Description of a cave-dwelling species Duvalius karaormanicus sp. n. (Coleoptera: Carabidae: Trechinae) from the southwestern part of the Republic of Macedonia

A new species, Duvalius karaormanicus sp. n., in the subgenus Euduvalius, is described from the type locality: Mlečnik cave in the Karaorman Mountain in the south-western part of the Republic of Macedonia. This is the second cave-dwelling Duvalius and the sixth representative of the genus so far recorded from the Republic of Macedonia. Based on its diagnostic characters, the new species is found to be related to the species in the “gogalai” and “petroclzilosi” groups. D. karaormanicus sp. n. occupies an intermediate position between the species from these two groups and is therefore placed in a separate “karaormanicus” species group.