Hydrochus ibericus from the foothills of the Iberian Mountains in Soria pro
vince (type locality) and in several localities in southern and eastern mou
ntainous areas of the Iberian Peninsula is described. Phylogenetically, the
new species belongs to the Hydrochus elongatus-ignicollis-angusi species g
roup and is a sister-species of H. angusi, another also probably endemic sp
ecies from the Iberian Peninsula.