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.

Genera

According to Kirejtshuk, 2020 and subsequent literature.

Extinct genera

* +Allophalerus Kirejtshuk, 2020 - Early Jurassic-Late Cretaceous (Asia)
* +Asiania Lee et al., 2023

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