species in 33 genera. The ecological habits of the family are diverse, with different members of the group being found under tree bark, in decaying vegetation, on flowers and in ant nests. Their ecology is obscure, while at least some species are mycophagous, feeding on the fruiting bodies of ascomycete fungi, Rhyzophagus are predators on bark beetles and possibly Phoridae larvae, with the larvae of some species also being mycophagous.
Passandridae, the "parasitic flat bark beetles," are a family of beetles notable for being one of the very few beetle families with larvae that are, as far as known, exclusively ectoparasitic on the immature stages of other beetles and Hymenoptera.
Artematopodidae is a family of soft-bodied plant beetles in the superfamily Elateroidea. They are mostly found in understory forest foliage. The life history of the group is obscure, larvae of the genera Eurypogon and Macropogon likely feed on moss, while the larvae of Artematopus have been fed insect remains.The oldest fossils of the family date to the Middle Jurassic.
Grynocharis quadrilineata is a species of bark-gnawing beetle in the family Lophocateridae.
Grynocharis is a genus of bark-gnawing beetles in the family Lophocateridae. There are at least four described species in Grynocharis.
Metaxina is the only genus in the beetle family Metaxinidae. Its only species is Metaxina ornata. It endemic to the South island of New Zealand, where it is associated with sooty mold growing on Nothofagus trees. Both the larvae and adults are likely predaceous, feeding on insects and other arthropods. It is considered to be a member of the superfamily Cleroidea. Genetic studies have suggested that Metaxina should be considered a member of Chaetosomatidae, rather than constituting its own family.
Peltis is a genus of beetles found in North America and Europe, and the sole extant member of the family Peltidae, formerly included in the Trogossitidae. Members of this genus are dark, averaging from brown, to dark brown, to black. They are small, wide, and flat-bodied with wide, ridged elytra. Fossil species of this genus are known from the Eocene aged Florissant Formation of the United States, as well as the Baltic amber of Europe.
Lophocateridae is a family of beetles in the superfamily Cleroidea, formerly included in the Trogossitidae. Members of the group have a variety of ecologies, including as predators on other insects, as fungivores, or are phytophagous.
Calitys is a genus of beetles belonging to the family Trogossitidae. It is the only member of the subfamily Calityinae. The genus was first described by Thomson in 1859. The genus contains two unambiguous species Calitys scabra, which is native to Europe and North America, and Calitys minor, which is native to North America. Some species have been reported from South Africa, but these are disputed. The two unambiguous species live on and under the bark of coniferous trees, where they feed on fungi.
Protopeltis is a genus of beetles. It contains two species native to New Zealand. It was formerly considered a member of Trogossitidae, but is currently placed as the only member of the family Protopeltidae within the Cleroidea. The larvae have been collected from the fungus infested bark of dead Nothofagus trees. Adult gut contents indicate that they are mycophagous, feeding on probably Hymenochaete fungi. This is also presumably true for the larvae.
Rentoniidae is a family of beetles belonging to Cleroidea. The species were originally included in the family Trogossitidae. They are around 1–2 mm in length, with spherical bodies. Members of the family are native to the Southern Hemisphere, being found in Australia, New Zealand, New Caledonia and South America. They have been found on flowers, under the bark of dead tress, and in leaf litter, and members are known to be pollenivorous or fungivorous.
Thymalidae is a family of beetles in Cleroidea. They were formerly included in Trogossitidae. Members of the subfamily Decamerinae are found in Central and South America, and are associated with flowers, while Thymalus, the only member of the subfamily Thymalinae is found across the Holarctic realm, as well as parts of the Oriental realm, like southern China and Thailand, where they are found associated with the bark of trees. It is assumed that Thymalus larvae feed on fungus in decomposing wood.
