A new species of Microstygia Georgiev et Glöer, 2015 (Gastropoda: Hydrobiidae) from Bulgaria

Abstract

The second known species of the genus Microstygia Georgiev et Glöer, 2015 was described, Microstygia lakatnika n. sp. It was found as empty shells in the deposits of the temporary stream of the Temnata Dupka Cave, Iskar River Gorge, Stara Planina Mts in Bulgaria. M. lakatnika n. sp. is a little bit larger and has one more whorl than the type species of the genus, M. deltchevi Georgiev et Glöer, 2015.