Ephydrolithus
Ephydrolithus is a Neotropical genus of water scavenger beetle in the family Hydrophilidae represented by five described species known from Brazil. Taxonomy. The genus Ephydrolithus was described for the first time by Girón & Short in 2019. It belongs in the subfamily Acidocerinae and contains three described species from Brazil (Bahía, Minas Gerais). Description. Small beetles (1.8–3.3 mm), yellowish-brown to dark brown in coloration, with relatively short maxillary palps. A complete diagnosis was presented by Girón and Short. Habitat. According to Girón and Short "All known species are exclusively associated with rock seepages".