Cucujoidea

The morphology of Cucujoidea is varied and there are no features uniting all members of the superfamily. In terms of general appearance, they tend to be small, drab in colour and with clubbed antennae. Adults can be recognised by the procoxal cavities being internally open in most taxa, females having tarsal formula 5-5-5 and males 5-5-5 or 5-5-4 (rarely 4-4-4), females with tergite VIII concealed dorsally by tergite VII, and males with tergite X completely membraneous. Larvae have frontal arms usually lyriform, the mandible mesal surface usually with well-developed mola, a maxillary articulating area usually present, a hypopharyngeal sclerome usually present, and two pretarsal setae. == Ecology ==

Cucujoidea usually have cryptic habits, living in fungi, leaf litter or dead wood. and some Phalacridae feed on flowers instead. The Nitidulidae are quite varied: some are saprophagous and mycetophagous like typical cucujoids, but others are associated with carrion, flowers, insect nests or stored food products. ==Taxonomy==

According to a 2015 revision, the following 25 families make up superfamily Cucujoidea: (Eocene) Extinct genera • Alloterocucus Li et al., 2022 Burmese amber, Myanmar, mid-Cretaceous (latest Albian- earliest Cenomanian) ==References==