Campyloxeninae is a subfamily of click beetles in the family Elateridae.

It was established by Cleide Costa [species] in 1975 with the genus Campyloxenus, former member of the tribe Pyrophorini under the subfamily Agrypninae, as the only member.

[1] In 2015, genus Malalcahuello [species] was described from Chile as a new member of this subfamily.

[2] Claws without setae near the base; hind wings with wedge cell; female genitalia with stylus and a very elongate baculum.

[3] The features of Campyloxenus pyrothorax Fairmaire & Germain, 1860 (the only member of the genus Campyloxenus) which distinguish it from members of Pyrophorini are as follows:[4]