title: Carabus (Pachystus) hungaricus luisacaldonae, a new subspecies from western Bulgaria (Coleoptera Carabidae)
abstract: In this article, a new subspecies of the steppe-dwelling stenobiont Carabus (Pachystus) hungaricus Fabricius, 1792 from western Bulgaria is described and illustrated: Carabus (Pachystus) hungaricus luisacaldonae n. ssp. Remarkably, this new taxon exhibits a strong morphological affinity with the eastern subspecies C. (Pachystus) scythus Motschulsky, 1847, particularly with specimens from localities of the Volga River, rather than with the geographically closed nominotypical subspecies typical of
journal: BIODIVERSITY JOURNAL