Roncus hajnehaj n. sp. (Neobisiidae, Pseudoscorpiones), a new endemic cave pseudoscorpion from Montenegro

A new species of cave-dwelling pseudoscorpions pertaining to the genus Roncus L. Koch, 1873 from Montenegro is erected. Its relations with close congeners are briefly discussed. The new species, Roncus hajnehaj n. sp., is an endemic form presently known only from its type locality (Haj Nehaj Pecina Cave, nr. Sutomore, Montenegro).