Well Polished Beetles

Euxestidae, also known as well-polished beetles due to their shiny exoskeleton, are a beetle family within superfamily Coccinelloidea of infraorder Cucujiformia. They were long included in the coccinelloid family Cerylonidae (minute bark beetles) or the more distantly related cucujiforms Erotylidae (pleasing fungus beetles) or the then-distinct family Colydiidae (cylindrical bark beetles, now in family Zopheridae) as a subfamily Euxestinae, before becoming recognized as a distinct family from 2015 onwards. Euxestidae contain around 70 extant species in 11 genera, distributed primarily in the tropical and subtropical regions of Afro-Eurasia.

These beetles are found in decomposing wood, leaf litter, ant nests, and the fungus gardens of termites. All species are presumed to be mycophagous.