Radicitus is a Neotropical genus of water scavenger beetle in the family Hydrophilidae represented by three described species known from the Guiana Shield Region.

[2] It belongs in the subfamily Acidocerinae and contains three described species from Guyana, Suriname, and Venezuela.

[1] Medium-sized beetles (4.5–6.2 mm), moderate to strongly convex in lateral view, dark brown in coloration, with short and stout maxillary palps; reduced hydrofuge pubescence on metafemora.

The elytral punctation may present well defined rows of serial punctures.

[1] Species of Radicitus have been found on a variety of habitats associated with streams and seeps on rock outcrops.