The spiders Walckenaeria stylifrons (O. Pickard-Cambridge, 1875) and Spiracme mongolica (Schenkel, 1963) are reported from Slovakia for the first time. These new records are based on adult males found in Western Slovakia in xerothermic habitats. The occurrence of W. stylifrons in Slovakia fills the gap in its distribution in Pannonian Basin and between Austria and Ukraine. Spiracme mongolica has been known only from the Balkans and south-eastern part of Europe to central Asia, this is the first record for Central Europe. We suggest Spiracme mongolica (Schenkel, 1963) new combination for Xysticus mongolicus Schenkel, 1963. Characteristic features, photographs of habitus and copulatory organs, and habitats of the new records are presented. 

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Two rare and interesting spider species (Gnaphosa mongolica Simon, 1895 and Haplodrassus bohemicus Miller & Buchar, 1977) were found during intensive research into the Pannonic sand steppes in Slovakia and represent new records for the country. Numerous specimens of both species were collected between the villages Radvaň nad Dunajom and Marcelová in the years 2017–2020 (145 ind. G. mongolica and 82 ind. H. bohemicus), indicating stable populations. The Slovak records of G. mongolica represent the northernmost and westernmost location of the species in Europe. The characteristic features, photos of the habitus and genitalia, the currently known distribution in Europe and the phenology of both species are provided. A more detailed discussion concerns the morphology of copulatory organs of H. bohemicus, including the first report of a lateral gynandromorphy in this species.